HELICOPTER, ATTACK, AH-64D LONGBOW APACHE. TECHNICAL MANUAL (2002)

TM 1-1520-251-10

3.53.10 RECEIVED MESSAGES.

a. REVIEWING RECEIVED ATHS MESSAGES.

There are three different ways to review a received mes-

NOTE

sage. To review a received message, follow one of the

procedures described:

ATHS - TACFIRE messages can only be

opened and viewed from the ATHS MSG

Procedure #1

RCV page. The COM IDM MSG RCV will

only allow for the deletion of an ATHS - TAC-

1. TSD page REC button (if the last message re-

FIRE message.

ceived is a tactical message) - Press as re-

quired. Upon selection of this button the page

The received message function of the IDM allows the ob-

will automatically switch to the RCVD MSG

server to access the received message list to review new

page.

messages. It also allows the observer to review and de-

lete any previously received messages, to include re-

2. Message to be reviewed - Select by pressing

ceived fire requests. When an ATHS - TACFIRE IDM mes-

button adjacent to appropriate message num-

sage is received, it will be stored in the RCVD MSGS

ber.

index of the IDM buffer and an ATHS message advisory

will appear on the MPD and UFD. An audible MODEM

3. Delete message as appropriate.

communication squelch is readily perceivable during the

message transmission and reception. Twelve messages

Procedure #2

(12 per ATHS - TACFIRE radio) can be stored for review

and deletion when desired, except for situation/status re-

1. COM page MSG REC button - Press as re-

ports which are automatically deleted upon review. Mes-

quired.

sages received while the RCVD MSGS index is full will not

be accepted, and the received advisory will not be dis-

2. Select TACFIRE message to be reviewed - Se-

played. When a message is received an acknowledge

lect by pressing button adjacent to appropriate

(ACK) is automatically transmitted back to the message

message number.

originator with no operator action required. Messages re-

ceived which are not recognizable, improperly addressed

3. RVW button - Press as required.

(net data incorrect), or unprocessable will be ignored. The

originator will not have an ACK displayed and an ATHS -

4. Review message.

TACFIRE MESSAGE will not be displayed to the receiver.

A message received which is acceptable, but from an

5. Delete message as appropriate.

originator not defined in the subscriber list, will be stored

and an advisory displayed; however, an ACK will not be

Procedure #3

transmitted back. A message received addressed to the

Team or Broadcast identifiers will be stored and an advi-

1. COM page ATHS button - Press as required. It

sory displayed but an ACK will not be sent to the origina-

is also possible to access ATHS button via the

tor. The RCVD MSG index will show the message num-

TSD RPT page.

ber, the identifier of the sender, a three character identifier

of message type, a six character field indicating the mes-

2. INDEX button - Press, as required, to display

sage content, and the status of the message. If the mes-

ATHS - TACFIRE INDEX page.

sage has been reviewed, delete (DEL) will appear next to

the right hand button line; if not yet reviewed, NEW will ap-

3. RCVD MSG line - key button - Press to display

pear. Another function of the received messages is that it

received message index.

allows the observer to leave the ATHS - TACFIRE pages

and still be able to manage a fire mission. The fire mission

4. Message to be reviewed - Select by pressing

summary pages will be automatically updated upon the

button adjacent to appropriate message num-

receipt of new mission commands. Received FREE TEXT

ber.

and movement messages can be deleted on the page that

they are reviewed. If delete is selected, the system will re-

5. Delete message as appropriate.

turn to the received message index page. Situation/status

reports are automatically deleted after they have been re-

6. To return to ATHS - TACFIRE index page, IN-

viewed and the information is stored in the status pages.

DEX button - Press.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-65

TM 1-1520-251-10

b. ATHS MESSAGES. Table 3 - 3 lists all different

ATHS messages that can be displayed on the MSG REC

page.

Table 3-3.

ATHS Messages

TYPE OF MESSAGE

MESSAGE DISPLAYED ON THE MSC REC PAGE

Free Text

FREE TEXT T

Airborne Battle Damage Assessment/Casualty Report

BDA REPORT T

Airborne Situation Report

FARM REPORT T

Position Update Request

PP QUERY T

Position Update Reply

PP REPORT T

Airborne Mayday

MAYDAY REPORT

Airborne Movement Command

MOVE COMMAND

AIrborne Spot Report

SPOT REPORT

Airborne Negative Spot Report

NEG SPOT REPORT

Airborne Fire Request

AIR FIRE REQUEST

Airborne Mission Command

AIR FIRE REQUEST

Airborne Check All

AIR FIRE REQUEST

Airborne Target Position Update

AIR FIRE REQUEST

Artillery Intelligence Report

ARTY INTL GRID

Fire Request Grid

ARTY FIRE RQST

Fire Request Quick

ARTY FIRE RQST

Fire Request Shift

ARTY FIRE RQST

Forward Observer Command

ARTY FIRE RQST

Subsequent Adjust

ARTY FIRE RQST

End of Mission and Surveillance

ARTY FIRE RQST

Message to Observer

MSG TO OBSERVER

Observer Location

OBSERVER READY

Intialization Message

BULK MESSAGE

All Other Messages

ATHS MESSAGE

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66

TM 1-1520-251-10

Section IIA.

COMMUNICATIONS SUBSYSTEM

3.53A INTRODUCTION

• Load Maintenance Panel (LMP) (COMSEC)

NOTE

This section covers the description and operation of the

aircraft communication subsystem and the Transponder/

The APX-100(V) Transponder or

IFF subsystem (fig 3-62A). Both voice and digital commu-

APX-118(V) may be installed. If

nications are supported by the following equipment:

APX - 100(V) is installed, Kit - 1C computer

must be installed for Mode 4 operation.

• ARC-186(V) VHF-AM Radio Set

• ARC-164(V) UHF-AM Radio Set (HAVEQUICK)

Each crewstation provides the crew with independent

• TSEC/KY-58 (CIPHER DEVICE)

control and status monitoring of the communication sub-

system via the Multi - Purpose Display (MPD), Up Front

• ARC-201D VHF-FM (SINCGARS) 2 each

Display (UFD) or Enhanced Up Front Display (EUFD),

• IFM-101A/AM-7189A/ARC Improved FM (IFM)

and Keyboard Unit (KU). In addition, monitor select and

Amplifier

volume/squelch controls for each of the five radios are

• ARC-220 HF Radio Set

controlled by the COMM panel in each crewstation. The

communication subsystem equipment is powered from

• TSEC/KY - 100 (HF CIPHER DEVICE)

the battery bus and defaulted to ON when power is ap-

• APX-100(V) Transponder

plied. However crew control of the radios is limited until

aircraft or external power is applied. After aircraft power

has been applied to the MPDs, rapid initialization of the

• APX-118(V) Transponder

radio presets and Signal Operating Instructions (SOI) can

• MD-1295/A Improved Data Modem (IDM)

be accomplished via the Data Transfer Unit (DTU).

AM1789A/ARC

ARC−186

IMPROVED FM

VHF−AM RADIO

AMPLIFIER

ARC−201D (FM2)

VHF−FM RADIO

SYSTEM

PROCESSOR q2

HF POWER AMPLIFIER

COUPLER

ARC−201D (FM1)

DATA TRANSFER

UNIT

VHF−FM RADIO

ARC220 HF RADIO

DISPLAY

ARC−164

PROCESSOR q2

UHF−AM RADIO

COMMUNICATION

INTERFACE

UNIT (CIU)

KY−58/TSEC

PROCESSOR

SECURE VOICE

KY−100/TSEC

PROCESSOR

SECURE VOICE / DATA

KIT−1C/TSEC

MD1295/A

IMPROVED DATA

TRANSPONDER

MODEM (IDM)

COMPUTER (WITH APX100)

SYSTEM

DISPLAY

APX−100(V) OR APX118(V)

PROCESSOR q1

IFF TRANSPONDER

LBA5080A

Figure 3-62A. Communications Subsystem

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.1

TM 1-1520-251-10

3.53B ARC-186(V) VHF-AM RADIO SET

3.53C.1 Frequency Hopping (FH) Capability (HAVE

QUICK). The FH capability is an Electronic Counter-

Counter Measure (ECCM) enhancement to the standard

UHF radio by which the frequencies being used and the

The aircraft has one ARC-186 VHF radio which provides

dwell times are rapidly changed many times a second.

The radio requires three items to determine the FH pat-

two-way communication over VHF-AM frequency range

tern:

(116.000 through 151.975 MHz) in 0.025 MHz channel

spacing.

a. Time of Day (TOD). The TOD is synchronized to

the radio clock, which is normally set to Coordinated Uni-

versal Time (UTC). The TOD is required by the radio to

maintain its internal clock, which controls the FH timing.

NOTE

The crew may send or receive the TOD signal if FH com-

munication is desired through non - TOD synchronized ra-

dios. Receiving the TOD affects only the internal clock of

ARC-186 FM frequencies (30.000 through

the UHF radio.

87.975 MHz) are not implemented. See

b. Word of Day (WOD). The WOD is classified and

paragraph 3A.8

controlled by the National Security Agency (NSA). The

WOD programs the FH pattern and rate. The radio cannot

function in the FH mode without a valid WOD. A WOD is

required for each day and consists of up to six segments,

3.53B.1 VHF Tone. Selecting the VHF TONE button

which code the radio for FH. For HaveQuick 2 radios, the

will not generate a tone from the radio but will transmit a

WOD must be tagged with its operational day (1-31). The

”dead carrier” over the air for maintenance.

WODs are loaded into the radio through the DTU or by the

crew.

c. Net Number. The net number programs the radio

to operate in one of the FH modes, selects the frequency

3.53C ARC-164(V) UHF-AM RADIO SET (HAVE

table to be used and determines entry point into the FH

QUICK)

pattern. Net numbers enable multiple station pairs to op-

erate simultaneously using the same WOD and TOD with-

out interference. The net number will be loaded into the

radio through the DTU or via the crew.

The aircraft has one ARC-164 UHF radio which provides

3.53C.2 UHF Tone. Selecting the UHF TONE button

two-way communications over UHF-AM frequency range

generates an audio tone from the radio and transmits the

(225.000 through 399.975 MHz) in 0.025 MHz channel

tone over the air.

spacing. The radio contains a separate, dedicated guard

3.53D TSEC/KY-58 VOICE SECURITY SYSTEM

receiver fixed tuned to 243.000 MHz, thus providing capa-

bility to simultaneously monitor guard frequency (243.000

The aircraft has one TSEC/KY-58 Voice Security System

MHz) while receiving and transmitting on any frequency

for the UHF radio, which provides encrypted communica-

other than 243.000 MHz. When the transceiver is tuned to

tion. The TSEC/KY-58 has the capability to store up to six

Crypto Net Variables (CNV). CNVs are COMSEC vari-

243.000 MHz, the dedicated guard receiver is automati-

ables required to establish the encryption process inside

cally turned OFF. The radio set has squelch capability and

the TSEC/KY-58. CNVs are generally loaded directly into

can operate in either single channel or frequency hopping

the TSEC/KY-58 with a fill device by the maintenance

mode. The frequency hopping capability of the UHF radio

crew at the Remote Selectable Fill Port, but may also be

is referred to as HAVE QUICK. There can be one of two

loaded through RF Link. TSEC/KY-58 controls are imple-

versions of HAVE QUICK radios installed in the aircraft.

mented on the MPD and/or the EMERGENCY Panel and

HAVE QUICK 1 radios provide the capability to load one

the LMP.

word of day into the radio and utilize 6 training frequencies

3.53D.1 KY-58 Tones. The KY-58 generates tones for

for the training mode. HAVE QUICK 2 radios provide the

variable loading and failure conditions. An additional tone

capability to load up to six words of the day into the radio

is generated when the KY-58 is ready to transmit or re-

and utilize 16 training frequencies for the training mode.

ceive.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.2

Change 3

TM 1-1520-251-10

3.53E AN/ARC-201D VHF-FM SINGLE CHANNEL

Table 3-3A. RF Output Levels

GROUND & AIRBORNE RADIO SET (SINCGARS)

Power Setting

Effective Radiating Power (Watts)

The aircraft has two ARC-201D VHF-FM radios. The radio

LOW

2.5

sets provide two-way communications over the VHF-FM

NORM

10.0

frequency range of 30.000 through 87.975 MHz in 0.025

MHz channel spacing. The radio set operates in either

HIGH

40.0

single channel or frequency hopping (FH) mode. The two

OFF

10.0

ARC-201D radios are referred to as FM1 and FM2 or, in

general, as FM. Secure voice/data communications are

The communications subsystem provides capability to set

provided by COMSEC equipment which is embedded in

IFM Power to LOW /NORMAL /HIGH /OFF via the MPDs.

the radios. Zeroizing the individual radio can be accom-

plished from the MPD.

3.53E.1 Frequency Hopping (FH) Capability. This

enhancement provides a FH capability (frequencies and

CAUTION

dwell times are rapidly changed many times a second).

• The IFM should be turned OFF when

FH provides an anti-jamming capability which can operate

operating the radios on battery power

in conjunction with a secure communications mode.

to avoid draining the aircraft battery.

Three items required to determine FH patterns are:

•

Transmitting IFM in HIGH while both

a. Time. Time is in the form: day, hour, and minutes.

FMs are tuned to the same frequency

Time is required by the radio to maintain its internal clock,

may cause damage to the FM2 receiv-

which controls FH timing.

er.

NOTE

b. Hopset. The Hopset is classified and controlled

Failure of the IFM will turn off the sidetone

by the NSA. The Hopset programs frequency hopping

from the ARC-201D FM1 radio. An IFM fail-

rate and frequency hopping pattern. The range of Hopsets

ure is also reported during radio IBIT. The

is between 001 - 999. There are up to six Hopsets loaded

FM1 radio may still be able to transmit at its

into the radio. Hopset information can be inserted locally

own internal power of 10 Watts. Should an

through the fill device with control provided by the load

IFM failure occur, it is recommended to turn

maintenance panel (LMP) and connected via the remote

IFM off.

selectable FILL port. It can also be distributed by Radio

3.53G AN/ARC-220 HF RADIO SET

Frequency (RF) link also known as ECCM Remote Fill.

The aircraft has one ARC-220 HF radio. The ARC - 220

provides High Frequency airborne communications in the

c. Lockout Set. During frequency selection for the

2.0000 through 29.9999 MHz frequency range, in 0.1 kHz

Hopsets, it may be determined that interference may re-

spaced steps. The ARC-220 operates in the following

sult between two nets using the same frequency. In this

modes:

case one of two types of lockouts, common or unique, is

• Manual tuning

automatically loaded when the system locally filled or

• Preset Channel tuning

through an ECCM Remote Fill.

• ALE (Automatic Link Establishment)

3.53F IMPROVED FM (IFM)

• ECCM Frequency Hopping

• Emergency

The Emergency mode is a preprogrammed configuration

The aircraft has one IFM amplifier to vary the RF power

of the ARC- 220 radio. The ARC - 220 radio will be referred

output of the FM1. The four power levels are listed in

to hereinafter as the HF radio. Refer to Table 3-3B for HF

Table 3-3A.

advisory and status messages.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.3

TM 1-1520-251-10

Table 3-3B. HF Radio Advisory/Status Message

3.53H KY - 100 HF RADIO COMMUNICATION

Table

SECURITY SYSTEM

Advisory/Status

Description

Message

The aircraft has one TSEC/KY - 100 Communications Se-

ANT TUNING

Radio is tuning the antenna

curity System which provides encrypted communications

for the HF radio. The TSEC/KY-100 transforms voice,

ANT UNTUNED

Radio ECCM net is not pre - tuned

digital data, or analog data into ciphertext information.

The TSEC/KY - 100 has the capability to store up to six

CALLING

An ALE call is being transmitted

Crypto Net Variables (CNV). CNVs are COMSEC vari-

ables required to establish the encryption process inside

CALL FAILED

ALE call has failed on all attempts.

the TSEC/KY-100. CNVs are generally loaded directly

into the TSEC/KY - 100 with a fill device at the Remote Se-

CALL RESPND?

ALE call detected: however, radio

lectable Fill Port, but may also be loaded through RF Link.

set to SILENT mode, crew must

TSEC/KY - 100 controls are implemented on the MPD.

press PTT to establish call.

CHECK MSG

Radio received text message: can

be reviewed and/or deleted.

3.53I APX-100 TRANSPONDER

FILL CHECK

Radio is checking fill data.

FILL PROCESS

Radio is processing fill data.

The aircraft contains one transponder, an APX-100 or

APX-118 (para 3.53J) which provides automatic radar

FILL RECVING

Radio is receiving fill data.

identification of the aircraft to all suitably equipped sta-

tions. The transponder receives, decodes, and responds

FILL WAITING

Radio is waiting for fill data.

to interrogation of the following modes:

GO DATA ONLY

Transmission quality poor, should

switch to data transmission only.

MODE 1

Provides 32 possible code

LINKED

ALE link established

combinations that can be selected

PP RECEIVED

Radio received a present position

in-flight. Possible code combinations

report; can be stored or deleted.

are: 00-03, 10-13, 20-23, 30-33, 40-43,

50-53, 60-63, and 70-73.

RECVING CALL

Incoming ALE call being received.

MODE 2

Provides 4096 possible code

combinations. The desired code must

RECVING DATA

Radio is receiving digital data.

be set on the ground on the APX-100

SOUNDING

Radio is sounding.

located behind access panel L160.

Possible code combinations are

SENDING DATA

Radio is sending digital data.

0000-7777.

MODE 3/A Provides 4096 possible code

SENDING TIME

Radio is sending the current time.

combinations that can be selected

in-flight. Possible code combinations

STANDBY

Radio is in standby mode.

are 0000-7777.

SYNCING

Radio is synchronizing.

MODE C Provides altitude information obtained

from the FMC.

TIME SYNC

Synchronized time between radios

FAIL

has failed

3.53I.1

KIT-1C MODE 4 Computer. Provides a crypto-

UNSYNC

Radio is currently not synchronized.

secure mode of identification for the APX - 100 transpond-

XMIT READY

Radio has transmitted ECCM

er by relying on an encrypted interrogation. It utilizes two

preamble and is ready to transmit.

classified operational codes which are loaded directly into

the KIT-1C computer via a fill device through the Remote

ZEROIZED

Radio is being zeroized.

Selectable Fill Port in the aft avionics bay. Code selection

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.4

Change 3

TM 1-1520-251-10

is limited to A or B, which corresponds to the operational

NOTE

day. Other MODE 4 capabilities are:

• KIT - 1C is not required in the aircraft with

• When on the ground, the MODE 4 HOLD

the APX - 118 transponder.

enables the computer to save the last

• When the KIT-1C is not installed in the

MODE 4 codes for utilization on the next

aircraft, the MODE 4 selection will not be

power-up

shown on the MPDs.

• IDENT selection located on the MPD and

COMM panel enables IDENT transmis-

3.53K IMPROVED DATA MODEM (IDM)

sion to ID ownship on others’ radar

screens

NOTE

• Selectable MODE 4 audio cueing

Testing has shown that reception ranges are

• Selectable MODE 4 EUFD visual cueing

often degraded by five NM or more over

• Selectable EMERGENCY mode

those ranges where voice communication

can be received.

3.53J APX-118 TRANSPONDER

The APX - 118 provides automatic radar identification of

The aircraft is configured with a single IDM, which sup-

the aircraft to all suitably equipped stations. The trans-

ports the digital communication requirements for Long-

ponder receives, decodes, and responds to interrogation

bow Air Force Application Program Development

of the following modes:

(AFAPD) and TACFIRE protocols. The IDM serves as the

digital host interface between the aircraft’s radios and the

MODE 1

Provides 32 possible code

data bus for specific mission equipment. IDM communica-

combinations that can be selected

tions occur over a crewmember’s selected digital radio

in-flight. Possible code combinations

channel. If a UFD is installed, a digital radio is selected by

are: 00-03, 10-13, 20-23, 30-33, 40-43,

RTS. If a EUFD is installed, the digital is selected by the

50-53, 60-63, and 70-73.

IDM transmit select indicator. Management of the IDM is

MODE 2

Provides 4096 possible code

performed through the communications subsystem.

combinations. Possible code

combinations are 0000-7777.

MODE 3/A

Provides 4096 possible code

combinations that can be selected

in-flight. Possible code combinations

are 0000-7777.

MODE 4

Provides a crypto - secure mode of

identification by relying on an encrypted

interrogation. It utilizes two classified

operational codes which are loaded

directly into the transponder via a fill

device through the Remote Selectable

Fill Port in the aft avionics bay. Code

selection is limited to A or B, which

corresponds to the operational day.

MODE C

Provides altitude information obtained

from the FMC.

MODE S

Growth provisions only.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.5

TM 1-1520-251-10

3.53L LOAD MAINTENANCE PANEL (LMP)

The LMP (fig 3-62B) consists of a keypad, display, front

panel control switches, and knobs. It is co-located in the

RH aft avionics bay with the Remote Selectable Fill Port.

1=RADIOS

3=GUNS

2=CRYPTOS

4=ASE

1:4:

6PD

6IL

6RC

6SK

6WP

LBA5081

Figure 3-62B. Load Maintenance Panel

3.53L.1 LMP Capabilities. The LMP provides the fol-

be manually actuated on the ground for any further load-

lowing capabilities:

ing.

• Position pylons for loading stores.

NOTE

• Override the SQUAT SWITCH setting to simulate

ICS communication is the only recom-

airborne conditions for troubleshooting and testing

mended communication during PTT opera-

while on the ground.

tions. Do not use UHF at this time.

• Display and specify rocket types associated with

3.53L.3 Press-To-Talk (PTT) Button. The PTT button

each of the aircraft rocket zones.

enables the transfer of Crypto Net Variable(s) from the Fill

device to the KY-58. This CNV transfer can be initiated by

• Display and specify 30mm Gun rounds count.

keying the appropriate radio from either crewstation.

• Display and specify Chaff count.

3.53L.4 LMP Lighting. To save power, all LMP dis-

• Specify data download to the FM radios.

plays and lamps are extinguished while airborne. After

landing, pressing any LMP keypad button reactivates the

• Specify/verify data download to the HF radios.

LMP displays and status lights. This initial key press is not

• Specify data download to the HF Radio’s Crypto

interpreted as a data entry keystroke.

device

3.53L.5 RADIO Selections. LMP provides the capabil-

• Press-to-talk (PTT) and Remote Override (RMT

ity to select the individual radio formats (1= FM1; 2= FM2;

ORIDE) COMSEC pushbuttons.

3= HF) for data fills and HF data verification. Selection of

the ESC key returns the operator to the index.

3.53L.2 Remote Override (RMT ORIDE) Button. The

RMT ORIDE button disables MPD control and enables

a. FM1 and FM2 Radio Fill Selections. The LMP

front panel (KY-58) control capabilities for Crypto Net Vari-

provides for frequency hopping and COMSEC variable fill

ables loading purposes. The RMT ORIDE button is auto-

selections via LMP keyboard. Selections are available for

matically disabled when the aircraft is airborne and must

the following fill device capabilities:

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.6

Change 3

TM 1-1520-251-10

• Single Hopset Preset

3.53M.1 RTS Push Button. When the RTS button is

actioned the UFD cycles through the crewmembers se-

• Single Lockout Set Preset

lected radios, automatically bringing up the next radio as

• Single COMSEC variable

the active transmitter.

• Complete set of Hopset/Lockout Set/COMSEC

3.53M.2 LAST Button. When the LAST button is ac-

tioned the last frequency shown on the right side of the

Single Hopset/Lockout Set/COMSEC variable filling re-

UFD is exchanged with current frequency and call sign on

quires two separate fill devices. A complete set of Hopset/

the left side of the display. RTS radios in both crewstations

Lockout Set/COMSEC variable filling can be achieved

are tuned to the last set frequency when the LAST button,

with a single fill device. LMP display feedback is provided

on the radio selected, is actioned.

for function in-progress, function completion, function

PASS and function FAIL status.

3.53N UFD COMMUNICATIONS FORMAT

b. HF Radio Fill Selections. The LMP provides for

The UFD is capable of displaying a select subset of the

keyfill, datafill, and verification selections via LMP key-

current status of the communication system as shown in

board. A fill device is required for both the keyfill and data-

figure 3-62C.

fill. The following selections are available from the LMP

with the HF radio option selected:

• Keyfill load

• Datafill load

• Verify keys

• Verify data

The VERIFY KEYS selection provides status of the key

load for LP3 (cipher for ECCM) and ECCM. The VERIFY

LBA0401A

DATA selection provides status of the datafill load. A dis-

play of the HF MODE CHANGE FAIL message indicates

Figure 3-62C. UFD Format

when the HF failed to change modes properly when com-

manded to perform a keyfill, datafill, verify keys, or verify

data. The datafill load verification and return code in-

UFD communications symbology are:

cludes:

1. Radio identifier (VH, UH, F1, and F2).

• PRE OP (operable), ND (no data), NK (no

keys)

2. Squelch (OFF/ON) status (asterisk indicates

• LP3

OP, ND, NK

squelch on).

• ECCM OP, ND, NK

3. Currently tuned frequency/FH parameters.

• MAN OP, ND, NK

• ALE

OP, ND, NK

4. CALL SIGN assigned to the currently tuned fre-

quency.

• EMER OP, ND, NK

3.53L.6 LMP CRYPTO Selection. The LMP CRYPTO

5. Cipher (OFF/ON) status and Crypto Net Vari-

selection provides the capability to access the formats for

able (UHF, FM 1, and FM 2 only).

selecting the installed individual crypto devices for key

fills.

6. Guard (G) receiver (OFF/ON) (UHF only).

3.53M UP FRONT DISPLAY (UFD) COMMUNICATION

7. IDM Net Status.

CONTROLS

8. Last tuned frequency.

UFD communication controls are the RTS pushbutton and

LAST pushbutton.

9. Current time (Local or Zulu).

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.7

TM 1-1520-251-10

10. FM1 power setting Low (L), Normal (N), High

cause the RTS indicator to start over at the bottom of the

(H), Off (O) Status.

list.

11. Transponder Master Control (STBY/NORM/

NOTE

EMER) status.

When the preset (P) button is selected, the

12. XPNDR Mode 4 code. Presence of code indi-

WCA rocker switch is used to scroll up or

cates Mode 4 is ON.

down through the available presets.

13. Transponder Mode 3/A status and code.

3.53O.3 Preset (P) Button. The P button opens or

14. Transponder identifier.

closes the EUFD Preset Window on the EUFD display.

The EUFD Preset Window is used to select one of ten

15. Total fuel quantity.

single channel presets for tuning the selected voice radio.

16. Transmit/receive indicator. Filled triangle indi-

The P button is located on the right side of the EUFD dis-

cates radio selected for transmitting. Unfilled

play just below the brightness BRT knob.

triangle indicates radio is enabled for monitor-

3.53O.4 Preset Enter button. The Preset Enter

ing. The opposite crewmembers radio status

(down - left arrow) button is used to initiate a single chan-

triangles are on the right. Lack of a triangle indi-

nel tuning of the selected voice radio, based on the preset

cates the radio is not being used/monitored (pin

selected indicator (i.e. arrow symbol) in the EUFD Preset

pulled).

Window. The Preset Enter button is located to the right of

the P button, and above the Swap button.

3.53O ENHANCED UP FRONT DISPLAY (EUFD)

COMMUNICATION CONTROLS

3.53O.5 Swap Button. The Swap button permits the

exchange (”swapping”) of the standby frequency/mode,

EUFD communication controls (fig 3-62D) are as follows:

call sign, and net type with the primary frequency/mode,

call sign, and net type for the currently - selected radio as

3.53O.1 IDM Rocker Switch. The IDM switch permits

displayed in the EUFD. In addition to the swapping of

the operator to select a tuned radio for IDM data message

data, the system will automatically tune a frequency and

transmission. The IDM switch is located on the left side of

reconfigure the corresponding radio and IDM when the

the EUFD, centered, to the left of the RTS and WCA rock-

net type is L (Longbow AFAPD), or T (TACFIRE). The

er switches.

swap button, with two “turning arrows” is located to the

right of the stop watch button and below the preset enter

The IDM rocker permits cycling up or down through the

button. The standby frequency/mode, call sign, and net

displayed list of radios. Repeated momentary depression

type is located on the right side of the display and the pri-

of down selections beyond the last radio in the list will

mary frequency/mode, call sign, and net type for the cur-

cause the IDM indicator to start over at the top of the list.

rent RTS radio is displayed on the left side of the display.

Repeated momentary depression of up selections beyond

the first radio in the list will cause the RTS indicator to start

3.53P EUFD COMMUNICATIONS DATA FORMAT

over at the bottom of the list.

The EUFD displays a select subset of current status infor-

3.53O.2 Radio Transmit Select

(RTS) Rocker

mation of the communication subsystem, in the lower half

Switch. The RTS switch permits the operator to select a

of the display (fig 3-62D).

radio for voice transmission. The RTS switch is located on

the lower left side of the EUFD, to the right of the IDM

rocker switch, and below the WCA rocker switch.

ENG1 OUT

PRI HYD PSI

APU START

STAB FAIL

ENG2 CHIPS

The EUFD displays a filled - left - arrow character on the

GRBX TEMP

AFT FUEL LOW

left side of the format for that crewstation’s RTS indicator.

123.450

SABER

L2 125.075

250.000

A2L86 C2 G T8 F99.975

the opposite crewstation’s RTS indicator is displayed as a

F123

B2L99 C5 N L3

45.550

49.075

B2L86 C5

68.475

21.0000U

B2L86 C5 H

25.0535U

filled - right - arrow character. The RTS rocker permits cycl-

21.0000L

GO DATA ONLY

1240

XP 1200 B NORM

03:36:15 Z

ing up or down through the displayed list of radios. Re-

peated momentary depression of down selections beyond

15 14 13

the last radio in the list will cause the RTS indicator to start

LBA5031A

over at the top of the list. Repeated momentary depres-

sion of up selections beyond the first radio in the list will

Figure 3-62D. EUFD Data Format

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.8

Change 3

TM 1-1520-251-10

EUFD communications symbology, used in the display

14. Transponder Master Control (STBY/NORM/

fields (fig 3-62D) are numbered as follows:

EMER) status.

15. XPNDR Mode 4 code. Presence of code indi-

1. The EUFD displays a blocked diamond symbol

cates Mode 4 is On.

in the left - most field of the display for that

crewstation’s IDM (transmit/receive) indicator.

16. Transponder Mode 3/A status and code.

The opposite crewstation’s IDM indicator is dis-

17. Transponder identifier.

played as a filled diamond symbol. If both crew

members have the same radio selected for IDM

18. Total fuel quantity.

data transmission, then a filled block symbol will

be displayed.

3.53Q COMMUNICATIONS (COMM) PANEL

2. The EUFD displays a left - pointing arrow symbol

in the second field for that crewstation’s RTS

There is a COMM panel (fig 3-62E) in each crewstation to

(transmit/receive) indicator. The opposite

provide volume control and other functions for the respec-

crewstation’s RTS indicator is displayed as a

tive crewstation. Following is a description of the COMM

right - pointing arrow symbol. Dots (no arrow) in-

panel controls:

dicate that the radio is enabled for monitoring

(receiving) only.

3. Radio identifier (VHF, UHF, FM1, FM2 or HF ).

ÑÑ

4. Squelch Off/On status (asterisk indicates

ÑÑ

ÑÑÑÑÑÑÑ

ÑÑ

squelch On).

ÑÑ ÑÑÑÑÑÑÑ ÑÑ

5. Currently tuned frequency/FH parameters.

• When the UHF radio is in Frequency Hopping

mode, the UHF frequency displayed on the EUFD

is an ’F’ followed by the net number. When in the

Training mode, the UHF frequency displayed on

ÑÑÑ

ÑÑ

the EUFD is a ’T’ followed by the training net

ÑÑÑ

ÑÑ

number.

ÑÑÑ

ÑÑ

• When SINCGARS is in Frequency Hopping mode,

the Active Hopset is displayed in the correspond-

ing EUFD FM Current Frequency location in the

form Fxxx, where xxx is the Hopset ID.

ÑÑ

ÑÑÑÑÑÑÑ

ÑÑ

ÑÑÑÑÑÑÑ

ÑÑ

6. Call Sign (EUFD primary) currently assigned to

the currently tuned radio: MAN = manual tune;

LBA0072

GUARD = Guard tune

7. Cipher Off/On status and Crypto Net Variable

Figure 3-62E. Communications (COMM) Panel

(UHF, FM 1, FM 2, and HF only).

8. Guard (G) receiver Off/On (UHF only).

3.53Q.1 Volume Controls. The top row of five knobs

provide independent volume control for the respective ra-

9. IDM Net status, L = Longbow {AFAPD}, and T =

dios. Monitoring of the radios, VCR, and ADF audio can

Tacfire).

be disabled by pulling out the respective control knob

which removes the appropriate monitor status dot from

10. Standby (last tuned) frequency/FH parameters.

the EUFD, unless selected as the active transmitter.

11. Power status. IFM power status includes OFF,

LOW, NORM, HIGH. HF power status includes

3.53Q.2 Squelch (SQL) Switches. The SQL switches

LOW, MEDIUM, HIGH.

are momentary toggle switches that provide squelch on/

off capability. There is a SQL switch for each radio, lo-

12. Current time (Local or Zulu)).

cated directly below the corresponding volume control

13. HF radio status (Table 3-3B).

knob.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.9

TM 1-1520-251-10

3.53Q.3 MASTER Control. The MASTER control pro-

3.53R EMERGENCY PANEL

vides the capability to adjust the audio level (volume) of all

signals associated with the communication subsystem

The EMERGENCY panel (fig 3-62F) communications

and controls the applicable crewstation helmet and wing

functions provides for tuning the UHF radio to the GUARD

connection volume levels.

frequency, selection of the transponder (XPNDR) emer-

gency mode, and zeroizing classified data.

3.53Q.4 Sensitivity (SENS) Control. The SENS con-

trol provides the capability to adjust the audio threshold

level when the ICS mode switch is in the VOX position.

EMERGENCY

EMERG

HYD

The system only transmits when voice level exceeds the

GUARD

XPNDR

ZEROIZE

threshold setting of the SENS adjustment. To increase

sensitivity rotate control clockwise.

3.53Q.5 ICS Mode Switch. The ICS mode switch pro-

vides selection of the audio keying system for commu-

nication between crew stations. Following are the three

LBA2448

modes that can be selected with the ICS switch:

Figure 3-62F. EMERGENCY Panel

a. Push-To-Talk (PTT). The PTT position allows

communication only while the ICS PTT switch is being de-

pressed.

3.53R.1 GUARD Lighted Button. Pressing this button

tunes the UHF radio to its guard frequency, which is dis-

b. VOX. The VOX position allows communication

played on the EUFD, and causes the system to automati-

between crewmembers only when their voice levels ex-

cally select (RTS) the UHF radio. Pressing the GUARD

ceed the threshold level as set with the SENS control.

button again commands the system to swap the primary

and standby locations of the EUFD: 1) the guard frequen-

cy is swapped into the EUFD’s standby frequency loca-

c. HOT MIC. The HOT MIC position allows continu-

tion; and 2) the radio and/or preset - net data previously in

ous communication between crewmembers.

the standby location is swapped back into the EUFD’s pri-

mary location.

3.53Q.6 IDENT Switch. The IDENT switch allows the

transponder to be placed in IDENT mode. This switch per-

3.53R.2 XPNDR Lighted Button. Pressing this button

forms the same function as the IDENT option label located

sets a code of 7700 in mode 3/A. The XPNDR Mode 3/A

on the MPD XPNDR page.

button has to be moded ON and XPNDR MASTER button

can be in NORM or STBY prior to activating the XPNDR

3.53Q.7 AUX Controls

emergency button. The EUFD provides a status of 7700

EMER to indicate that emergency transponder mode has

a. Identification, Friend or Foe (IFF). The IFF

been selected. To exit the emergency transponder mode,

knob provides independent volume control of the IFF

press the XPNDR button again, which will extinguish the

MODE 4 audio.

light. After deactivation, the system does not reset any

codes until they are entered manually or with the Data

b. Radar/Laser Warning Receiver (RLWR). The

Transfer Cartridge (DTC).

RLWR knob provides independent volume control of the

RLWR audio.

3.53R.3 ZEROIZE Switch. The ZEROIZE switch is ac-

tioned by first pulling it up and out of the locked position,

c. Air - To - Air (ATA). This knob is not currently

next to the forward position, and then returning the switch

used.

to the locked or after position to complete the zeroization

process. Actioning the ZEROIZE switch zeroes-out the

d. Video Cassette Recorder (VCR). The VCR

following classified data:

knob provides independent volume control of the VCR

playback audio.

a. COMSEC variables

e. Automatic Direction Finder (ADF). The ADF

b. FM1 and FM2 Hopsets

knob provides independent volume control of the ADF au-

dio.

c. FM1 and FM2 lockout sets

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.10

Change 3

TM 1-1520-251-10

d. HF radio

3.53S CYCLIC GRIP COMMUNICATIONS CONTROLS

e. HQ1 WOD or HQ2 MWOD from radio, and SP

A three position ICS switch on the cyclic control grips pro-

Non - Volatile Memory (NVM)

vide the crew with ICS, PTT and RTS functionality.

f. All Signal Operating Instructions (SOI) tables/data

3.53T ICS/RADIO FOOT CONTROLS

in Data Processor (DP) NVM

g. Mode 4 (KIT-1C)

ICS/Radio foot controls are identical for both crew stations

and are located on the forward crew station deck. The ra-

h. IDM network parameters

dio PTT foot control is located on the left side of the crew

station. The ICS PTT foot control is located on the right

i. IDM team member indications in the IDM and DP

side of the crew station.

NVM

3.53U COMMUNICATION SUBSYSTEM DISPLAY

j. Tactical Situation Display (TSD) Waypoints, Tar-

FORMAT OVERVIEW

gets/Threats, and Control Measures

The Communication Subsystem controls and displays are

NOTE

accessed through the MPDs in each crew station. The

• Emergency zeroize does not erase clas-

paging tree (fig 3-62G) illustrates the structure of the COM

sified data in the FCR and DTC

subsystem pages.

COM

PRESET

ORIG

MSG

SOI

XPNDR

UHF

MAN

NET

EDIT

SEND

REC

PRESET

MBR

EXPND

ERF

SET

SUFFX

MODEM

DIR

FREE

CURRENT

WOD

FMT

SET

ATHS

TEXT

MISSION

SELF

NETS

CALL

PRESETS

SET

ZERO

ADDRESS

(ALE)

(ECCM)

ADDRESS

Available from MENU Page

LBA5067B

Figure 3-62G. COM Subsystem Paging Tree

3.53V COMMUNICATIONS PROTOCOL AND

3.53V.1 Originator ID. The unique digital identification of

NETWORKS

the ownship or a formal leadership role entity associated with

the ownship. Digital ID’s include: 1) LONGBOW and 2) TAC-

The following communications protocol and network ter-

FIRE.

minologies are used throughout this section:

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.11

TM 1-1520-251-10

NOTE

An entity is any single platform, system,

leadership role position, staff role position,

etc. that has an assigned digital ID relation-

ship.

3.53V.2 Network. A functionally related group of mem-

bers that are assigned and configured with a common: 1)

radio type; 2) SC frequency, or HOPSET/ECCM ID; 3) call

sign; 4) crypto key, when required; 5) protocol, for digital

networks.

3.53V.3 Member. A member, or subscriber, is a single

member or station assigned to a network. Each digital

member entity is assigned a unique digital identification.

Digital ID’s include: 1) LONGBOW and 2) TACFIRE.

LBA5176

3.53V.4 Team Member. A team member is a network

Figure 3-62H. COM Page

member designated to receive Longbow or Tacfire team

messages. Each digital network may contain up to 16

Buttons on the COM page are described below:

team members (including ownship).

• T1

DAY button

• T2

SOI button

• T3

XPNDR button

3.53V.5 Primary Member. A primary member is a net-

• T4

UHF button

work member designated to receive primary messages

from the TSD RPT page over a Longbow net. There are a

• T5

FM button

maximum of 8 primary members (including the ownship)

• T6

HF button

per digital network (1 - 10). A net member does not have to

• L1-L5

PRESET buttons

be a team member to be a primary member.

•

PRESET DIR button

• R1-R5

PRESET buttons

• R6

XPNDR MASTER button

3.53W COMMUNICATIONS (COM) PAGE

• B2

MAN button

• B3

FALL BACK button

The COM page (fig 3-62H) is used to manage up to eight

• B4

ORIG ID button

preset - networks. Longbow and TACFIRE protocols may

• B5

MSG REC button

only be used with preset - nets one through eight (1-8).

• B5

MSG SEND button

Any of the eight COM page preset - nets may be replaced

through using the PRESET DIRectory’s preset replace

3.53W.1 DAY Button. The DAY button provides the ca-

function. The PRESET DIR is a database capable of con-

pability to toggle between the two SOI days of the SOI

taining up to 60 Longbow, TACFIRE, and voice - only pre-

data that is displayed within the communications subsys-

set database items with up to 15 members each. Select-

tem. The two SOI days are numbers with a range of 1- 10.

ing the COM subsystem button or the COM page button

When the operator actions the DAY button the Display

from the MENU page displays the COM page. Various

Processor updates the SOI data to the alternate day. Se-

communication subsystem status windows and control

lecting the button again will toggle the data back to the

selections are provided by bezel buttons located along the

original day. The SOI day number is uploaded to the Dis-

edges of the MPD. The paging options at the top of the

play Processor from the DTC as part of the Presets

page provide access to subsystem functional pages.

upload.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.12

Change 3

TM 1-1520-251-10

3.53W.2 SOI Page Button. The SOI button displays

NOTE

the SOI page.

The pilot and CPG floor, push to talk

•

switches are inoperative when operating

the CIU in the Fall Back mode.

3.53W.3 XPNDR Page Button. The XPNDR button

displays the XPNDR page.

• Operating in the Fall Back mode requires

a TEMPEST microphone to communi-

cate on either intercom or the the radios.

3.53W.4 UHF Page Button. The UHF button displays

the UHF page.

The following occurs when Fall Back is initiated:

• Pilot is RTS to the UHF radio.

3.53W.5 FM Page Button. The FM page button dis-

plays the FM page.

• UHF radio will go secure if a KY- 58 is installed and

turned ON. If the FILL position selected is not

loaded with a CNV, only plain radio reception is

3.53W.6 HF Page Button. The HF page button dis-

available. Attempting to transmit will result in a

plays the HF page.

steady tone.

• CPG is RTS to the VHF radio.

3.53W.7 PRESET Buttons. The PRESET (1-10) but-

• Pilot and CPG radio monitor levels are defaulted

tons provide the capability to tune the VHF, UHF, FM 1,

to a fixed level.

FM 2, and HF radios. The VHF, UHF, FM 1, and FM 2 but-

tons also provide configuration control for the IDM chan-

• ICS communication between the Pilot and CPG is

nels. The PRESET buttons are not selected upon display

moded to Hot MIC (TEMPEST MIC Only).

of the COM page. The PRESET buttons each contain two

lines of text information. The first line contains the Unit ID,

3.53W.12 MSG REC Page Button. The MSG REC but-

IDM net protocol, and IDM net number. The second line

ton displays the message receive (MSG REC) page.

contains the Radio Status. Presets 1-8 support “L” digital

3.53W.13 MSG SEND Page Button. The MSG SEND

net configurations.

button displays the MSG SEND page.

3.53W.14 OWNSHIP Status Window. The OWNSHIP

3.53W.8 PRESET DIR Button. The PRESET DIR page

Status window (fig 3-62H) displays the ownship’s global

button displays the PRESET DIR page. See paragraph

COM and IDM data. Before flight reference permits the

3A.32.

crew to check the OWNSHIP’s IDM-COM data at one

single top level location without the requirement to page

through the ORIG ID Page options following a DTU Load

3.53W.9 XPNDR MASTER Button. The XPNDR MAS-

with the IDM in OPER. The OWNSHIP Status window in-

TER button toggles between Standby (STBY) and Normal

cludes the following data fields:

(NORM) modes.

LB (Longbow) Digital ID

•

• TF (TACFIRE) Digital ID, Team ID, and Broadcast

3.53W.10 MAN Page Button. The MAN button dis-

plays the MAN page.

3.53W.15 ORIG ID Page Button. The ORIG ID page

button displays the ORIG ID page

(paragraph

3A.253.53X).

3.53W.11 FALL BACK Button. The FALL BACK but-

ton is selected upon a CIU failure as indicated by the

3.53X ORIG ID Page.

EUFD advisory “GO FALLBACK”. Selection of the FALL

BACK button will prompt for a YES or NO confirmation to

initiate Fall Back. However, the FALL BACK button will

The ORIG ID page (fig 3-62I) is accessed by selecting the

not prompt for confirmation to exit Fall Back. Once Fall

ORIG ID page button located on the COM page. The

Back is initiated the EUFD advisory will change to “FALL-

ORIG ID page provides a means of editing the originator/

BACK”.

ownship’s callsign and digital identification for the IDM

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3-66.13

TM 1-1520-251-10

protocols. Upon display of the page, the DIGITAL ID

the sender’s ID when transmitting Longbow messages.

LONGBOW/TACFIRE button is selected.

The keyboard label displays LONGBOW ID and accepts a

one or two - character input between 0 - 39, A - Z, 1A - 1Z,

2A - 2Z, or 3A - 3I.

3.53X.3 TACFIRE ORIG ID Button. The TACFIRE

ORIG ID data entry button permits editing the IDM origina-

tor ID for the Tacfire protocol. This ID is used as the send-

er’s ID when transmitting Tacfire messages. The key-

board label displays TACFIRE ID and accepts a one or

two character input between 0 - 39, A - Z, 1A - 1Z, 2A - 2Z,

or 3A - 3I.

NOTE

The TACFIRE TEAM ID has to initially be

entered as a member in at least one TAC-

FIRE preset-net prior to the TACFIRE

TEAM ID being entered through the ORIG

ID page.

3.53X.4 TACFIRE TEAM ID Button. The TACFIRE

TEAM ID data entry button permits editing the originator’s

LBA5177

Tacfire Team ID. This ID represents the TACFIRE team

address associated with ownship’s IDM. The keyboard la-

bel displays TEAM ID and accepts a one or two character

Figure

3-62I.

ORIG ID Page LONGBOW/TACFIRE

input between 0 - 39, A - Z, 1A - 1Z, 2A - 2Z, or 3A - 3I.

Buttons on the ORIG ID page, LONGBOW/TACFIRE se-

NOTE

lected:

• L1

CALL SIGN button

The TACFIRE BCST ID has to initially be

entered as a member in at least one TAC-

• R1

LONGBOW ORIG ID button

FIRE preset-net prior to the TACFIRE

• R2

TACFIRE ORIG ID button

TEAM ID being entered through the ORIG

ID page.

• R3

TACFIRE TEAM ID button

• R4

TACFIRE BCST ID button

3.53X.5 TACFIRE BCST ID Button. The TACFIRE

BCST ID data entry button permits editing the IDM’s

• B4

ORIG ID button

Broadcast ID for the Tacfire protocol. This ID represents

• B5

MSG REC button

the TACFIRE broadcast address associated with the origi-

nator’s aircraft. The keyboard label displays BROAD-

• B6

MSG SEND button

CAST ID and accepts a one or two character input be-

3.53X.1 CALL SIGN Button. The originator’s CALL

tween 0 - 39, A - Z, 1A - 1Z, 2A - 2Z, or 3A - 3I.

SIGN data entry button permits editing, and creation of,

the originator’s call sign as displayed in the OWNSHIP

3.53Y COM PAGE - PRESET SELECTED

Status window.

3.53X.2 LONGBOW ORIG ID Button. The LONG-

The COM page (fig 3-62J) preset status window displays

BOW ORIG ID data entry button permits editing the IDM

the data associated with the preset that is currently se-

Originator ID for the Longbow protocol. This ID is used as

lected.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.14

Change 3

TM 1-1520-251-10

3.53Y.1 NET Page Button. The NET button displays

the net member page. See paragraph 3A.33.

3.53Y.2 PRESET EDIT Page Button. The PRESET

EDIT button displays the preset edit page. See paragraph

3.53N.

3.53Y.3 COM PRESET Status Window. The COM

PRESET status window data is displayed in the following

field order:

• Unit ID

• Call Sign

• DM Type and IDM Preset - Net Number

• VHF Frequency

• UHF CNV status

• UHF HQ Net number

• UHF Single Channel Frequency

LBA5178

• FM1 CNV status

Figure 3-62J. COM Page (PRESET Selected)

•

FM1 SINC net number

The following unique buttons are displayed on the COM

• FM1 Single Channel Frequency

page when a preset is selected:

• FM2 CNV status

• T2

RADIO VHF button

• FM2 SINC HOPSET number

• T3

RADIO UHF button

• FM2 CNV status

• T4

RADIO FM1 button

• HF CNV status

• T5

RADIO FM2 button

• T6

RADIO HF button

• HF ECCM

• B4

NET page button

• HF ALE

• B6

PRESET EDIT page button

• HF PRE

NOTE

• HF MAN (Upper/Lower)

Each specific RADIO T2-T6 buttons are

displayed anytime the selected preset con-

The Primary frequency is displayed in white and desig-

tains valid data for the radio type.

nated by a white arrow.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.15

TM 1-1520-251-10

3.53Z MAN PAGE

• R4

HF XMIT EMISSION (USB/LSB) button

• B3

VHF WB/NB antenna button

The MAN page (fig 3-62K) provides the following capabili-

• B4

VHF TONE button

ties:

• B5

UHF WB/NB antenna button

• Tune the VHF and/or UHF guard frequency

• B5

UHF TONE button

• Manually tune the VHF, UHF, FM1, FM2, and HF

radios through frequency data input

3.53Z.1 VHF GUARD Button. The VHF GUARD but-

ton provides the capability to rapidly tune the VHF radio to

• Select antenna bandwidths for the UHF and VHF

the guard frequency.

radios

• UHF/VHF radio test tone button access

3.53Z.2 UHF GUARD Button. The UHF GUARD but-

ton provides the capability to rapidly tune the UHF radio to

the guard frequency.

3.53Z.3 VHF FREQ Button. The VHF FREQ data entry

button provides the capability to manually tune the VHF

radio (108.000 through 151.975 MHz at 0.025 spacing)

using the KU. The KU label display is VHF FREQ and the

selection of the KU’s ENTER button commands the VHF

radio to tune to the manually set frequency.

3.53Z.4

UHF FREQ Button. The UHF FREQ data

entry button provides the capability to manually tune the

UHF radio (225.000 through 399.975 MHz at 0.025 spac-

ing steps) using the KU. The KU label display is UHF

FREQ and the selection of the KU’s ENTER button com-

mands the UHF radio to tune to the manually set frequen-

cy.

3.53Z.5 FM1 FREQ Button. The FM1 FREQ data entry

button provides the capability to manually tune the FM1

radio (30.000 through 87.975MHz at 0.025 MHz steps)

LBA5090

using the KU. The KU label display is FM1 FREQ and the

selection of the KU’s ENTER button commands the FM1

Figure

3-62K.

MAN Page

radio to tune to the manually set frequency.

3.53Z.6 FM2 FREQ Button. The FM2 FREQ data entry

The MAN page contains the following unique buttons:

button provides the capability to manually tune the FM1

radio (30.000 through 87.975MHz at 0.025 MHz steps)

• T2

VHF GUARD button

using the KU. The KU label display is FM2 FREQ and the

• T3

UHF GUARD button

selection of the KU’s ENTER button commands the FM2

• L1

VHF FREQ button

radio to tune to the manually set frequency.

• L2

UHF FREQ button

3.53Z.7 HF RECV FREQ Button. The HF RECV FREQ

• L3

FM1 FREQ button

data entry button provides the capability to manually tune

• L4

FM2 FREQ button

the HF radio receive frequency (2.0000 through 29.9999

• R1

HF RECV FREQ button

MHZ at 0.1 kHz steps). The KU label display is HF RECV

FREQ and the selection of the KU’s ENTER button com-

• R2

HF RECV EMISSION (USB/LSB) button

mands the HF radio to tune to the manually set HF RECV

• R3

HF XMIT FREQ button

frequency.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.16

Change 3

TM 1-1520-251-10

3.53Z.8 HF RECV EMISSION Button. The HF RECV

3.53Z.13 UHF WB/NB Button. UHF WB/NB button

EMISSION button provides the capability to select the HF

provides the capability to toggle between the WB (Wide

radio receive emission mode for the manual receive fre-

Bandwidth, ±35KHz deviation from the channel frequency

quency. The button provides the following HF RECV

allowing more noise or crosstalk from frequencies within

EMISSION multi - state options:

.025MHz ) and NB (Narrow Bandwidth allows ±12KHz

deviation from the channel frequency) modes. The default

• AME to select Amplitude Modulation Equivalent.

state upon power - up for the VHF bandwidth is narrow.

• CW to select Continuous Wave.

The UHF bandwidth is automatically set to WB option

when the UHF mode is set to the UHF CIPHER and to NB

• LSB to select Lower Sideband.

when the UHF mode is set to the UHF PLAIN. Upon pow-

• USB to select Upper Sideband.

er - up, the UHF bandwidth is determined by the state of

the UHF KY - 58.

Upper Sideband is the default receive emission mode

3.53Z.14 UHF TONE Button. The UHF TONE momen-

upon power - up. Changing the receive emission mode of

tary button provides the capability to enable the UHF Ra-

the HF radio automatically changes the transmit emission

dio (ARC - 164) Test Tone. Selection of the UHF TONE

mode to the same value.

button transmits an over the air radio generated tone. The

tone is used for test and problem isolation.

3.53Z.9 HF XMIT FREQ Button. The HF XMIT FREQ

data entry button provides the capability to manually tune

3.53AA COM PAGE - PRESET AND RADIO

the HF radio receive frequency (2.0000 through 29.9999

SELECTED

MHZ at 0.1 kHz steps). The KU label display is HF XMIT

FREQ and the selection of the KU’s ENTER button com-

The COM page (fig 3-62L) specific TUNE VHF, FM1, FM2,

mands the HF radio to tune to the manually set HF XMIT

or HF button options are displayed following the selection

frequency.

of a RADIO option button.

3.53Z.10 HF XMIT EMISSION Button. The HF XMIT

EMISSION button provides the capability to select the HF

radio receive emission mode for the manual receive fre-

quency. The button provides the following HF XMIT EMIS-

SION multi - state options:

• AME to select Amplitude Modulation Equivalent.

• CW to select Continuous Wave.

• LSB to select Lower Sideband.

• USB to select Upper Sideband.

Upper Sideband is the default receive emission mode

upon power - up. Changing the receive emission mode of

the HF radio automatically changes the transmit emission

mode to the same value.

3.53Z.11 VHF WB/NB Button. VHF WB/NB button

provides the capability to toggle between the WB (Wide

Bandwidth, 18KHz) and NB (Narrow Bandwidth, 9.5KHz)

modes. The default state upon power-up for the VHF

bandwidth is narrow.

3.53Z.12 VHF TONE Button. The VHF TONE momen-

tary button provides the capability to enable the VHF Ra-

LBA5179

dio (ARC - 186) Test Tone. Selection of the VHF TONE

button transmits an over the air radio generated tone. The

Figure

3-62L.

COM Page Preset and Radio UHF

tone is used for test and problem isolation.

Selected

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.17

TM 1-1520-251-10

The COM page with preset selected contains the follow-

• B6

TUNE VHF SC button

ing unique buttons:

Selecting the TUNE VHF SC button tunes the VHF radio

• T2

RADIO VHF button

to the frequency displayed in the VHF SC status field of

• T3

RADIO UHF button

the PRESET STATUS window.

• T4

RADIO FM1 button

3.53AA.2 PRESET RADIO UHF Button. The selection

• T5

RADIO FM2 button

of the PRESET RADIO UHF button will command the dis-

• T6

RADIO HF button

play of the TUNE UHF button options.

NOTE

•

TUNE UHF FH button

The FM radios can take as long as 10.0 sec-

• B6

TUNE UHF SC button

onds to completely tune/configure to a COM

preset. the FM radios are available for voice

a. TUNE UHF FH Button. Selecting the TUNE UHF

transmission within 2.0 seconds of tuning

FH button tunes the UHF radio to the HQ NET ID as dis-

but the transmissions may be broken.

played in the UHF HQ status field of the PRESET STA-

TUS window.

a. TUNE RADIO Command IDM - RADIO Configu-

ration Updates. When a VHF, UHF, FM1, or FM2 TUNE

RADIO button assigned to an IDM preset - net is selected

b. TUNE UHF SC Button. Selecting the TUNE UHF

the following radio and IDM processes occur:

SC button tunes the UHF radio to the frequency displayed

in the UHF SC status field of the PRESET STATUS win-

• The radio will tune - configure

dow.

• The radio channel in the IDM will be configured

when the preset has an IDM protocol assigned

3.30AA.3 PRESET RADIO FM1 or FM2 Button. The

• The Crypto in the KY will be configured if the preset

selection of the PRESET RADIO FM1 or FM2 button will

has a Crypto Net Variable displayed

command the display of the TUNE FM1 or FM2 button op-

tions.

b. TUNE RADIO Command EUFD Radio Status

Line Update. When any one of the TUNE RADIO option

• B4

TUNE FM1 or FM2 FH button

buttons is selected, the EUFD’s preexisting primary radio

• B5

TUNE FM1 or FM2 FH/M button

status line is moved to the EUFD’s standby area and the

• B6

TUNE FM1 or FM2 SC button

EUFD primary status is updated with the applicable PRE-

SET STATUS windows:

a. TUNE FM1 or FM2 FH Button. Selecting the

• Call Sign

TUNE FM1 or FM2 FH button tunes the specific FM radio

to the SINC FH using the NET ID displayed in the FM1 or

• Frequency

FM2 SINC status field of the PRESET STATUS window.

• Frequency - Hop/ECCM

• IDM Protocol

b. TUNE FM1 or FM2 FH/M Button. Selecting the

TUNE FM1 or FM2 FHM button tunes the specific FM ra-

• Crypto Status Fields

dio to the SINC FH/M mode using the NET ID that is dis-

played in the FM1 or FM2 SINC status field of the PRE-

c. TUNE RADIO Command PRESET Button Up-

SET STATUS window. The FH/M tune makes the aircraft

date. When any one of the TUNE RADIO option buttons

the master of the SINCGARS NET.

is selected, the radio tuned will be displayed in the second

line of the selected PRESET button.

c. TUNE FM1 or FM2 SC Button. Selecting the

3.53AA.1 PRESET RADIO VHF Button. The selection

TUNE FM1 or FM2 SC button tunes the specific FM radio

of the PRESET RADIO VHF button will command the dis-

to the frequency displayed in the FM1 (or FM2) SC status

play of the TUNE VHF option button.

field of the PRESET STATUS window.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.18

Change 3

TM 1-1520-251-10

3.53AA.4 PRESET RADIO HF Button. The selection

of the PRESET RADIO HF button will command the dis-

play of the TUNE HF button options.

• B3

TUNE HF PRE button

• B4

TUNE HF ALE button

• B5

TUNE HF ECCM button

• B6

TUNE HF SC button

NOTE

An IDM preset - net tuned to a HF RADIO

TUNE button option will change that preset -

net to voice only.

a. TUNE HF PRE Button. Selecting the TUNE HF

PRE button tunes the HF radio to preset 1-20 as displayed

LBA5092

in the HF PRE status field of the PRESET STATUS win-

dow.

Figure 3-62M. PRESET EDIT Page (UNIT Selected)

b. TUNE HF ALE Button. Selecting the TUNE HF

The PRESET EDIT page contains the following unique

ALE button tunes the HF radio to the HF ALE Channel

buttons when the EDIT grouped option is UNIT:

(1-5) that is displayed in the HF ALE Status Field of the

PRESET STATUS window.

• T2 - T5

EDIT buttons

• L1

EDIT UNIT ID button

• L2

EDIT CALL SIGN button

c. TUNE HF ECCM Button. Selecting the TUNE

HF ECCM button tunes the HF radio to the HF ECCM Net

• L4

EDIT PRIMARY RADIO/MODE button

displayed in the HF ECCM Status Field of the PRESET

• R6

MODEM page button

STATUS window.

3.53AB.1 EDIT Buttons. The EDIT buttons provide the

capability to select a specific element of a preset’s COM

d. TUNE HF SC Button. Selecting the TUNE HF

data to edit.

SC button tunes the HF radio to the HF SC frequencies for

both the upper (U) and lower (L) sidebands as displayed

3.53AB.2 EDIT UNIT ID Button. The EDIT UNIT ID

in the HF SC Status Field of the PRESET STATUS win-

button changes the preset Unit ID.

dow.

3.53AB.3 EDIT CALL SIGN Button. The EDIT CALL

SIGN button changes the preset call sign.

3.53AB PRESET EDIT PAGE

3.53AB.4 EDIT PRIMARY RADIO Button. The EDIT

PRIMARY RADIO button provides the capability to

The PRESET EDIT page (fig 3-62M) provides the capabil-

change the radio-frequency/radio-mode association of

ity to modify the currently selected preset as displayed in

the Primary Radio indicator arrow (i.e. non - solid arrow) in

the PRESET STATUS window. Along with the Unit ID,

the PRESET STATUS window.

those items currently displayed for edit are displayed in

full intensity in the PRESET STATUS window, as opposed

3.53AB.5 MODEM Page Button. The MODEM button

to partial intensity.

displays the MODEM page. See paragraph 3A.313.53AC.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.19

TM 1-1520-251-10

3.53AB.6 PRESET EDIT Page Button. The PRESET

3.53AB.10 EDIT HQ NET Button. The EDIT HQ NET

EDIT page button displays the PRESET EDIT page (fig

button changes the HAVEQUICK net number of the preset

3-62N).

in the range of 00.000 through 99.975.

3.53AB.11 EDIT UHF FREQ Button. The EDIT UHF

FREQ button changes the UHF element of the preset to a

frequency in the range of 225.000 through 399.985 MHz

in increments of 5 KHz.

LBA5093

Figure 3-62N. PRESET EDIT Page (V/UHF Selected)

LBA5094

The PRESET EDIT page contains the following unique

buttons when the EDIT grouped option is V/UHF:

Figure 3-62O. PRESET EDIT Page (FM Selected)

• L1

EDIT VHF FREQ button

NOTE

• R1

EDIT UHF MODE button

The PRESET EDIT FM selected page but-

• R2

UHF CNV selection button

tons (fig 3-62O) for FM1 and FM2 are func-

• R3

EDIT HQ NET button

tionally identical and the definitions below

apply to both radios.

• R4

EDIT UHF FREQ button

• R6

MODEM button

3.53AB.12 EDIT FM1/FM2 MODE Button. The EDIT

3.53AB.7 EDIT VHF FREQ Button. The EDIT VHF

FM 1/FM2 MODE button provides the capability to change

FREQ button changes the VHF element of the preset to a

the UHF Crypto Mode by toggling between Plain or Cipher

frequency in the range of 108.000 through 155.995, in in-

mode for the selected preset.

crements of 5 KHz (except for invalid 8.33 KHz channels).

3.53AB.13 EDIT FM1/FM2 CNV Button. The EDIT

3.53AB.8 EDIT UHF MODE Button. The EDIT UHF

FM1/FM2 CNV button allows changing the Crypto Net

MODE button provides the capability to change the UHF

Variable for the selected preset from 1-6.

Crypto Mode by toggling between Plain or Cipher mode

for the selected preset.

3.53AB.14 EDIT FM1/FM2 HOPSET Button. The

3.53AB.9 EDIT UHF CNV Button. The EDIT UHF CNV

HOPSET button provides six HOPSET button options.

button allows changing the Crypto Net Variable, for the se-

The hopset selected determines the radio FH characteris-

lected preset, from 1-6.

tics (hopping rate, frequencies and frequency order).

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.20

Change 3

TM 1-1520-251-10

3.53AB.15 EDIT FM1/FM2 FREQ Button. The EDIT

3.53AB.19 EDIT HF PRESET CHAN Button. The

FM1/FM2 FREQ button changes the FM1/FM2 for the se-

EDIT HF PRESET CHAN button changes the HF Preset

lected preset to a frequency in the range of 30.000

channel number of the preset in the range of 1-20.

through 87.995, in increments of 5 KHz.

3.53AB.20 EDIT HF ALE NET Button. The EDIT HF

3.53AB.16 EDIT FM1/FM2 DATA SWAP Button. The

ALE NET button changes the HF ALE net number of the

EDIT FM1/FM2 DATA SWAP button exchanges the FM1

preset in the range of 1-20.

and FM2 data displayed on the PRESET EDIT FM se-

lected page.

3.53AB.21 EDIT HF ECCM NET Button. The EDIT HF

ECCM NET button changes the HF ECCM net number of

3.53AB.17 EDIT HF CRYPTO MODE Button. The

the preset in the range of 1-12.

EDIT HF CRYPTO MODE button (fig 3-62P) provides the

capability to change the HF Crypto Mode by toggling be-

3.53AB.22 EDIT HF RECV FREQ Button. The EDIT

tween Plain or Cipher mode for the selected preset.

HF RECV FREQ button changes the HF manual receive

frequency of the preset in the range of 2.0000 through

29.9999 MHz, in increments of 100 Hz.

3.53AB.23 EDIT HF RECV EMISSION Button. The

EDIT HF RECV EMISSION button changes the HF manu-

al receive emission of the preset between LSB (Lower

Side Band), USB (Upper Side Band), CW (Continuous

Wave), or AME (Amplitude Modulation Equivalent).

3.53AB.24 EDIT HF XMIT FREQ Button. The EDIT HF

XMIT FREQ button changes the HF manual transmit fre-

quency of the preset in the range of 2.0000 through

29.9999 MHz, in increments of 100 Hz.

3.53AB.25 EDIT HF XMIT EMISSION Button. The

EDIT HF XMIT EMISSION button changes the HF manual

transmit emission of the preset between LSB (Lower Side

Band), USB (Upper Side Band), CW (Continuous Wave),

or AME (Amplitude Modulation Equivalent).

3.53AC MODEM PAGE BUTTON

LBA5095

The MODEM page button displays the MODEM page.

The MODEM page provides the capability to modify the

Figure

3-62P.

PRESET EDIT Page (HF Selected)

IDM net that is assigned to the PRESET button. The MO-

DEM page is accessed by selecting the MODEM page

3.53AB.18 EDIT HF CRYPTO CNV Button. The EDIT

button from the PRESET EDIT or NET page. The selected

HF CRYPTO CNV button allows changing the Crypto Net

preset’s current IDM type L, T, I, F, or NONE determines

Variable for the selected preset from 1-6.

the protocol displayed on the MODEM page.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.21

TM 1-1520-251-10

3.53AC.1 PROTOCOL Button. The PROTOCOL but-

b. RETRIES Button. The RETRIES button pro-

ton (fig 3-62Q) provides the capability to select LONG-

vides the capability to select the number of retransmis-

BOW, TACFIRE, or NONE.

sions the IDM performs (2, 1, or 0) with no acknowledge-

ment from a subscriber.

c. BAUD RATE Button. The BAUD RATE button

provides the following baud rate options:

• 16000

•

8000

• 2400

• 1200

•

600

• 300

•

150

• 75

3.53AC.3 TACFIRE PROTOCOL. When the multi-state

PROTOCOL button (fig 3-62R) is selected to TACFIRE, the

MODEM page displays the TACFIRE PROTOCOL buttons.

LBA5096

Figure 3-62Q. MODEM Page With LONGBOW

Selected

NOTE

The Longbow Protocol used in the IDM is

also known as the Air Force Applications

Program Development (AFAPD)

3.53AC.2 LONGBOW PROTOCOL. When the multi-

state PROTOCOL button is selected to LONGBOW, the

following unique buttons are displayed:

• AUTO ACK button

• RETRIES button

• BAUD RATE button

LBA - 5097

a. AUTO ACK Button. The AUTO ACK button pro-

vides the capability to enable or disable the auto acknowl-

Figure 3-62R. MODEM Page With TACFIRE

edge mode.

Selected

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.22

Change 3

TM 1-1520-251-10

When the TACFIRE button is selected, the following

unique buttons are displayed:.

• RETRIES button

• BAUD RATE button

• AUTH button

• BLOCK button

• PREAMBLE button

• MONITOR button

• XMIT RADIO button

a. RETRIES Button. The RETRIES button pro-

vides the capability to select the number of retransmis-

sions the IDM performs (2, 1, or 0) with no acknowledge-

ment from a subscriber.

b. BAUD RATE Button. The BAUD RATE button

(fig 3-62S) provides baud rate options of:

• 1200

• 600

• 300

LBA - 5098

• 150

Figure 3-62S. MODEM Page With TACFIRE and

• 75

BAUD RATE Selected

TACFIRE 1200 and TACFIRE 600 are the only options

c. AUTH Button. The AUTH two - state button al-

available for TACFIRE messages sent to artillery. TAC-

lows the crew to toggle between NONE and MANUAL. If

FIRE 1200 is the default for the TACFIRE nets. The slow-

NONE is selected, no authentication is required. This

er rates for the AIR NETS are to be used only if reception

function automatically displays NONE due to use of auto-

is poor at high rates.

matic authentication. If MANUAL is selected, an operator

input of the transmission authenticator is required each

time transmission is attempted. MANUAL authentication

is normally only used in air - to - air or air - to - ground TAC-

FIRE. If MANUAL is selected, but no manual authentica-

tion is desired at the time of transmission, the message

will be sent on the second press of the SEND button.

d. BLOCK Button. The BLOCK two-state button al-

lows the crew to toggle between SINGLE and DOUBLE.

SINGLE BLOCK sends each segment of data once per

SEND. DOUBLE BLOCK sends each data segment twice

per SEND. DOUBLE should be used when atmospheric con-

ditions/reception are poor or when jamming is suspected.

NOTE

• A minimum preamble of 0.4 seconds is

required when transmitting through cryp-

to equipment. The longer the preamble,

the longer the air time.

• When establishing communications with

AFATDS, ensure that 2.3 seconds is used

by both the AH-64D and the artillery.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.23

TM 1-1520-251-10

e. PREAMBLE Button. The PREAMBLE button is

the PRESET DIR button presented on either the COM

the ON AIR time that establishes a digital link between the

page or SOI page.

radios prior to the message being sent. Selecting the

PREAMBLE button provides the capability to modify this

ON AIR time. An interval between 0.1 and 9.9 seconds

may be entered.

f. MONITOR Button. Selection of the MONITOR

button allows the crew to modify the time that the IDM lis-

tens for interfering traffic prior to transmitting the mes-

sage. A time from 0.5 seconds to 9.9 seconds or OFF may

be entered. To turn this function off the crew must enter

zero, the word OFF is displayed on the ATHS page. If

more than 15 seconds have elapsed after the SEND but-

ton has been depressed, the IDM will reset automatically

and the SEND button must be pressed again. Voice trans-

mission has priority over digital transmission; therefore,

the IDM will wait until the airway is clear of voice traffic if a

monitor time has been selected.

g. XMIT RADIO Button. Selection of the multi -

state XMIT RADIO button allows the crew to select the ra-

dio that the IDM will use to transmit the TACFIRE digital

messages. Preset options of VHF, UHF, FM1, and FM2

are displayed upon selection of of the XMIT RADIO but-

LBA5180

ton. When the preset is selected and tuned to a radio, that

radio will be set at XMIT RADIO. After the preset has been

Figure 3-62T.

PRESET DIR Page

tuned to a radio, this button allows the operator to config-

ure it to a different radio. Artillery TACFIRE nets are nor-

The PRESET DIR page contains the following unique but-

mally set on FM1 or FM2.

tons:

3.53AD PRESET DIR PAGE

• T5

REPLACE button

• L1 - L5

PRESET buttons

The PRESET DIR page (fig 3-62T) accesses a pre - mis-

• R1 - R5

PRESET buttons

sion developed database of up to 60 digital/voice PRE-

SET items. The PRESET DIR page supports manual

• B2

PAGE BACK button

page searching, KU data searching, the selection of

• B3

PAGE FORWARD button

single PRESET items, and the replacement of COM page

• B5

ABORT button (conditional)

presets with PRESET items. The PRESET DIR page but-

ton is displayed following a DTU load and is accessed via

• B6

SRCH button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.24

Change 2

TM 1-1520-251-10

NOTE

3.53AD.2 PRESET Buttons. The PRESET DIR page

button provides access to a premission developed data-

Selecting the PRESET REPLACE location

base containing up to 60 PRESET items. Each of the

9 or 10 with a Longbow or Tacfire PRESET

PRESET items possess identical data type capabilities

item will store the COM and member data,

and capacities as does the COM page presets inclusive of

however, the net-type will be changed to

members. Upon the display of the page, the first valid

voice.

PRESET item will be selected and the corresponding

PRESET item status window (para 3A.32.33.53AD.3 and

3.53AD.1 REPLACE Button. The PRESET DIR

fig 3-62T) is displayed along with the PRESET item MEM-

LOCATION REPLACE format is displayed when the RE-

BER status window. Each PRESET item button contains

PLACE button (fig 3-62U) is selected. This display format

two lines of information, with the first line containing the

provides the means to replace any one of the ten COM

Unit ID field and the digital protocol fields. The second line

page presets with the selected PRESET item. When the

contains the Unit Call Sign field. The digital protocol as-

selected PRESET item is assigned with a Longbow or

signment is represented by the presence of either an L

Tacfire protocol, the REPLACE PRESET location display

(Longbow) or T (TACFIRE), which indicates the current

button locations 1 through 8 are white while presets 9

protocol of the selected PRESET Item.

through10 are green. The selection of any one of the

PRESET REPLACE location buttons commands the re-

3.53AD.3 PRESET ITEM Status Window. The PRE-

placement of that locations COM page preset with the se-

SET item status window (fig 3-62T) displays the field con-

lected PRESET items COM, IDM, and member data. Fol-

tents of the currently selected PRESET item. The primary

lowing the system’s successful processing of the

radio/mode and frequency/ECCM will be displayed in

replace - store operation, the COM page will display show-

white. Status window data fields includes:

ing that the replace was made.

•

Unit ID

• Call Sign

• IDM Type and IDM Preset - Net Number

• VHF Frequency

• UHF CNV status

• UHF HQ Net number

• UHF Single Channel Frequency

• FM1 CNV status

• FM1 SINC net number

• FM1 Single Channel Frequency

• FM2 CNV status

• FM2 SINC net number

• FM2 CNV status

• HF CNV status

• HF PRE

LBA5181

• HF ALE

• HF ECCM

Figure

3-62U.

PRESET DIR - REPLACE Button

Selected

• HF SC

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.25

TM 1-1520-251-10

3.53AD.4 PRESET ITEM MEMBER Status Win-

The PRESET DIR page with search RESULTS posted

dow. The PRESET item MEMBER status window (fig

has the following unique button:

3-62T) displays the quantity of existing members for the

• B5

ABORT button

selected PRESET item. The status window displays the

PRESET item’s total member count field status as a num-

3.53AD.6 SRCH Button. The PRESET ITEM

ber of 0 through 15 followed by MEMBERS. PRESET item

SEARCH data entry button provides the means to search

members are not editable from the PRESET DIR page.

for a specific preset item in the preset directory’s data-

base. Searching and replacing functionality provides the

means to quickly replace Longbow, Tacfire, and Voice

3.53AD.5 ABORT Button. The ABORT button (fig

presets. The keyboard label reads PRESET SEARCH

3-62V) provides the means to abort a search during OIP

and the data entry may be all or a portion of either the Unit

or after search is complete. The ABORT button is dis-

ID or Call Sign of a preset. PRESET item search will begin

played when a search is initiated. Aborting a search re-

following the selection of KB ENTER key and an ABORT

stores the PRESET item page list and resets the page

button will display at this time.

number to one.

3.53AD.7 SRCH RESULTS Format. The PRESET DI-

RECTORY page posts and displays matched search re-

sults as they occur in a SEARCH RESULTS format. The

RESULTS status window (fig 3-62V) is displayed during a

search to reflect that the PRESET items being displayed

are matches to search data. Posted preset results may be

reviewed and stored while the search continues. The

PRESET list buttons control presentation of search result

pages. If there are 10 or less PRESET item matches

found in a search, then the page buttons will not be dis-

played.

3.53AD.8 NO MATCH Status Window. The NO

MATCH status window is displayed when there was no

match found during a preset PRESET DIR database item

search. When called, the NO MATCH status will be dis-

played in white in the location immediately above the

SRCH button.

3.53AE NET PAGE

The NET page displays the preset member data associat-

ed with the selected COM page preset - net, provides edit-

LBA5182

ing for 1-15 members for Longbow, Tacfire, and NONE

protocols. Additionally, it provides advisory status win-

dows for the selected net member’s Callsign/Suffix status

Figure

3-62V.

PRESET DIR Page - Database SRCH

and IDM digital ID settings and an abbreviated ownship

With RESULTS Posted

(para 3.53W.14) status window.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.26

Change 3

TM 1-1520-251-10

The NET (LONGBOW, TACFIRE, and NONE) page (fig

3-62W) has the following unique buttons:

• T1

SUFFX (Suffix) button

• T2

DEL (MEMBER) button

• T3

TEAM button

• T4

PRI button

• T5

C/S button

• T6

SUB button

• L1-L5

MEMBER buttons

• R1-R5

MEMBER buttons

• R6

MODEM button

LBA5183

• B2

PAGE Back button

Figure 3-62W. NET Page - (Longbow Team Member

• B3

PAGE Forward button

Selected)

3.53AE.1 SUFFX Button. The SUFFX button displays

• B5

CLEAR button

the SUFFX page (para 3.53AE.13).

3.53AE.2 MEMBER DEL Button. The MEMBER DEL

button provides the capability to delete the selected mem-

ber. This button is only displayed for a preset with an as-

signed IDM net and a valid call sign as displayed in the

MEMBER CALL SIGN button. Selection of the MEMBER

DEL button will prompt for a YES or NO confirmation to

initiate the deletion. Selecting the YES confirmed button

deletes the data associated with the selected MEMBER

button and returns the crewmember out of the member

delete confirmation mode. Selecting NO returns the crew-

member out of the member delete confirmation mode.

3.53AE.3 MEMBER TEAM Button. The TEAM button

provides the capability of toggling a net member’s team

designation on or off. Selecting the TEAM button assigns

and unassigns team member status independently of the

PRI (primary) status. Selecting the TEAM button will add

the selected member to the IDM net associated with the

currently displayed preset and display the TM status on

the second field of the selected MEMBERs button. This

button is only displayed if the net member currently se-

lected has a subscriber ID.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.27

TM 1-1520-251-10

3.53AE.4 MEMBER PRI Button. The PRI (primary)

3.53AE.10 CLEAR Button. The CLEAR button, dis-

button provides the capability to toggle a net member’s

played in white, is only displayed if the IDM has detected

primary designation on or off. Selecting the PRI button as-

extraneous Longbow/Tacfire subscribers. This may occur

signs and unassigns primary member status indepen-

if the crew deletes subscribers from a Longbow/Tacfire

dently of the TEAM status. Selecting the PRI button will

net, but then performs an upload of the original Longbow/

add the selected member to the IDM net associated with

Tacfire member data from the DTC. Pressing the CLEAR

the currently displayed preset and display the PRI status

button will delete the extraneous Longbow/Tacfire sub-

on the second field of the selected MEMBER’s button.

scribers from the IDM.

This button is only displayed if the net member currently

selected has a subscriber ID and if there are not already

3.53AE.11 MEMBER Status Window. The net MEM-

seven members designated as primary members.

BER status (figs 3-62W and 3A-31) is displayed when a

net MEMBER is selected.

3.53AE.5 MEMBER C/S Button. The MEMBER C/S

The status window contains 3 fields:

data entry button provides the capability to edit or create

• Unit ID and Net Protocol

the selected members call sign. This button is only dis-

• Call Sign

played for a preset with an assigned IDM net. When se-

lected, the keyboard label will display CALL SIGN and will

• Suffix Descriptor

accept an entry of 3 to 5 characters.

3.53AE.12 MEMBER IDM Status Window. The net

MEMBER IDM status (fig 3-62W) window is displayed

3.53AE.6 MEMBER SUB ID Button. The preset net

when a net MEMBER is selected. The status window con-

MEMBER SUB ID data entry button provides the capabili-

tains five fields:

ty to edit, or create, the selected members Longbow or

Tacfire preset net subscriber ID. The preset net MEMBER

• LB (Longbow subscriber ID)

SUB ID button is displayed upon the selection of a MEM-

• TF (Tacfire subscriber ID)

BER button and Longbow or Tacfire is the selected proto-

col. The keyboard label displays SUBSCRIBER ID and

3.53AE.13 SUFFX Page Button. The SUFFX page (fig

accepts a one or two character input between 0 - 39, A - Z,

3-62X) displays the Suffix data that has been loaded from

1A - 1Z, 2A - 2Z, or 3A - 3I.

the DTC. The SUFFX page provides the capability to

modify members with a suffix.

3.53AE.7 MEMBER Buttons. The member buttons

provide the capability to create, edit, and assign/unassign

team and priority member status for up to 15 IDM preset

net members or create/edit up to 15 voice net members.

The preset net MEMBER buttons contain two fields of in-

formation. The first field contains the Call Sign ID and Suf-

fix Description. The second field contains the Digital ID,

Team Status, and Primary Status. The Call Sign ID is dis-

played with up to a five character free text descriptor. The

Suffix Description is displayed with up to the first eight

characters of the free text descriptor. When selected, a

preset net member status window (para 3A.33.15) and

net member IDM status window (para 3A.33.16) will be

displayed providing a display of the selected member’s

COM and digital data.

3.53AE.8 MODEM Page Button. The MODEM button

displays the MODEM page (para 3.53AC).

3.53AE.9 PAGE Back and PAGE Forward But-

LBA5108

tons. Allows selection between two pages of preset

members.

Figure 3-62X. SUFFX Page - (Net Member Selected)

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.28

Change 3

TM 1-1520-251-10

The SUFFX page contains the following unique buttons:

• T4

STORE button

• L1-L6

Suffix buttons

• R1-R6

Suffix buttons

• B2

PAGE Back button

• B3

PAGE Forward button

3.53AE.14 STORE Button. Selecting the STORE but-

ton provides the capability to store the selected Suffix into

a selected preset net member button location on the NET

page. Also as part of this selection, a new subscriber call

sign for the NET MEMBER selected is created using the

selected Preset’s call sign and the selected Suffix ID. This

button is displayed in white.

LBA - 5073A

3.53AE.15 Suffix Buttons. The Suffix buttons are dis-

played on the left and right sides of the SUFFX page.

Figure 3-62Y. MSG REC Page (Source IDM)

3.53AE.16 PAGE Back and PAGE Forward But-

The MSG REC page contains the following unique but-

tons. Allows selection of multiple pages of suffixes.

tons:

• T2

SOURCE button

• T2

STORE/RVW button

3.53AF MSG REC PAGE

• T3

LOCATION CURR button (Longbow)

• T4

LOCATION MSN1 button (Longbow)

The MSG REC page (fig 3-62Y) provides the operator the

capability to manage IDM messages that are received

• T5

LOCATION MSN2 button (Longbow)

within the IDM’s message receive buffer or to manage HF

• T6

DEL button

messages that are received within the HF radio’s receive

• L1-L6

Message Receive buttons

buffer. The crew is cued when a message is received by a

EUFD advisory, message receive tone (para 2.139, table

• R1-R6

Message Receive buttons

2-15) and the message appearing on the MSG REC page.

• B2

PAGE Back button

Additionally, Longbow messages received containing

• B3

PAGE Forward button

TSD data messages will cue the crew by displaying a

REC button on the TSD page.

• B4

ATHS Page button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.29

TM 1-1520-251-10

NOTE

Storage of an IDM message will overwrite

the selected mission data.

3.53AF.1 SOURCE Button. The SOURCE button

toggles between IDM or HF message receive controls and

messages.

3.53AF.2 STORE/RVW Button. The STORE/RVW button

provides the capability to store a data message or review

(para 3A.35.9) a FREE TEXT (Longbow) message, or any

ATHS message received via the IDM. The STORE and RVW

buttons will display after an applicable message has been se-

lected. The STORE button stores the data associated with

the selected Message button and then deletes the message

LBA5184

from the IDM buffer. If a TACFIRE message is selected for

Figure 3-62Z. MSG SEND Page

review, then upon activation of the RVW button the page will

automatically switch to the page MSG REC page of the

3.53AF.4 DEL Button. Selecting the DEL button de-

letes the IDM message associated with the selected mes-

ATHS TACFIRE. Refer to the ATHS section for more infor-

sage button.

mation.

3.53AF.5 Message Buttons. There can be up to 12 mes-

sage buttons per page (fig 3A-37) and up to 13 pages. On

the top line, the type of message will be displayed, along with

the protocol the message was received on. If the message is

NOTE

not valid per the indicated type a “?” will be displayed at the

beginning of the second line. The call sign of the sender is

The LOCATION MSN1 or MSN2 buttons are

displayed at the end of the second line. If the sender is a

barriered anytime that a Longbow data mes-

subscriber to one of the presets, the call sign will be

sage is selected and the mission card is not

displayed, otherwise a “?” will be displayed. New incoming

messages are displayed at the end of the buffer.

available, corrupt, or busy with a different task.

3.53AF.6 PAGE Back and PAGE Forward Buttons. Al-

lows selection of multiple pages of received IDM messages.

3.53AF.7 ATHS Page Button. The ATHS button (fig

3.53AF.3 LOCATION CURR / MSN1 / MSN2 But-

3A-39) displays the ATHS page.

tons. The MSG REC page CURR, MSN1, and MSN2 but-

3.53AF.8 RVW Message Window. The RVW message

tons (fig 3-62Z) provide the capability to specify where a

window (fig 3A-39) allows the crewmembers to review text

Longbow message file, or files, will be stored. Selecting the

based messages (Free Text) received over the IDM. The

CURR button will store the selected Longbow message or

status window can display up to 19 lines of 44 characters.

messages to the current (active) locations and displays. Se-

When used with the PAGE Back and PAGE Forward

buttons, up to six pages of a message can be viewed. The

lecting the MSN1 or MSN2 buttons will store the message, or

MSG REC page contains the following unique buttons

messages, to either MISSION1 or MISSION2 on the DTC.

when SOURCE is HF:

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.30

Change 3

TM 1-1520-251-10

• T2

RVW button

• T5

FWD button

• T6

DEL button

• L1-L5

Message Receive buttons

• L6

PP Receive button

• R1-R5

Message Receive buttons

3.53AF.9 FWD Button. The FWD button (figs 3-62AA

and 3-62AB) transmits the HF message associated with

the selected MSG REC HF MSGS button on the current

frequency or mode.

LBA - 5077

Figure 3-62AB. MSG REC Page (HF RVW Selected)

3.53AF.10 DEL Button. Selecting this button deletes

the HF message associated with the selected Message

Receive button. Selection of the DEL button will prompt

for a YES or NO confirmation to initiate the deletion.

3.53AF.11 Message Receive Buttons. There can be

up to 10 messages buttons (fig 3-62AA). The message

will be displayed with the day and time it was received and

the first six characters from the sender’s call address.

3.53AF.12 PP Receive Button. The PP button (fig

LBA5076

3-62AC) provides controls to store or delete a present

position report. The PP button is displayed when a pres-

Figure 3-62AA. MSG REC Page (Source HF)

ent position report is received over the HF radio.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.31

TM 1-1520-251-10

3.53AG MSG SEND PAGE

The MSG SEND page (fig 3-62AD) provides controls to

send MISSION 1 or MISSION 2 data files via the IDM to

Longbow protocol team members. It also provides

access to the SET page which is used to configure the

IDM and message parameter defaults. It also provides

access to the CURRENT MISSION page which is used for

sending selected components of the current mission to

team members. Additionally, HF preprogrammed and

present position reports can be sent from the MSG SEND

page (fig 3-62AE).

LBA - 5078

Figure 3-62AC. MSG REC Page (HF PP Selected)

3.53AF.13 Free Text Message Window. The Free Text

Message Window (fig 3-62AB) allows the crewmembers

to review Free Text messages received over the HF radio.

The MSG REC page contains the following unique but-

LBA5185

tons when SOURCE is HF and PP is selected:

Figure 3-62AD. MSG SEND Page

• T2

STORE button

• T6

DEL button

The MSG SEND page contains the following unique but-

tons:

3.53AG.14 STORE Button. The HF PP STORE button

• T1

SOURCE button

(fig 3-62AC) provides the capability to store a present

• L1

MISSION 1 button

position report received over the HF radio into the control

measures file, location 92.

• L2

MISSION 2 button

• R1

CURRENT MISSION button

• R6

SEND button

3.53AF.15 DEL Button. Selecting this button deletes

the HF present position report. Selection of the HF PP

3.53AG.1 SOURCE Button. The SOURCE button

DEL button will prompt for a YES or NO confirmation to

toggles between IDM or HF message sending controls

initiate the deletion.

and messages.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.32

Change 3

TM 1-1520-251-10

3.53AG.2 MISSION 1 (or 2) Buttons. The MISSION

3.53AG.5 RVW Button. The RVW button (fig 3-62AF)

buttons provide the capability to transmit the MISSION 1

allows the crewmembers to review the selected prepro-

(or 2) files to selected Longbow protocol team members

grammed Free Text message before sending it over the

upon the selection of the IDM SEND button.

HF radio.

3.53AG.3 CURRENT MISSION Button. The CUR-

RENT MISSION button displays the LONGBOW protocol

CURRENT MISSION page.

3.53AG.4 SEND Button. The selection of the SEND

button will command the system to transmit the selected

files through the selected IDM channel. The data is only

sent to team members.

The MSG SEND page contains the following unique but-

tons when SOURCE is HF (fig 3-62AE):

• T2

RVW button

• L1 - L5

Message Send buttons

• L6

PP Send button

• R1 - R5

Message Send buttons

• R6

SEND button

• B2

PAGE Back button

• B3

PAGE Forward button

• B4

ABORT button

LBA5113

Figure 3-62AF. MSG SEND Page (HF RVW

Selected)

3.53AG.6 Message Send Buttons. There can be up to

10 preprogrammed text message buttons per page, up to

3 pages. The preprogrammed text messages are num-

LBA5112

bered PM01 to PM25 with the first 16 characters of each

Figure 3-62AE. MSG SEND Page (Source HF)

message displayed.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.33

TM 1-1520-251-10

3.53AG.7 PP Send Button. The PP send button (fig

3.53AH CURRENT MISSION PAGE

3-62AG) provides the capability to send the ownship pres-

ent position over the HF radio’s modem.

The CURRENT MISSION button displays the CURRENT

MISSION page (fig 3-62AH). The CURRENT MISSION

page provides the capability to individually select the type

of information to be sent over the IDM using Longbow

(AFAPD) protocol. Selection of the ALL button allows

transmission of all current files. Once an item is selected,

selecting the SEND button will initiate transmission over

the IDM.

LBA5114

Figure 3-62AG. MSG SEND Page (HF PP Selected)

3.53AG.8 SEND Button. The SEND button transmits

LBA - 5115B

the HF message through the radio’s modem.

Figure 3-62AH. CURRENT MISSION Page

3.53AG.9 PAGE Back and PAGE Forward But-

tons. Allows selection of multiple pages of prepro-

grammed HF text messages.

The CURRENT MISSION page contains the following

unique buttons:

3.53AG.10 ABORT Button. The ABORT button is dis-

• L1

WAYPOINTS button

played while the HF message is being sent, in order to al-

• L2

AREAS button

low the crew to abort the transmission.

•

LINES button

The MSG SEND page contains the following unique but-

• L4

ROUTE (CURRENT) button

tons when SOURCE is HF and PP is selected:

• L5

TGT/THRT button

• L6

CONTROL MEASURES button

• R6

SEND button

•

LASER CODES button

3.53AG.12 SEND Button. The SEND button transmits

• R6

SEND button

the ownship present position through the HF radio’s mo-

• B3

ROUTE button

dem.

• B4

ALL button

3.53AG.13 ABORT Button. The ABORT button is dis-

3.53AH.1 WAYPOINTS Button. The WAYPOINTS but-

played while the present position report is being sent, in

ton allows sending of the current waypoints file over the

order to allow the crew to abort the transmission.

IDM.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.34

Change 3

TM 1-1520-251-10

3.53AH.2 AREAS Button. The AREAS button allows

sending of the current engagement areas file over the

IDM.

3.53AH.3 LINES Button. The LINES button allows

sending of the current phase lines file over the IDM.

3.53AH.4 TGT/THRT Button. The TGT/THRT button

allows sending of the current target and threats file over

the IDM.

3.53AH.5 CONTROL MEASURES Button. The CON-

TROL MEASURES button allows sending of the current

control measures file over the IDM.

3.53AH.6 LASER CODES Button. The LASER

CODES button allows sending the current laser codes file

over the IDM.

3.53AH.7 SEND Button. The SEND button is only dis-

played if a valid CURRENT MISSION file is selected to be

sent. The selection of the SEND button will command the

LBA - 5116B

system to transmit the selected files through the selected

channel of the IDM. The selection of the SEND button will

command the system to transmit the selected files

Figure

3-62AI.

CURRENT MISSION Page (ROUTE

through the selected LONGBOW protocol channel of the

Button Selected)

IDM. The data is only sent to LONGBOW team members.

3.53AH.8 ROUTE Button. The ROUTE button allows

The ROUTE button provides the following unique buttons:

sending of the current route file over the IDM. The ROUTE

button presents all of the current routes files available for

• L1-L6

ROUTE buttons

sending over the IDM (fig 3-62AI).

• R2 - R5

ROUTE buttons

3.53AH.9 ALL Button. The ALL button allows sending

• B4

ALL button

of all current mission files over the IDM.

3.53AI.1 ROUTE Buttons. The ROUTE buttons allow

3.53AI CURRENT MISSION - ROUTE SELECTIONS

selection of a single route file to send over the IDM.

The ROUTE button (fig 3-62AI) provides the capability to

select various routes for sending over the Longbow IDM

3.53AI.2 ALL Button. The ALL button allows sending

protocol.

of all route files over the IDM.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.35

TM 1-1520-251-10

3.53AJ FREE TEXT PAGE

3.53AJ.4 CLEAR Button. The CLEAR button clears

the data contained in the IDM TEXT buttons.

The FREE TEXT page (fig 3-62AJ and 3-62AK) provides

the capability to create a free text message for transmis-

sion through the IDM using Longbow, protocols.

LBA5118

Figure 3-62AK. FREE TEXT Page (Source HF)

LBA - 5117A

The FREE TEXT page contains the following unique but-

tons when SOURCE is HF:

Figure 3-62AJ. FREE TEXT Page (Source IDM)

• L1-L4

HF TEXT (1-4) buttons

The FREE TEXT page contains the following unique but-

• R6

SEND button

tons when SOURCE is IDM:

• B4

CLEAR or ABORT button

• T1

SOURCE button

3.53AJ.5 HF TEXT Buttons. Each HF TEXT (1-4) but-

• L1-L4

IDM TEXT (1-4) buttons

ton provides the capability to load four 44-character mes-

sages into the system for transmission by the HF radio.

• R6

SEND button

• B4

CLEAR button

3.53AJ.6 SEND Button. The SEND button transmits

the HF TEXT message through the HF radio’s modem.

3.53AJ.1 SOURCE Button. The SOURCE button

toggles between IDM or HF free text message controls.

3.53AJ.7 CLEAR/ABORT Buttons. The CLEAR but-

ton clears the data contained in the HF TEXT buttons. The

3.53AJ.2 IDM TEXT Buttons. Each IDM TEXT (1-4)

ABORT button is displayed while the HF TEXT is being

button provides the capability to load four 44-character

sent, in order to allow the crew to abort the transmission.

messages into the system for transmission by the IDM or

HF radio.

3.53AK SIGNAL OPERATING INSTRUCTIONS (SOI)

Page

3.53AJ.3 SEND Button. The SEND button transmits

the IDM TEXT message through the selected channel of

The SOI page (fig 3-62AL) provides the capability to au-

the IDM or through the HF’s modem. With SOURCE to

thenticate communication transmissions and access ex-

IDM, the data is only sent to team members.

panders.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.36

Change 3

TM 1-1520-251-10

3.53AK.2 PRESET DIR Page Button. The PRESET

DIR button displays the preset data base for selection and

storage to one of the ten locations on the COM page (para

3A.32 and fig 3A-27).

3.53AK.3 AUTH CHALLENGE Button. The AUTH

CHALLENGE button provides the capability to extract the

challenge/reply table and display the codes within the

AUTH CHALLENGE REPLY window (fig 3-62AM ).

LBA5119

Figure 3-62AL. SOI Page

The SOI page contains the following unique buttons:

• T1

DAY button

• L6

PRESET DIR page button

• R1

AUTH CHALLENGE button

• R2

AUTH REPLY button

LBA5120

• R4

XMSN AUTH INITIATE button

Figure 3-62AM. SOI Page - AUTH CHALLENGE

• R5

XMSN AUTH VALIDATE button

• B5

EXPND (Expander) page button

3.53AK.4 AUTH REPLY Button. The AUTH REPLY

3.53AK.1 DAY Button. The DAY button provides the

button provides the capability to enter a challenge code

capability to toggle between the two different days of SOI

and extract the reply code from the challenge/reply table

data that are displayed within the communications sub-

and display the code within the AUTH CHALLENGE RE-

system.

PLY window (fig 3-62AN).

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.37

TM 1-1520-251-10

NOTE

An ALL CODES USED message will be dis-

played in white when all the codes have

been used.

3.53AK.6 XMSN AUTH VALIDATE Button. The

XMSN AUTH VALIDATE button (fig 3-62AP) provides the

capability to verify a transmit authentication code from the

transmit authentication table. The VALID label is dis-

played when the transmit authentication matches the

transmit authentication code entered through the KU. The

INVALID label is displayed when the transmit authentica-

tion table does not match the transmit authentication code

entered through the KU.

LBA5121

Figure 3-62AN. SOI Page - AUTH REPLY

3.53AK.5 XMSN AUTH INITIATE Button. The XMSN

AUTH INITIATE button extracts the transmit authentica-

tion codes and displays them in the XMSN AUTH window

(fig 3-68AO).

LBA5123

Figure 3-62AP. SOI Page - XMSN AUTH VALIDATE

3.53AL EXPANDER (EXPND) PAGE

The EXPND page (fig 3-62AQ), a view - only page, pro-

vides the capability to view the expander lookup table.

LBA5122

The expander lookup table displays the one character ex-

pander and descriptor field. Up to 26 expanders may be

Figure 3-68AO. SOI Page - XMSN AUTH INITIATE

displayed from the lookup table.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.38

Change 3

TM 1-1520-251-10

3.53AM.1 EXPND Page Button. The EXPND button

displays the EXPND page (para 3.53AL). The XPNDR

page contains the following unique buttons:

• L1

MODE 1 button

• L2

MODE 2 button

• L3

MODE 3/A button

• L4

MODE C button

• L5

MODE 4 button

• R1

CODE Mode 1 button

• R2

CODE Mode 3/A button

• R3

CODE Mode 4 button

• R4

REPLY button

• R5

MODE 4 HOLD button

• R6

XPNDR MASTER button

• B2

ANTENNA button

• B5

IDENT button

3.53AM.2 MODE 1 Button. The MODE 1 button en-

LBA5124

ables/disables MODE 1.

3.53AM.3 MODE 2 Button. The MODE 2 button en-

Figure 3-62AQ.

EXPND Page

ables/disables MODE 2.

3.53AM XPNDR PAGE

3.53AM.4 MODE 3/A Button. The MODE 3/A button

The XPNDR page (fig 3-62AR) provides the capability to

enables/disables Mode 3/A. When MODE 3/A button is

control transponder functions.

selected OFF, the MODE C button is automatically turned

OFF.

3.53AM.5 MODE C Button. The MODE C button en-

ables/disables the MODE C transmission. When MODE C

button is selected ON, the MODE 3/A button is automati-

cally turned ON.

3.53AM.6 MODE 4 Button. The MODE 4 button en-

ables/disables the MODE 4. The MODE 4 Code data field

on the EUFD (para 3A.16) is updated when the mode has

been changed. The Mode 4 warning is a tone which is

generated by the XPNDR in response to a Mode 4 incom-

patible code.

3.53AM.7 CODE MODE 1 Button. The CODE MODE

1 button provides the capability to change the MODE 1

code.

NOTE

• Due to the APX - 118 hardware and soft-

ware fielding plan, an interim alternative

MODE 2 entry procedure must be per-

formed (para 3.53AM.8).

LBA5125

• Mode 2 must be manually entered on the

Figure 3-62AR.

XPNDR Page

face of the APX - 100.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3-66.39

TM 1-1520-251-10

3.53AM.8 APX - 118 CODE MODE 2 Entry.

3.53AN UHF PAGE

1. MODE 3/A - Select.

The UHF page (fig 3-62AS) provides specific controls for

the ARC - 164 UHF radio.

NOTE

If the assigned mode 2 code is not entered

within 15 seconds,

2222 will be displayed as

the current MODE 3/A code.

2. Mode 2 code - Enter “2222” followed by as-

signed mode 2 code, within 15 seconds (exam-

ple: 2222xxxx).

3.53AM.9 CODE MODE 3/A Button. The CODE

MODE 3/A button provides the capability to change the

MODE 3/A code.

3.53AM.10 CODE MODE 4 Button. The CODE MODE

4 button toggles between XPNDR code MODE 4 A and B.

The code Mode 4 data field is updated when the code has

been changed. When the APX-100 is installed, the

CODE MODE 4 button is not displayed if the KIT-1C com-

puter is not installed.

3.53AM.11 REPLY Button. The REPLY button controls

the feedback the crew will receive when the XPNDR system

responds to a Mode 4 interrogation. The button provides op-

tions of EUFD/AUDIO, EUFD, and OFF. The Mode 4 Reply

LBA5126

mode of EUFD/AUDIO, enables the capability to provide both

a EUFD advisory message and an IFF Tone when a Mode 4

Figure 3-62AS. UHF Page

interrogation is received. The transponder generates the IFF

The UHF page contains the following unique buttons:

Tone to alert the aircrew that the interrogator is not receiving

• L1

NET button

a reply from the aircraft in response to a Mode 4 interroga-

tion. This indicates the incoming interrogations are valid but

• L2

UHF MODE button

not compatible with the key currently loaded into the aircraft’s

• L5

TONE button

transponder and selected by the transponder’s code (A or B).

• L6

GUARD RECEIVER button

3.53AM.12 MODE 4 HOLD Button. Selecting the

MODE 4 HOLD button prevents erasure of the Mode 4

• R2

CAL DAY button

Codes when the aircraft is on the ground and power is re-

• R3

COLD START button

moved from the transponder system. It should be acti-

• R4

GPS TIME button

vated at least 20 seconds prior to power down. When the

APX - 100 is installed, the MODE 4 HOLD button is not

• R5

RECEIVE TIME button

displayed if the Kit-1C computer is not installed.

• R6

SEND TIME button

3.53AM.13 XPNDR MASTER Button. The XPNDR

• B3

WOD page button

MASTER button changes the transponder mode between

• B4

FMT page button

STBY (Standby) and NORM (Normal).

• B5

SET page button

3.53AM.14 ANTENNA Button. The ANTENNA button al-

lows selection of the antenna used for transmitting and re-

3.53AN.1 UHF MODE Button. The UHF MODE button

ceiving XPNDR interrogations. Options are TOP, DIV (Diver-

provides the capability to control the mode of the UHF radio.

sity) and BOT (Bottom).

Options are SC (Single Channel) and HQ (HAVE QUICK).

3.53AM.15 IDENT Button. The IDENT button com-

3.53AN.2 NET Button. The NET button allows the crew to

mands the transponder to transmit Modes 1, 2, and 3/A if

enter a HAVE QUICK net number into the UHF radio. HAVE

ON. The IDENT button is not displayed if XPNDR MAS-

QUICK net numbers allow multiple station pairs to operate si-

TER button is in STBY mode or if Modes 1, 2, and 3/A are

multaneously using the same TOD (Time of Day) and WOD

all OFF, regardless of the XPNDR MASTER mode.

(Word of Day) without interference.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.40

Change 3

TM 1-1520-251-10

3.53AN.3 TONE Button. The TONE button allows the

3.53AO UHF WOD PAGE

crew to enable/disable the HAVE QUICK tones in the UHF

The UHF WOD page (fig 3-62AT) allows the crew to

radio.

manually enter and load WOD and WOD Segments into

the UHF radio.

3.53AN.4 GUARD RECEIVER Button. The GUARD

RECEIVER button enables/disables the UHF radio’s

monitoring of the guard frequency.

3.53AN.5 CAL DAY Button. The CAL DAY button pro-

vides the capability to change the Calendar Day in the

UHF radio. The Calendar Day is the internal date utilized

by the UHF radio. When the Calendar Day and a WOD

match in the UHF radio, the associated segments become

active, allowing HAVE QUICK communications.

3.53AN.6 COLD START Button. The COLD START but-

ton activates the Emergency Cold Start of the UHF radio’s in-

ternal clock. This will reset and start the UHF radio’s internal

clock at zero hundred hours. The COLD START button is

used when there is no other TOD available and a reference

time is required. The COLD START button is barriered when

the UHF radio is in HAVE QUICK mode.

3.53AN.7 GPS TIME Button. The GPS TIME button

causes the current time from the EGI to be loaded into the

UHF radio’s internal clock. The GPS TIME button is barri-

ered when the UHF radio is in HAVE QUICK mode.

LBA5127

NOTE

Figure 3-62AT. UHF WOD Page

Notify the other crewmember when initiating

The UHF WOD page contains the following unique buttons:

the UHF RECEIVE button, to prevent inad-

• R6

UPDATE button

vertent termination of reception.

•

L1 - L6

SEG (1 - 6) (segment) buttons

• B4

CLEAR button

3.53AN.8 RECEIVE TIME Button. The RECEIVE

TIME button configures the UHF radio to TOD receive. A

3.53AO.1 UHF WOD DAY Button. Upon entry to the

tone is generated upon successful reception of time. If

UHF WOD page the UHF WOD DAY button is zeroized.

TOD is not received within 60 seconds, the UHF radio will

The UHF WOD DAY button allows entry of a WOD for a

exit the receive mode.

new set of WOD Segments. When the Calendar Day and

a WOD match in the UHF radio, the associated segments

3.53AN.9 SEND TIME Button. The SEND TIME button

become active, allowing HAVE QUICK communications.

transmits the TOD. A tone in the headset sounds when

the TOD is transmitted.

3.53AO.2 UPDATE Button. The UPDATE button loads

the DAY and SEG data into the UHF radio. Upon a valid

3.53AN.10 WOD Page Button. The WOD button dis-

update into the UHF radio, a tone is generated and the

plays the UHF WOD page (para 3A.44).

WOD STATUS window is updated.

NOTE

3.53AN.11 FMT Page Button. The FMT button dis-

plays the FMT page (para 3A.45).

Deselecting the WOD page prior to selec-

tion of the update button will remove the

3.53AN.12 SET Page Button. The SET page button

segments from the segment buttons and will

displays the SET page. The page contains the UHF

replace them with question marks. Entry of

CRYPTO button and UHF CNV button which are used to

segments in one crewstation cannot be

configure the Crypto device (para 3A.46).

monitored in the opposite crewstation.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.41

TM 1-1520-251-10

3.53AO.3 SEGment Buttons. Upon entry to the UHF

3.53AP.2 UPDATE Button. The UPDATE button loads

WOD page the SEG buttons are zeroized. The SEG but-

the UHF FMT FREQ data into the UHF radio. Upon a valid

tons allow entry of up to six WOD segments for update

update into the UHF radio, a tone is generated.

into the UHF radio. At least one WOD segment must be

3.53AP.3 PAGE Back and PAGE Forward But-

loaded into the UHF radio for HAVE QUICK operation.

tons. Allows selection between two pages of HAVE

QUICK Training Frequencies.

3.53AO.4 CLEAR Button. The CLEAR button pro-

vides the capability to clear (i.e. zeroize) the data in the

3.53AQ UHF SET PAGE

DAY and SEG buttons.

The UHF SET page (fig 3-62AV) contains the CRYPTO

MODE and CRYPTO CNV buttons for the UHF radio.

3.53AP UHF FMT PAGE

The UHF FMT page (fig 3-62AU) contains the HAVE

QUICK Training Frequencies which can be entered or

modified and then loaded into the UHF radio.

LBA5129

Figure 3-62AV. UHF SET Page

The UHF SET page contains the following unique buttons:

LBA5128

• L2

CRYPTO MODE button

• L6

CRYPTO CNV button

Figure 3-62AU. UHF FMT Page

3.53AQ.1 CRYPTO MODE Button. The CRYPTO

MODE button controls the operation of the KY - 58. The

button provides options of CIPHER, PLAIN, and RE-

The UHF FMT page contains the following unique buttons:

CEIVE.

• L2 - L5

FREQ buttons

3.53AQ.2 CRYPTO CNV Button. The CRYPTO CNV

• L6

UPDATE button

button provides the capability to change the UHF crypto

net variable with options of 1 through 6.

• R2 - R5

FREQ buttons

• B2

PAGE Back button

3.53AR FM PAGE

• B3

PAGE Forward button

The FM page (fig 3-62AW) provides the capability to con-

3.53AP.1 FREQ Buttons. The FREQ buttons provide

trol the FM radios and their FH modes. The radio control

the capability to enter or modify the 16 HAVE QUICK

buttons on the FM page are only displayed if the radio is

Training Frequencies.

installed.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.42

Change 3

TM 1-1520-251-10

3.53AR.2 FM MODE Button. The FM Mode button

provides the capability to control the mode of the selected

radio. The button provides options of FM SC, FM FH, and

FM FH/M (Frequency Hopping/Master). SC mode allows

access to the ERF Page. FH mode allows access to the

ERF Receive Page. FH/M mode allows access to the ERF

Send Page.

3.53AR.3 MAN FREQ Button. The MAN FREQ button

provides the capability to change the Manual frequency of

the selected radio.

3.53AR.4 MAN TUNE Button. The MAN TUNE button

provides the capability to tune the radio to the frequency

that is displayed within the MAN FREQ window.

3.53AR.5 CUE FREQ Button. The CUE FREQ button

provides the capability to change the Cue frequency of the

selected radio.

LBA5130

3.53AS.6 CUE TUNE Button. The CUE TUNE button

provides the capability to tune the radio to the frequency

that is displayed within the CUE FREQ window.

Figure

3-62AW.

FM Page - SC MODE

3.53AR.7 HOPSET Button. The HOPSET button pro-

vides seven options that include the six HOPSET buttons

The FM page contains the following unique buttons:

and the MAN button. The hopset ID selected determines

the radio FH characteristics (hopping rate, frequencies,

• L1

RADIO button

and frequency order).

• L2

FM 1 MODE or FM 2 MODE button

3.53AR.8 OFFSET Button. The OFFSET button pro-

• L3

MAN FREQ button

vides the capability to control the offset ( - 10K, - 5K, 0,

• L4

MAN TUNE button

+5K, +10K) from the single channel FM frequency. The

OFFSET button is only displayed when the FM1 MODE or

• L5

CUE FREQ button

FM 2 MODE is set to SC.

• L6

CUE TUNE button

• R1

HOPSET button

3.53AS.9 LATE NET Button. The LATE NET button is

used to synchronize to an operational net whose TOD is

• R2

OFFSET button

not within the 4 second (plus/minus) frequency hopping

• R3

LATE NET button

communication window. The late net function may only be

used if the two net TODs are within 1 minute (plus/minus)

• R4

CLOCK GPS TIME button

of each other. This button is only displayed when the SINC

• R5

CLOCK FM TIME button

mode is FH.

• R6

CLOCK FM DATE/TIME button

3.53AR.10 CLOCK GPS TIME Button. The GPS TIME

• B2

ERF page button

button causes the current time from the EGI to be loaded

• B5

SET page button

into the radio and extracts that time from the selected ra-

dio and displays the data within the DATE/TIME button.

• B6

ZERO button

3.53AR.1 FM RADIO Button. The RADIO button pro-

3.53AR.11 CLOCK FM TIME Button. The FM TIME

vides the capability to toggle the display between the FM1

button extracts the current time from the selected radio

and the FM2 radio controls.

and displays the data within the DATE/TIME button.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.43

TM 1-1520-251-10

3.53AR.12 CLOCK FM DATE/TIME Button. The FM

The ERF page contains the following unique buttons:

DATE/TIME button provides the capability to change the

date and time currently loaded into the selected radio.

This data is displayed for 1 minute, then is considered

• T3

RECEIVE OR SEND button

stale.

• T4

STORE button

3.53AR.13 ERF Page Button. Selecting the ERF page

button will display the ERF page. The ERF page provides

• L1

RADIO mode button

the operator the capability to manage hopsets and lockout

sets (para 3A.48).

• L2

FM MODE button

3.53AR.14 SET Page Button. The SET page button

• L3-L6

Hopset/Lockout buttons

displays the FM SET page, which contains the POWER

button, the CRYPTO button and the CNV button.

• R1

ERF MODE button

3.53AR.15 ZERO Button. The ZERO button provides

• R2

FUNCTION button

the capability to zeroize the FM radio.

• R3-R6

Hopset/Lockout buttons

3.53AR.16 ERF RECEIVE Window. The white ERF

RECEIVE window will display on the FM ERF, and ERF

• B4

CLEAR button

SEND pages whenever the ERF RECEIVE button on the

ERF RECEIVE page is left selected for receipt of multiple

• B6

ZERO button

ERFs.

3.53AS FM ERF PAGE

The FM ERF page (figs 3-62AX and 3-62AY ) provides the

capability to manage Hopsets and Lockout sets data. The

FM ERF page incorporates three distinct modes of opera-

tion (para 3A.48.5).

LBA5136

LBA5135

Figure 3-62AX. FM ERF Page - Hopset Mode

Figure 3-62AY. FM ERF Page - Lockout Mode

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.44

Change 3

TM 1-1520-251-10

3.53AS.1 RECEIVE Button. The RECEIVE button (figs

3-62AZ and 3-62BA) provides the capability to command

the radio to the ERF receive mode. The radio remains in

the ERF receive mode to receive multiple ERFs for 5 min-

utes unless the RECEIVE button is manually deselected

or automatically deselected when a confirmed CLEAR is

performed. When a hopset or lockout set is received, this

button will be barriered until the Hopset or Lockout is ei-

ther cleared or stored (fig 3-62AZ). The RECEIVE button

is only available when the FM MODE button set to FH.

LBA5138

Figure 3-62BA. FM ERF RECEIVE Page - Lockout

Received

353AS.2 SEND Button. The SEND button (fig 3-62BB)

commands the radio to transmit the hopset or lockout ID

displayed within the FM ERF status window. This button is

only displayed when an H or L button is selected while the

LBA5137

FUNCTION button is set to REVIEW. The SEND button is

Figure 3-62AZ. FM ERF RECEIVE Page - Hopset

displayed in white and is only available when the FM

Received

MODE button set to FH/M.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.45

TM 1-1520-251-10

b. In Frequency Hopping modes, the FM radio auto-

matically changes its operating frequency at a predeter-

mined rate to reduce effects of jamming. Frequency hop-

ping mode allows the reception of hopset and lockout set

frequencies from other FM radios via the ERF function.

The FM radio generates the FM Load - Receiving ERF

tones when hopsets or lockout sets are received by the

radio.

c. Frequency Hopping Master mode is similar to Fre-

quency Hopping mode. However, the radio operating in

Frequency Hopping Master mode has additional capabili-

ties to allow it to be used by the frequency hopping net

controller. When operating as the Frequency Hopping

Master, the FM radio specifies the timing of all others in

the frequency hopping net. Frequency hopping master

mode allows the transmission of hopset and lockout set

frequencies to other FM radios via the ERF function.

3.53AS.6 ERF MODE Button. The ERF MODE button

operates in two modes: HOPSET and LOCKOUT. The

LBA5139

HOPSET mode configures the system for the reception of

hopsets. The LOCKOUT mode configures for the recep-

Figure

3-62BB.

ERF Page - FH/M Mode, ERF SEND

tion of lockout sets.

HOPSET Displayed

3.53AS.7 FUNCTION Button. The FUNCTION button

3.53AS.3 STORE Button. The STORE button is only

provides the capability to select REVIEW and DELETE for

displayed when a valid lockout has been received into the

hopsets and lockouts and COPY functions for hopsets.

holding memory buffer as displayed in the FM ERF status

window. The STORE button is displayed in white and is

3.53AS.8 Hopset (H) Buttons.

only available when the FM MODE button set to FH.

a. FM MODE FH. When receiving HOPSETS, se-

3.53AS.4 RADIO Button. The RADIO button config-

lecting one of the ERF HOPSET buttons (fig 3-62AZ)

ures the FM ERF page to present controls for either the

stores the hopset that is displayed within the RECEIVE

FM1 or FM2 radio.

hopset window to that button.

3.53AS.5 FM MODE Button. The FM MODE button

controls the ECCM mode of the selected FM radio:

b. FM MODE FH/M. When sending the ERF HOP-

SET buttons (fig 3-62BB) provide the capability to select a

• Single Channel

hopset to be transmitted through the ERF process. The

• Frequency Hopping

current hopset to be sent is displayed in the SEND HOP-

SET window and an intermittent beep will be heard until

• Frequency Hopping Master

the hopset is sent or cleared.

a. In Single Channel operation, the FM radio trans-

3.53AS.9 Lockout (L) Buttons.

mits and receives on a single frequency. Although not op-

erating in an ECCM mode, the radio can minimize interfer-

a. FM MODE FH. The L buttons are only selectable

ence with the use of frequency offsets. When operating in

when deleting Lockouts.

Single Channel mode, a frequency hopping net can be ini-

tialized using the manual hopping frequency. Similarly, the

CUE function is available in Single Channel mode, which

b. FM MODE FH/M. The L buttons provide the ca-

allows a single channel operator that is not currently within

pability to select a lockout to be transmitted through the

a frequency hopping net to “cue”, or contact, the frequen-

ERF process. The current lockout to be sent is displayed

cy hopping net.

in the SEND LOCKOUT window ( fig 3-62BC).

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.46

Change 3

TM 1-1520-251-10

LBA5140

LBA5141

Figure 3-62BD. ERF Page - SEND HOPSET

Figure 3-62BC. FM ERF Page - SEND Lockout

NOTE

A YES/NO confirmation will only display

when the CLEAR button is used to clear a

3.53AS.10 CLEAR Button.

received HOPSET or LOCKOUT.

3.53AS.11 RECEIVE HOPSET Window. The RE-

a. FM MODE FH. The CLEAR button (fig 3-62AZ)

CEIVED HOPSET window (fig 3-62AZ) is displayed when

provides the capability to clear a HOPSET or LOCKOUT

the system has received a valid HOPSET. The HOPSET

from the holding memory buffer. The CLEAR button will

will be displayed in white.

display upon receipt of a HOPSET or LOCKOUT and

when in COPY mode.

3.53AS.12 RECEIVE LOCKOUT Window. The RE-

CEIVE LOCKOUT window (fig 3-62BA) is displayed when

the system has received a valid LOCKOUT.

b. FM MODE FH/M. The CLEAR button (fig

3-62BD) clears the hopset or lockout that was selected for

3.53AS.13 ERF SEND HOPSET Window. The ERF

sending. The CLEAR button removes the SEND button

SEND HOPSET window (fig 3-62BD) displays the hopset

and itself (fig 3-62BF). The CLEAR button will display

data that is to be transmitted through the ERF process

when in COPY or EDIT modes.

with the selection of the SEND button.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.47

TM 1-1520-251-10

3.53AS.14 ERF SEND LOCKOUT Window. The ERF

3.53AT HF PAGE

SEND LOCKOUT window (fig 3-62BE) displays the lock-

The HF page (fig 3-62BG) provides specific controls for

out data that is to be transmitted through the ERF process

the ARC - 220 HF radio.

with the selection of the SEND button.

LBA5142

LBA5144

Figure 3-62BG. HF Page - MANUAL Mode

Figure

3-62BE.

ERF Page - SEND LOCKOUT

The HF page contains the following unique buttons when

in MANUAL mode:

• L1

HF STATE button

• L2

HF MODE button

• L5

HF MODEM button

• L6

SELF ADDRESS page button

• R3

CLOCK GPS TIME button

• R4

CLOCK HF TIME DISPLAY button

• R5

CLOCK TIME button

• R6

CLOCK DATE entry button

• B3

GND ORIDE button

• B5

SET page button

• B6

ZERO page button

3.53AT.1 HF STATE Button. The HF STATE button

provides the capability to set the HF radio to STBY

(Standby), SILENT, or T/R (Transmit/Receive). Standby is

the power up mode of the HF radio. Silent mode allows

reception of voice and data, but not automated transmis-

sions. Manual transmissions of voice (using PTT switch)

LBA5143

and data (using HF SEND buttons) are still possible while

in Silent mode. Normal HF radio operations occur when in

Figure

3-62BF. ERF Page - HOPSET Edit

the Transmit/Receive mode.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.48

Change 3

TM 1-1520-251-10

3.53AT.2 HF MODE Button. The HF MODE button pro-

3.53AT11 ZERO Button. The ZERO button displays

vides the capability to configure the HF radio into MANU-

the HF ZERO page (para 3A.59).

AL, PRESET, ALE (Automatic Link Establishment),

3.53AU HF SELF ADDRESS PAGE

ECCM (Electronic Counter Counter Measure Frequency

Hop), or EMERGENCY. Manual mode allows for tuning of

The HF SELF ADDRESS page (fig 3-62BH) provides up

the HF radio from the MAN page. Preset mode provides

to 20 non - modifiable self address options for selection.

up to 20 preprogrammed frequency channels to tune the

HF radio. ALE mode provides up to 20 preprogrammed

nets. And ECCM mode provides up to 12 preprogrammed

nets to establish links with various callers. Emergency

mode is a preprogrammed configuration of the radio for

use in an emergency.

3.53AT.3 HF MODEM Button. The HF MODEM button

provides the capability to select from up to 12 prepro-

grammed modem configurations for data communica-

tions.

3.53AT.4 SELF ADDRESS Page Button. The SELF

ADDRESS button displays the HF SELF ADDRESS page

(para 3A.50).

3.53AT.5 CLOCK GPS TIME Button. The CLOCK

GPS TIME button causes the current time from the EGI to

be loaded into the HF radio’s internal clock. Selection of

this button changes the HF STATE to STBY.

3.53AT.6 CLOCK HF TIME Display Button. The

LBA5145

CLOCK HF TIME display button provides the capability to

get the current time and date from the HF radio and have

Figure 3-62BH. HF SELF ADDRESS Page

it displayed in the CLOCK TIME and DATE buttons.

The HF SELF ADDRESS page contains the following

3.53AT.7 CLOCK TIME Button. The CLOCK TIME

unique buttons:

button provides the capability to view the current time in

• L1 - L5

HF self address option buttons

the HF radio or to change the time in the HF radio.

•

R1 - R5

HF self address option buttons

3.53AT.8 CLOCK DATE Button. The CLOCK DATE

• B2

PAGE Back button

button provides the capability to view the current date in

• B3

PAGE Forward button

the HF radio or to change the date in the HF radio.

3.53AU.1 HF Self Address Option Buttons. The HF

self address option buttons provide the capability to select

from up to 20 non - modifiable self addresses in the HF ra-

CAUTION

dio.

There are no UFD/EUFD indications

3.53AU.2 PAGE Back and Forward Buttons. Allows

when the HF radio override is selected.

selection between two pages of HF self addresses.

3.53AU.3 HF SELF ADDRESS Status Window. The

3.53AT.9 GND ORIDE Button. The GND ORIDE but-

HF SELF ADDRESS status window displays the current

ton provides the capability when selected, to override the

self address selected in the HF radio.

safety inhibits, in order to transmit on the HF radio while

the aircraft is on the ground.

3.53AV HF PAGE - PRESET MODE

3.53AT.10 SET Button. The SET button displays the

The HF PRESET Mode (fig 3-62BI) provides specific con-

HF SET page (para 3A.58).

trols and status when the HF radio is in the Preset mode.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.49

TM 1-1520-251-10

LBA - 5146

LBA - 5147

Figure 3-62BJ. HF PRESETS Page

Figure 3-62BI. HF Page - PRESET Mode

The HF page contains the following unique button when in

The HF PRESETS page contains the following unique

PRESET mode:

buttons:

• R1

PRESETS page button

• L2 - L6

HF preset channel buttons

3.53AV.1 PRESETS Page Button. The PRESET but-

• R2 - R6

HF preset channel buttons

ton displays the HF PRESETS page (para 3A.52).

• B2

PAGE Back button

3.53AV.2 HF PRESET Status Window. The HF PRE-

• B3

PAGE Forward button

SET status window displays the current preset channel

3.53AW.1 HF Preset Channel Buttons. The HF PRE-

number, name, and receive/transmit frequencies when

SET CHANNEL buttons provide the capability to select

the HF radio is in Preset mode.

from up to 20 non - modifiable preset channels in the HF

3.53AW HF PRESETS PAGE

radio.

The HF PRESETS page (fig 3-62BJ) provides up to 20

3.53AW.2 PAGE Back and PAGE Forward But-

non - modifiable preset channels for selection, when the

tons. Allows selection between two pages of HF preset

HF radio is in the Preset mode.

channels.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.50

Change 3

TM 1-1520-251-10

3.53AX HF PAGE - ALE MODE

3.53AX.4 NETS Page Button. The NETS page button

displays the HF ALE NETS page (para 3A.54).

The HF ALE Mode (fig 3-62BK) provides specific controls

and status when the HF radio is in the ALE mode.

3.53AX.5 CALL ADDRESS Page Button. The CALL

ADDRESS page button displays the HF CALL ADDRESS

page (para 3A.57).

3.53AX.6 ABORT Button. The ALE ABORT button

provides the capability to abort any ALE function in prog-

ress.

3.53AX.7 ALE Status Window. The ALE status win-

dow displays the current ALE net number, name, call ad-

dress, and self address, when the HF radio is in ALE

mode.

3.53AY HF ALE NETS PAGE

The HF ALE NETS page (fig 3-62BL) provides up to 20

non - modifiable ALE nets for selection.

LBA5148

Figure 3-62BK. HF Page - ALE Mode

The HF page contains the following unique buttons when

in ALE mode:

• L3

ALE HOLD/SCAN button

• L4

XMIT TIME button

• L5

SYNC button

• R1

NETS page button

• R2

CALL ADDRESS page button

• B4

ABORT button

LBA5149

3.53AX.1 ALE HOLD/SCAN Button. The ALE HOLD/

Figure 3-62BL. HF ALE NETS Page

SCAN button toggles between HOLD and SCAN.

The HF ALE NETS page contains the following unique

3.53AX.2 XMIT TIME Button. The XMIT TIME button

buttons:

provides the capability to send the HF radio’s current time

over the current ALE net.

• R2 - R6

NET (1 - 5) option buttons

• L2 - L6

NET (6 - 10) option buttons

3.53AX.3 SYNC Button. The SYNC button provides

• B2

PAGE Back button

the capability to synchronize with others on the current

ALE net.

• B3

PAGE Forward button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.51

TM 1-1520-251-10

3.53AY.1 NET (1 - 10) Option Buttons. Option buttons

The HF ECCM Mode page contains the following unique

provide the capability to select from up to 20 non - modifi-

buttons:

able ALE nets in the HF radio.

•

ANTENNA TUNE button

3.53AY.2 PAGE Back and PAGE Forward But-

• L4

SYNC button

tons. Allow selection between two pages of HF ALE

• R2

NET ROLE button

nets.

3.53AZ.1 ANTENNA TUNE Button. Selecting the AN-

3.53AZ HF PAGE - ECCM MODE

TENNA TUNE button initiates tuning of the ECCM scan-

set.

The HF ECCM Mode page (fig 3-62BM) provides specific

3.53AZ.2 SYNC Button. Selecting the SYNC button

controls and status when the HF radio is in the ECCM

initiates an ECCM time synchronization of the ECCM

mode. In ECCM operation the HF radio will frequency hop

scanset.

on a set of frequencies. Each radio in the net must have

the same ECCM data fill and time of day to interchange

3.53AZ.3 NET ROLE Button. The NET ROLE button

voice or data in this mode.

provides the capability to select the Net Role of the own-

ship when the HF radio is in ECCM mode. The multi - state

options are:

• MEMBER, to select Member

• ALT TIME SERVER, to select Alternate Net Time

Server

• TIME SERVER, to select Net Time Server

Member is the default role upon power - up.

3.53BA HF ECCM NETS PAGE

Selecting the ECCM NETS page button calls the ECCM

NETS page to display. The HF ECCM NETS page pro-

vides up to 12 non - modifiable ECCM nets for selection

(fig 3-62BL). The ECCM NETS page status window will

display ECCM NET with the selected number of the se-

lected net.

The HF ECCM NETS page contains the following unique

buttons:

• R2 - R6

NET (1 - 5) options button

• L2 - L6

NET (6 - 10) options button

LBA5150

• B2

PAGE Back button

Figure

3-62BM.

HF Page - ECCM Mode

• B3

PAGE Forward button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.52

Change 3

TM 1-1520-251-10

that would be considered poorer channels. This function

can be terminated prematurely by selecting the ABORT

button.

3.53BB.5 ALL Button. The ALL button sets the call

address to ALL for the current ALE net and allows a call to

all ALE stations in the network.

3.53BB.6 ABORT Button. The ABORT button pro-

vides the capability to abort any ALE function in progress.

3.53BB.7 HF CALL ADDRESS Status Window. The

HF CALL ADDRESS status window displays the current

Call Address selected in the HF radio.

The HF CALL ADDRESS page contains the following

unique buttons when NET is selected:

• L1 - L6

NET CALL ADDRESS buttons

• R3 - R6

NET CALL ADDRESS buttons

• B2

PAGE Back button

• B3

PAGE Forward button

LBA5154

3.53BB.8 NET CALL ADDRESS Buttons. The NET

CALL ADDRESS buttons provide the capability to select

Figure 3-62BQ. HF CALL ADDRESS Page (OTHER

from up to 20 non - modifiable Star Net Call Addresses in

Selected)

the HF radio.

The HF CALL ADDRESS page contains the following

3.53BB.9 PAGE Back and PAGE Forward But-

unique buttons when SPECIAL is selected:

tons. These buttons allow selection between two pages

• T2 - T5

ADDRESS OPTIONS buttons

of HF Star Net Call Addresses.

• R3

DEFAULT button

The HF CALL ADDRESS page contains the following

• R4

SOUND button

unique buttons when AUTO is selected:

• R5

NEXT button

• L1 - L6

AUTO CALL ADDRESS buttons

• R6

ALL button

• R3 - R6

AUTO CALL ADDRESS buttons

• B3

ABORT button

3.53BB.1 ADDRESS OPTIONS Buttons. The AD-

3.53BB.10 AUTO CALL ADDRESS Buttons. The

DRESS OPTIONS buttons provide the capability to select

AUTO CALL ADDRESS buttons provide the capability to

between SPECIAL, NET (Star Net), AUTO, or OTHER

select from up to 20 non - modifiable Auto Call Addresses

call address selection options.

in the HF radio.

3.53BB.2 DEFAULT Button. The DEFAULT button

The HF CALL ADDRESS page contains the following

sets the call address to the default call address for the cur-

unique buttons when OTHER is selected:

rent ALE net.

3.53BB.3 SOUND Button. The SOUND button sets

• L1 - L6

OTHER CALL ADDRESS buttons

the current call address to SOUND and initiates sounding

• R3 - R6

OTHER CALL ADDRESS buttons

on the current ALE net. This function can be terminated

prematurely by selecting the ABORT button.

3.53BB.11 OTHER CALL ADDRESS Buttons. The

3.53BB.4 NEXT Button. The NEXT button sets the last

OTHER CALL ADDRESS buttons provide the capability to

linked with call address for the current net and then tries to

select from up to 100 non - modifiable Other Call Address-

connect on channels in the ranked channel list for the net

es in the HF radio.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.54

Change 3

TM 1-1520-251-10

3.53BC HF SET PAGE

3.53BC.2 LISTEN BEFORE TALK Button. The LIS-

TEN BEFORE TALK button enables/disables the listen

The HF SET page (fig 3-62BR) provides on/off and ancil-

before talk function in the HF radio.

lary controls.

3.53BC.3 LINK PROTECT Button. The LINK PRO-

TECT button enables/disables ALE link protection in the

HF radio.

3.53BC.4 HF POWER Button. The HF POWER button

provides the capability to set the HF radio power output to

LOW, MEDIUM, or HIGH.

3.53BC.5 HF SQUELCH Button. The HF SQUELCH

button provides the capability to set the HF radio squelch

level to 1, 2, 3, 4, or 5, which takes affect when squelch is

enabled from the COMM Panel

3.53BC.6 HF CRYPTO MODE Button. The HF CRYP-

TO button provides the capability to control the operation

of the HF radio’s Crypto device. The button provides the

options of:

• PLAIN, for non - encrypted communication

• CIPHER (for encrypted communication)

• RECEIVE, to receive a Crypto Net Variable

through the RF link process

LBA5155

• OFFLINE, to turn off Crypto device

The Crypto data field on the EUFD is updated when the

Figure

3-62BR.

HF SET Page

mode is changed. The Crypto state is uploadable from the

Data Transfer Cartridge. Upon power up, the last Crypto

state used is restored.

The HF SET page contains the following unique buttons:

3.53BD.7 HF CRYPTO CNV Button. The HF CNV but-

• L1

LISTEN BEFORE CALL button

ton provides the capability to change the HF Crypto Net

• L2

LISTEN BEFORE TALK button

Variable. The button provides 6 (1 through 6) variable op-

• L3

LINK PROTECT button

tions. The HF CNV data field on the EUFD is updated

when the code has been modified. The HF Crypto Net

• L5

POWER button

Variable option may be set via the AMPS. Upon power up,

• L6

SQUELCH button

the last HF Crypto Net Variable option is used.

• R1

CRYPTO MODE button

3.53BC.8 HF CRYPTO UP ARROW Button. The HF

• R2

CRYPTO CNV button

CRYPTO UP ARROW button provides the capability to

• R3

CRYPTO UP ARROW button

scroll up thru the KY - 100’s menu system.

• R4

CRYPTO DOWN ARROW button

3.53BC.9 HF CRYPTO DOWN ARROW Button. The

• R5

BACK button

HF CRYPTO DOWN ARROW button provides the capa-

bility to scroll up thru the KY - 100’s menu system.

• R6

CRYPTO INITIATE button

• B3

FILL INFO button

3.53BC.10 HF CRYPTO INITIATE Button. The HF

• B6

CRYPTO BYPASS button

CRYPTO INITIATE button provides the capability to initi-

ate selections from the KY - 100 menus.

3.53BC.1 LISTEN BEFORE CALL Button. The LIS-

TEN BEFORE CALL button enables/disables the listen

3.53BC.11 BACK Button. The HF BACK button pro-

before call function in the HF radio.

vides the capability to back out of KY - 100 menus.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.55

TM 1-1520-251-10

3.53BC.12 HF FILL INFO Button. Selection of the HF

FILL INFO button commands the HF FILL status window

to display.

3.53BC.13 HF CRYPTO BYPASS Button. The HF

CRYPTO BYPASS button provides the capability to by-

pass the HF radio’s crypto device in case of failure.

3.53BC.14 FILL STATUS Window. The FILL STATUS

window (fig 3-62BS) displays the fill status of data in the

HF radio. The FILL STATUS window is not available while

a fill is in progress.

LBA5157

Figure 3-62BT. HF ZERO Page

The HF ZERO page contains the following unique but-

tons:

• R4

HF ZEROIZE DATA button

• R5

HF ZEROIZE KEYS button

• R6

HF ZEROIZE BOTH button

3.53BD.1 HF ZEROIZE DATA Button. The HF ZER-

OIZE DATA button will zeroize non - key data in the HF ra-

dio. Selection of this button will prompt for a YES or NO

confirmation to initiate the zeroize.

LBA5156

3.53BD.2 HF ZEROIZE KEYS Button. The HF ZER-

OIZE KEYS button will zeroize LP1 and LP2 keys in the

Figure 3-62BS. HF SET Page (FILL INFO Selected)

HF radio. Selection of this button will prompt for a YES or

NO confirmation to initiate the zeroize.

3.53BD HF ZERO PAGE

3.53BD.3 HF ZEROIZE BOTH Button. The HF ZER-

OIZE BOTH button will zeroize all data and keys in the HF

radio. Selection of this button will prompt for a YES or NO

The HF ZERO page (fig 3-62BT) provides controls to zer-

confirmation to initiate the zeroize.

oize either data or keys in the HF radio, for diagnostic pur-

poses.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.56

Change 2

TM 1-1520-251-10

3.53BE ARC-164 HAVE QUICK (HQ) PROCEDURES

When using the TSET segment list for

training, NET numbers are 0z.z25. The

3.53BE.1 Automatic Loading HQ Data.

suffix of 25 specifies that the TSET fre-

quency list in the radio is to be used for

NOTE

hopping. The z.z is any number 0.0 to 1.5

and designates which of the frequencies

• When using the DTU to load HQ WOD

in the list will be used to start hopping.

data into the aircraft, all HQ WOD data is

loaded.

COM - Select.

• HQ FMT data must be entered manually

into the aircraft. There is no DTU upload

UHF - Select.

capability. HQ FMT data is the same data

for the UHF radio.

WOD - Select.

1. DTU - Select MASTER LOAD.

WOD Day number - Enter

Enter WOD Segments1 through 6.

2. DTU DATA COMMUNICATIONS - Select ALL

or MWOD.

UPDATE - Press.

3.53BE.2 Manual Loading HQ Data.

Repeat steps 4 through 6 as necessary until all

NOTE

WOD Segments have been entered.

• The last two digits of the first segment in

WOD - Deselect.

any WOD specifies the hoprate in the FH

mode:

xxx.x00 (slowest)

NET - Enter.

xxx.x25

xxx.x50

10.

CAL DAY - Enter.

xxx.x75 (fastest)

Best results for FH (secure), use hop-

11.

UHF - Deselect when complete.

rates between xxx.x00 or xxx.x25.

• The calendar day (via GPS/RECEIVE

TOD/CAL DAY) number specifies which

WOD segment list the radio will use.

If FMT values are to be entered, perform the

following:

• Operational NET numbers are allocated

as follows:

12. UHF - Select.

yy.y00 - HQ1 Mode

yy.y25 - HQ2 NATO usage

yy.y50 - HQ2 non-NATO countries

13. FMT - Select.

Where y is any number 0 to 9. All other

operational NET number combinations

14. Enter FMT Frequencies1 thru 16.

are illegal.

• Training NET numbers are allocated as

15. UPDATE - Press.

follows:

When using WOD segment lists for train-

16. FMT - Deselect.

ing (first segment in a given WOD must

be 300.0xx), NET numbers are 00.z00.

17. NET - Enter.

Where z is any number 0 to 4; z specifies

which of the frequencies in the WOD seg-

ments hopping will start on.

18. UHF - Deselect.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.57

TM 1-1520-251-10

3.53BE.3 Update FMT.

3.53BE.8 Activation of HAVEQUICK (Frequency Hop-

ping).

1. UHF - Select.

1. Automatic load HQ data (para 3A.60.1).

2. FMT - Select.

2. Manual load HQ data (para 3A.60.2).

3. TRAINING UPDATE - Press.

3. Update WOD or FMT segments in radio (para

4. FMT - Deselect.

3A.62.3).

4. UHF - Select.

5. UHF - Deselect.

5. UHF MODE - Select FH (verify no tone).

3.53BE.4 Receive TOD Signal.

6. UHF - Deselect.

1. UHF - Select (verify correct frequency).

3.53BF EMERGENCY LOCATOR TRANSMITTER

CHECK PROCEDURE

2. RECEIVE - Select, can now receive TOD for the

NOTE

next 60 seconds.

If the UHF GUARD RECEIVER is enabled

during aircraft power up and the ELT warble

3. UHF - Deselect.

tone is not heard, the following check is not

required.

3.53BE.5 Create Cold Start TOD.

EMERGENCY PANEL GUARD button - Press

or manually input 121.500/243.000.

1. UHF - Select.

Guard frequency - Monitor for ELT warble tone.

2. CAL DAY - Enter.

if warble tone is heard:

3. COLD START - Press.

ELT OFF - TEST/ARM/ON switch - Reset OFF -

TEST switch.

4. UHF - Deselect.

3.53BG ARC-201D FM PROCEDURES

3.53BE.6 Create GPS TOD.

NOTE

• Selections on the FM page take 3 to 4

1. UHF - Select.

seconds to complete in changing the

modes of the ARC-201D radio. DO NOT

2. GPS TIME - Press.

make a second or subsequent selection

until the first selection OPERATION IN

PROGRESS is complete.

3. UHF - Deselect.

• In order to send or receive an ERF, using

the MAN hopset, a hopset must be stored

3.53BE.7 Send TOD.

in location 1 in the ARC-201D radio.

• An ERF procedure (ERF SEND or ERF

1. UHF - Select (verify correct frequency).

RECEIVE) WILL NOT work correctly if

the MAN and CUE frequencies are the

2. SEND - Press.

same while in FH/M mode with the MAN

hopset selected. Avoid setting the same

3. UHF - Deselect.

frequency for MAN and CUE.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.58

Change 3

TM 1-1520-251-10

3.53BG.1 Automatic Loading of SINCGARS Data.

3.53BG.3 Set Base Time-of-Day (TOD)/NET (Hopset)

Synchronization.

NOTE

• To ensure all aircraft will use approxi-

The DTU will automatically load the initial

mately the same TOD within ± 4 seconds,

power-up, MAN, and CUE frequencies for

select the CLOCK GPS TIME button.

each radio. It WILL NOT load the hopset

Other methods are permissible but may

require more detailed coordination; any

and lockout set data. This must be done

method used must ensure that the base

through the LMP.

TOD is within ± 4 seconds.

• The base TOD only needs to be set once,

but the ERF SEND/RECEIVE procedure

1. DTU - Select MASTER LOAD.

for final synchronization must be accom-

plished with each Net Control Station

(Hopset) using different base times.

2. DTU DATA COMMUNICATIONS - Select ALL.

•

After TOD synchronization, if the

ARC-201D radio battery backup is

installed with good batteries, the radio will

3.53BG.2 Manual Loading of SINCGARS Data.

hold synchronization for approximately

24 hours after aircraft power is off.

FM - Select.

COM - Select.

RADIO - Select FM1 or FM2 as desired.

FM - Select.

GPS TIME - Press.

FM DATE/TIME - Verify correct time is dis-

RADIO - Select FM1 or FM2 as desired.

played.

If GPS time is unsuccessful or manual time

entry is desired, proceed to step 5

MAN frequency - Enter.

5. FM DATE/TIME - Enter date, hours, and min-

utes in 24 hour format.

CUE frequency - Enter.

If NET (Hopset) Synchronization only is re-

quired, perform the following Cold Start pro-

cedure:

HOPSET - Select to verify loaded hopsets.

6. RADIO - Select FM1 or FM2, if required.

7. Execute ERF SEND/ERF RECEIVE procedure,

HOPSET - Select.

as appropriate, to complete synchronization.

8. Repeat step 7, as necessary, for each different

Net Control Station (Hopset) that will be used.

Repeat steps 3 through 7 for other FM radio, as

desired.

9. Repeat steps 2 through 8 for other FM radio, as

desired.

FM - Deselect.

10. FM - Deselect.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.59

TM 1-1520-251-10

3.53BG.4 ERF Send.

11. Repeat steps 8 or 9 as necessary to complete

ERF transfer for all hopsets and lockout sets de-

FM - Select.

sired.

Automatic Loading of SINCGARS data

12. ERF - Deselect.

(para 3A.62.1).

13. FM - Deselect.

Manual Loading of SINCGARS Data

3.53BG.6 Activate Frequency Hopping Mode.

(para 3A.62.2).

RADIO - Select FM1 or FM2 as desired.

1. FM - Select.

HOPSET - Select MAN.

2. RADIO - Select FM1 or FM2 as desired.

FM MODE - Select FH/M.

3. NET (Hopset) Synchronization (para 3A.62.6) -

ERF - Select.

Verify complete.

FUNCTION - Review.

4. HOPSET - Select desired hopset.

ERF MODE - Select HOPSET or LOCKOUT as

desired.

5. FM MODE - Select FH or FH/M.

10.

HOPSET or LOCKOUT - SET - Select.

6. FM - Deselect.

11.

SEND - Select.

12.

Repeat steps 8 through 10 as necessary to com-

3.53BH COMSEC OPERATION

plete ERF transfer for all hopsets and lockout

sets desired.

3.53BH.1 PRESET EDIT METHOD.

13.

ERF - Deselect.

14.

FM MODE - Set as desired.

1. PRESET EDIT - Select.

3.53BG.5 ERF Receive.

2. EDIT buttons - Select V/UHF, FM, or HF as de-

sired.

1. FM - Select.

2. RADIO - Select FM1 or FM2 as desired.

3. V/UHF - Select.

3. HOPSET - Select MAN.

a. UHF MODE - Select PLAIN or CIPHER.

4. ERF - Select.

b. UHF CNV - Select desired CNV fill number.

5. FUNCTION - Set to Review.

4. FM - Select.

6. ERF MODE - Select hopset or lockout, as direc-

ted.

a. FM1 or FM2 MODE - Select PLAIN or CI-

PHER.

7. RECEIVE - Select.

b. FM1 or FM2 CNV - Select desired CNV fill

8. HOPSET data received - Store in desired stor-

number.

age location.

5. HF - Select.

9. LOCKOUT data received - STORE Select.

a. HF MODE - Select PLAIN or CIPHER.

10. RECEIVE - Deselect.

b. HF CNV - Select desired CNV fill number.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.60

Change 3

TM 1-1520-251-10

3.53BH.2 SET CRYPTO OPERATIONS.

PRESET EDIT - Select.

COM PAGE or MENU PAGE - Select.

EDIT UNIT - Select (Selected on display of

page).

UHF - Select.

a. UNIT ID - Select and edit as desired.

a. SET - Select.

b. CALL SIGN - Select and edit as desired.

b. CRYPTO MODE - Select PLAIN or CI-

EDIT V/UHF - Select.

PHER.

a. VHF FREQ - Select and enter frequency.

c. CRYPTO CNV - Select desired CNV fill

number.

b. UHF MODE - Select CIPHER or PLAIN.

FM - Select.

c. UHF CNV - Select CNV 1 - 6 as desired.

d. UHF HQ NET - Select and enter net ID.

a. SET - Select.

e. UHF FREQ - Select and enter frequency.

b. RADIO FM1 or FM2 - Select.

EDIT FM - Select.

c. CRYPTO MODE - Select PLAIN or CI-

PHER.

a. FM1 MODE - Select CIPHER or PLAIN.

d. CRYPTO CNV - Select desired CNV fill

b. FM1 CNV - Select CNV 1 - 6 as desired.

number.

c. FM1 HOPSET - Select as desired.

HF - Select.

d. FM1 FREQ - Select and enter frequency.

a. SET - Select.

e. FM2 MODE - Select CIPHER or PLAIN.

b. CRYPTO BYPASS - Deselect.

f. FM2 CNV - Select CNV 1 - 6 as desired.

c. CRYPTO MODE - Select PLAIN or CI-

g. FM2 HOPSET - Select as desired.

PHER.

h. FM2 FREQ - Select and enter frequency.

d. CRYPTO CNV - Select desired CNV fill

number.

EDIT HF - Select.

3.53BH.3 IMPROVED DATA MODEM PRESET - NET

a. HF MODE - Select CIPHER or PLAIN.

SETUP.

b. HF CNV - Select CNV 1 - 6 as desired.

3.53BH.4 Automatic Loading of IDM NET Data.

c. PRESET CHAN - Select and enter 1 - 20 for

the desired preset channel.

1. DTU - Select MASTER LOAD.

d. ALE NET - Select and enter 1 - 20 for the

desired ECCM net.

e. ECCM NET - Select and enter 1 - 12 for the

desired ECCM net.

2. DTU DATA COMMUNICATIONS - Select ALL

or IDM.

f. HF RECV FREQ - Select and enter fre-

quency.

3.53BH.5 Manual Loading of IDM PRESET - NET Data.

g. HF RECV EMISSION - LSB or USB as re-

quired.

1. COM - Select.

h. HF XMIT FREQ - Select and enter frequen-

cy.

2. DAY - Select desired day.

i. HF XMIT EMISSION - LSB or USB as re-

3. PRESET - Select.

quired.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3-66.61

TM 1-1520-251-10

9. MODEM - Select.

NOTE

• A maximum of 16 subscribers/team

NOTE

members of which 8 can be primary

Lower baud rates for the Longbow protocol

members

(including ownship) are

may improve long range digital communica-

allowed when the protocol of the selected

tions.

preset is Longbow.

• Valid Longbow and Tacfire member sub-

scriber numbers range from 0 - 39, A - Z,

10.

MODEM PROTOCOL - Select as required.

1A - 1Z, 2A - 2Z, and 3A - 3I.

a. LONGBOW - Select and set parameters as

13.

NET Member location (1 - 15) - Select the de-

required.

sired location.

(1) AUTO ACK - Select.

a. MEMBER EDIT DEL - Select to clear mem-

ber data as desired.

(2) RETRIES - Select.

b. MEMBER EDIT C/S - Select and enter call-

sign as desired.

(3) BAUD RATE - Select.

c. MEMBER EDIT SUB - Select and enter

subscriber ID for Longbow or Tacfire as re-

b. TACFIRE - Select and set parameters as

quired.

required.

d. MEMBER EDIT TEAM - Select or deselect

(1) RETRIES - Select.

as desired.

e. MEMBER EDIT PRI - Select or deselect as

(2) BAUD RATE - Select.

desired.

14.

NET Member location (1 - 15) - Repeat step 13 a

(3) AUTH - Select.

through e as desired for other members.

(4) BLOCK - Select.

15.

NET - Deselect when completed.

NOTE

• The Longbow Protocol is sometimes re-

If operating with crypto equipment, the mini-

ferred to as the AFAPD protocol.

mum preamble time that is functional is 0.7

seconds.

• IDM Transmit Select must be used to se-

lect a radio with a valid IDM Net before

(5) PREAMBLE - Select.

transmission. The SEND selection will

not be displayed if the selected radio

does not have a valid IDM Net.

(6) MONITOR - Select.

• IDM messages capable of being trans-

mitted from the TSD or FCR displays will

(7) XMIT RADIO - Select.

only have the SEND selection displayed

if the member(s) have been selected.

11. PRESET EDIT - Deselect.

Member(s) will only be displayed on TSD

RPT display if they have been designated

12. NET - Select.

as primary members.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.62

Change 3

TM 1-1520-251-10

Table 3-3C.

Messages

RADIO

Message Format

AFAPD

ATHS

N/A

Protocols

LONGBOW

TACFIRE

VHF/ARC - 186

UHF/ARC - 164

FM/ARC - 201D

AN/ARC - 220HF

MESSAGE

TSD REC

REC

FREE TEXT

X*3

MISSION 1 or 2

ALL IDM CEOI

WAYPOINT files

AREAS files

LINES files

INDIVIDUAL ROUTE file

ALL ROUTES file

TGT/THREATS files

CONTROL MEASURES files

LASER CODES (PRF only)

WAYPOINT/HAZARD

CONTROL MEASURE

TGT/THREAT

BDA (SHOT - AT)

BDA QUERY

FCR TARGET(S)

PRESENT POSITION

PRESENT POSITION QUERY

FARM

FARM QUERY

PRIORITY FIRE ZONE(S)

NO FIRE ZONE(S)

FCR RFHO

ATHS MESSAGES

X*2

X*1

PREPLANNED TEXT MESSAGES

X*3

NOTE 1

Individual ATHS messages are supported, but because Tacfire is not integrated, messages are

addressed in the context of a single ATHS message.

NOTE 2

ATHS messages have not been broken out for TSD REC function.

NOTE 3

ATHS messages are accessed directly from the ATHS page.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

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Table 3-3D. To Transmit LONGBOW Messages

TYPE OF MESSAGE

MPD SELECTIONS/ACTIONS

TO SEND MESSAGE

RF Target Handover

After FCR scan, on FCR display

Select PRI member, then SEND

select NTS. Select RFHO

FCR Targets - All

TSD RPT TGT ALL

Select PRI member, then SEND

FCR Targets - Priority

TSD RPT TGT PRI

Select PRI member, then SEND

FCR Targets - Single or Multiple

TSD RPT TGT Cursor select single

Select PRI member, then SEND

or multiple FCR target icons

Shot At - All

TSD RPT BDA ALL

Select PRI member, then SEND

Shot At - Ownship

TSD RPT BDA OWN

Select PRI member, then SEND

Mode MSG to SEND

Shot At - Query

TSD RPT BDA OWN

Select PRI member, then SEND

Mode MSG to RQST

Pres Posn Report

TSD RPT PP

Select PRI member, then SEND

Mode MSG to SEND

Pres Posn Query

TSD RPT PP

Select PRI member, then SEND

Mode MSG to RQST

FARM Report

TSD RPT FARM

Select PRI member, then SEND

Mode MSG to SEND

FARM Query

TSD RPT FARM

Select PRI member, then SEND

Mode MSG to RQST

Single Stored Target/Threat

TSD POINT XMIT

Select PRI member, then SEND

Use cursor to select or point data

entry method to select target or

threat

Single Waypoint/Hazard

TSD POINT XMIT

Select PRI member, then SEND

Use cursor to select or point data

entry method to select

waypoint/hazard

Single Control Measure

TSD POINT XMIT

Select PRI member, then SEND

Use cursor to select or point data

entry method to select control

measure

Zones - Priority Fire

TSD BAM PF

Select PRI member, then SEND

Zones - No Fire

TSD BAM NF

Select PRI member, then SEND

Zones - All

TSD BAM BOTH

Select PRI member, then SEND

Freetext

COM MSG SEND FREETEXT

SEND

SOURCE IDM Enter freetext

Waypoints file

COM MSG SEND CURRENT

SEND

MISSION WAYPOINTS

Routes file

COM MSG SEND CURRENT

SEND

MISSION ROUTE ALL

Single route

COM MSG SEND CURRENT

SEND

MISSION ROUTE, Select desired

Route

Laser codes

COM MSG SEND CURRENT

SEND

MISSION LASER CODES

Comm Data All

Not implemented in Lot 7

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.64

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Table 3-3D. To Transmit LONGBOW Messages - continued

Control Measures file

COM MSG SEND CURR MISSION

SEND

CONTROL MEASURES

Boundary/Phase Lines file

COM MSG SEND CURR MISSION

SEND

LINES

Engagement Areas file

COM MSG SEND CURR MISSION

SEND

AREAS

Stored Targets/Threats file

COM MSG SEND CURR MISSION

SEND

TGT/THRT

Current Mission - All

COM MSG SEND CURR MISSION

SEND

ALL

MISSION 1 - All files

COM MSG SEND MISSION 1

SEND

MISSION 2 - All files

COM MSG SEND MISSION 2

SEND

Table 3-3E. To Transmit HF Messages (Source HF)

TYPE OF MESSAGE

MPD SELECTIONS/ACTIONS

TO SEND MESSAGE

Freetext

COM MSG SEND FREETEXT

SEND

SOURCE HF Enter freetext

Present Position (PP)

COM MSG SEND - SOURCE HF

SEND

PP Select

Pre Program Text (1 of 25)

COM MSG SEND - SOURCE HF

SEND

Select Pre Programmed Text Msg

3.53BI ATHS - TACFIRE IMPROVED DATA MODEM

NOTE

The Advanced Field Artillery Tactical Data

System (AFATDS) is the successor of the

TACFIRE computer. AFATDS is backward

3.53BI.1 ATHS-TACFIRE Mission Capabilities. The

compatible with the legacy TACFIRE com-

IDM (MD-1295/A Processor Interface Unit [PIU] pro-

puter and the IDM’s ATHS - TACFIRE (TAC-

cesses AFAPD (LONGBOW) and TACFIRE protocol mes-

FIRE mode) message format.

sages. The AH-64D’s 1553B bus integrated TACFIRE

protocol is programmed to continuously receive and share

The ATHS-TACFIRE is designed to maintain current mission

dynamic data to and from the bus. Data from the bus is

status for up to eight active airborne fire missions, two active

automatically input into many of the data fields that com-

artillery fire missions, and two preplanned artillery fire mis-

prise the various messages. Received data is placed on

sions. The IDM retains all ATHS-TACFIRE mission essential

the bus for SP, DP, and WP usage e.g. ATHS - TACFIRE

data in nonvolatile storage and will store 12-48 (1-4 TAC-

target grid coordinate translated to 1553B T-50 target

FIRE radios) previously received ATHS - TACFIRE mes-

data and remote Hellfire automatic weapon moding. Spe-

sages. The system also supports the shooter/designator exe-

cific to the AH- 64D’s TACFIRE integration, the term ATHS

cution of a digital remote HELLFIRE mission and other

is synonymous with TACFIRE; ATHS - TACFIRE. The orig-

airborne fire missions specifying rockets, gun, or HELLFIRE

inal ATHS was a proprietary limited (TACFIRE only) self

direct. The ATHS-TACFIRE supports digital artillery fire mis-

contained modem. The IDM, along with its updated TAC-

sions as the Forward Artillery Aerial Observer (FAAO) and

FIRE (AIR mode) protocol software, is the successor of

transmits/receives spot situation reports, battle damage as-

the former ATHS modem. The IDM’s TACFIRE protocol

sessments, and casualty reports. Team situational aware-

software is backward compatible with the legacy ATHS,

ness capabilities are enhanced by the ability to track team

handheld Digital Messaging Device (DMD), Forward

member Fuel, Ammo, Rockets, and Missile (FARM) status

Entry Device (FED), and the Tactical Fire (TACFIRE) com-

along with the ability to track the present position of up to 15

puter.

team members per query.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

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3.53BI.2 Physical Description. The IDM is composed

a. ATHS (INDEX) Page. The ATHS - TACFIRE is ei-

of a single line replaceable unit (LRU) that receives infor-

ther initialized automatically through a DTU load or manu-

mation via the 1553B bus. Information is received from the

ally through the ATHS top level (INDEX) page (fig

DMS, EGI, SP, WP, onboard sensors, Multipurpose Dis-

3-62BU). An automatic initialization is contingent on a

play’s (MPD), Keyboard Unit (KU), and through the receipt

TACFIRE NET having been constructed on the AMPS and

of digital messages. When ATHS is selected, the pro-

downloaded to the DTC. The top level ATHS page is ac-

cessed information may be displayed on either of the

cessed through either the PLT’s or CPG’s top level COM

PLT’s or CPG’s MPD’s. ATHS - TACFIRE messages may

page by selecting the ATHS button. Upon selecting the

be transmitted to and from other ATHS - TACFIRE capable

ATHS button, the ATHS - TACFIRE page last displayed in

aircraft, artillery TACFIRE/FIST systems, handheld data

that crew station will be recalled and displayed. Following

message devices (DMD’s), and SINCGARS configured

an aircraft startup, the initial ATHS button selection will al-

AMPS computers. ATHS-TACFIRE formats complex

ways display the top level ATHS page. The top level

messages such as artillery fire requests, reports, emer-

ATHS page is also referred to as the INDEX page. Re-

gency broadcasts, automatic reporting of status, move-

gardless of what specific ATHS page is currently dis-

ment commands, and general free text messages with au-

played, selecting the INDEX button will command the IN-

tomatic or manual authentication.

DEX page (top level ATHS page) to display.

ATHS - TACFIRE protocol incorporates two modes of op-

eration: AIR (AIRBORNE) NET mode; and TFR (TAC-

FIRE) NET mode. If an ATHS-TACFIRE NET is to be

used exclusively between ATHS - IDM aircraft, then AIR

(default) NET mode should be selected. When commu-

nications must be established with the artillery, legacy

ATHS, or DMD, then the TFR NET mode should be selec-

ted. Differences in message format and capabilities be-

tween the AIR and TFR modes exist.

3.53BI.3 ATHS - TACFIRE Initialization.

NOTE

The AH- 64D’s IDM TACFIRE protocol oper-

ates independently from the IDM AFAPD

protocol. If problems are ever experienced

with one IDM protocol, the other protocol will

usually function normally.

LBA5186

The ATHS - TACFIRE system is a legacy method for es-

Figure 3-62BU. ATHS - TACFIRE INDEX

tablishing TACFIRE NETS, MODEM protocol, BAUD

RATE, etc. Complete functionality for establishing TAC-

FIRE NETS, RETRIES, BAUD RATE, AUTH, BLOCK,

The ATHS top level page reserves the data area beneath

PREAMBLE, MONITOR, and XMIT RADIO now exists in

the last two line keys for ATHS - TACFIRE specific caution/

the COM system (para 3.27).

advisories. ATHS top level page caution/advisories in-

clude:

This section still provides a description of the buttons that

• ATHS MESSAGE RECEIVED

reside on the ATHS page as well as describe in detail the

procedures to transmit specific TACFIRE messages.

• ATHS TABLE LOW

A complete and detailed description of the ATHS - TAC-

FIRE subsystem is described in Technical Bulletin

ATHS MESSAGE RECEIVED indicates that an ATHS -

11 - 5895 - 1632 - 10. Refer to Appendix A to obtain the

TACFIRE message has been received. ATHS TABLE

complete description of this Technical Bulletin.

LOW indicates the authentication tables have less than 20

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3-66.66

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available lines remaining. ATHS FAIL indicates the IDM’s

NOTE

ATHS - TACFIRE component has failed.

The EUFD will display an ATHS MSG advi-

sory whenever the IDM receives an ATHS -

A total of eight (8) separate sections may be accessed

TACFIRE message.

from the INDEX page. The 8 sections are displayed with

associated line-keys, a series of dashes, aligned with

b. QUICK Button Function. The QUICK button ap-

specific L1 - L4 or R1 - R4 MPD variable action buttons.

pears on every ATHS - TACFIRE page. The QUICK func-

The 8 sections include:

tion provides direct access to any one of the following five

operational ATHS - TACFIRE pages.

• AIR REQ

• Summary Page of Highest Priority Received

• ARTY REQ

Message

• MOVEMENT

• Airborne Mission Summary Page

• Artillery Mission Summary Page

• REPORTS

• Mayday Message Summary Page

• RSVD MSG

• Quick Menu Page

• START

c. START Pages - Description.

• STATUS

• MSGS/FTXT

NOTE

• ATHS - TACFIRE NETS are commonly

In addition to the 8 line key sections three other unique

constructed using the AMPS during pre -

buttons are displayed on the INDEX page:

mission planning. When an AMPS is not

used, ATHS-TACFIRE NETS can be

• QUICK

constructed through the COM NET edit

• SEND

pages.

• HFMSN

• An ATHS-TACFIRE NET established

solely through the AH - 64D’s COM NET

The QUICK button provides direct access to various pre-

edit pages will not support the Auto Ac-

vious/preset messages. The SEND R5 button is displayed

knowledge selection.

on most of the ATHS pages and is only functional when a

• The ZEROIZE line - key button does not

destination subscriber data ID bloc is displayed in L1. The

clear AFAPD messages or communica-

HFMSN button should be selected (boxed) when conduct-

tion NETS.

ing a remote Hellfire mission between AH - 64D aircraft.

The START pages (fig 3-62BV) are also available to

The ATHS - TACFIRE employs a set of ASCII characters

manually initialize the IDM’s ATHS - TACFIRE functional-

to denote operator interface functionality of specific fields.

ity. The pages maintain the files for communication, loca-

An asterisk (*) indicates a current active field. An arrow (>)

tion, GO/NO GO test, time, and authentication. Commu-

that points away from an associated MPD button indicates

nication subscriber identifiers are entered as ORIGIN

that manual KU data entry is allowed. An arrow (<) point-

(ORIG), TEAM (TM), and BROADCAST (BC). Additional-

ing to the MPD button signifies a new page button. An ar-

ly, a ZEROIZE line - key button is provided in the START

row pointing upward (^) besides the associated MPD but-

pages. This ZEROIZE line - key button clears all data and

ton indicates that selecting the button will cycle through

table entries from the IDM’s ATHS - TACFIRE component.

alternative fields. A double pound sign (##) indicates a nu-

The START pages also include six message preset selec-

meric entry button. A double ampersand sign (@@) indi-

tions, six movement preset selections, and a bulk data

cates alpha character entry button.

load send/receive message capability.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

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HELICOPTER, ATTACK, AH-64D LONGBOW APACHE. TECHNICAL MANUAL (2002) - page 5