POCKET GUIDE TM 11-5820-890-10-6

SINCGARS ICOM GROUND RADIOS

Used with

Automated Net Control Device (ANCD);

Precision Lightweight GPS Receiver (PLGR);

Handheld Remote Control Radio Device (HRCRD)

OPERATOR'S

POCKET GUIDE

RADIO SETS

MANPACK RADIO

(AN/PRC-119A/D/F)

(NSN: N/A) (EIC: N/A)

VEHICULAR RADIOS

(AN/VRC-87A/D/F THRU

AN/VRC-92A/D/F)

(NSN: N/A) (EIC: N/A)

Approved for public release; distribution is unlimited.

Headquarters, Department of the Army

1 December 1998
POCKET GUIDE TM 11-5820-890-10-6

LITHIUM BATTERY WARNINGS

Your manpack radio uses a lithium battery as the main power source. All SINCGARS

radios use a lithium battery for the HUB, and the ANCD uses three 3-volt lithium batteries

for power. Lithium batteries contain pressurized toxic, sulfur dioxide gas. Batteries can

explode; treat them with CARE!

For safety's sake, follow these rules when handling lithium batteries:

Do NOT ABUSE LITHIUM BATTERIES IN ANY WAY.

Do NOT HEAT, SHORT CIRCUIT, CRUSH, PUNCTURE, OR CUT THEM.

Do NOT USE ANY LITHIUM BATTERY SHOWING SIGNS OF DAMAGE.

Do NOT TEST THEM FOR STATE OF CHARGE (MAINTAINER TASK ONLY).

Do NOT ATTEMPT TO RECHARGE LITHIUM BATTERIES.

Do NOT PLACE THEM IN ORDINARY TRASH. TURN IN USED BATTERIES TO UNIT

SUPPLY, OR WHEN OPERATIONAL FOLLOW UNIT SOP REGARDING

DISPOSAL

Do NOT USE A HALON-TYPE FIRE EXTINGUISHER ON A LITHIUM FIRE INCASE OF FIRE, DOUSE WATER, USE CO2 OR CLASS D EXTINGUISHER.

Do NOT STORE BATTERIES IN UNUSED EQUIPMENT.

Do NOT STORE LITHIUM BATTERIES WITH OTHER HAZARDOUS MATERIALS.

Do NOT STORE LITHIUM BATTERIES NEAR FLAME OR HEAT.

If battery compartment becomes hot to touch, if it hisses or makes a burping sound, or if

you smell an irritating gas:

TURN OFF EQUIPMENT

LET EQUIPMENT COOL FOR AT LEAST AN HOUR

AFTER EQUIPMENT IS COOL REMOVE BATTERY/BATTERIES

INSTALL NEW BATTERY/BATTERIES, RESUME OPERATING

If you experience a safety hazard or incident, notify your unit Safety Officer; file Form 368

(Product Quality Deficiency Report), and notify CECOM Safety Office, Ft. Monmouth, NJ

(DSN 995-3112)
POCKET GUIDE *TM 11-5820-890-10-6

TABLE OF CONTENTS

SUBJECT PAGE

SECTION I: INTRODUCTION

Purpose.............................................................................................................. 1

Scope................................................................................................................. 1

Designations ...................................................................................................... 1

Auxiliary Items .................................................................................................... 1

References ........................................................................................................ 2

Abbreviations ..................................................................................................... 2

SECTION II: GRAPHICS

RT-1523/A/B Keypads ....................................................................................... 3

RT-1523C/D Keypads ........................................................................................ 4

RT-1523E Keypad.............................................................................................. 5

RT-1523E Front Panel........................................................................................ 6

ANCD Front View .............................................................................................. 7

ANCD Keypad.................................................................................................... 7

PLGR.................................................................................................................. 8

SECTION III: PRIMARY OPERATOR/PREPARATION TASKS

RT-1523E (ASIP) Preparation

1. Select RT Preparation Settings from MENU............................................... 9

Summary of Primary Operator Tasks..................................................................... 10

1. Load SC Frequencies into SINCGARS RT................................................. 11

2. Load COMSEC/FH Data/Sync Time Using ANCD...................................... 12

3. Perform Hot Start Net Opening................................................................... 13

4. Perform Passive Late Net Entry................................................................. 13

5. Obtain SOI Information From ANCD........................................................... 14

____________________

* Supersedes TM 11-5820-890-10-6, dated 1 January 1998

i
POCKET GUIDE TM 11-5820-890-10-6

SECTION IV: SPECIAL OPERATOR TASKS

SUBJECT PAGE

Summary of Special Operator Tasks ..................................................................... 19

1. Transfer COMSEC/FH Data/Sync Time from ANCD to ANCD................... 21

2. Transfer Full or QREF SOI from ANCD to ANCD....................................... 22

3. Perform Cold Start Net Opening................................................................. 25

4. Receive Net Update ERF from NCS........................................................... 26

5. Perform CUE and ERF Late Net Entry....................................................... 27

6. Conduct RXMT Operations ........................................................................ 28

7. Send an ERF as Part of RXMT Operation.................................................. 30

8. Change Net ID............................................................................................ 31

9. Use SIP/ASIP RT as an RCU..................................................................... 32

10. Use SIP/ASIP RT to Send Data Via RS-232 Mode..................................... 33

SECTION V: PLGR TASKS

1. Obtain Date and GPS Zulu Time from PLGR............................................. 34

2. Manually Load PLGR Date and Zulu Time Into ANCD............................... 35

3. Load PLGR Date and Zulu Time Into RT.................................................... 37

4. Load Key Into PLGR from ANCD................................................................ 39

SECTION VI: HRCRD OPERATIONS

General .............................................................................................................. 41

Radio Control ..................................................................................................... 41

Volume ............................................................................................................... 41

Back Lights ........................................................................................................ 41

Cabling ............................................................................................................... 41

RT Keypad ......................................................................................................... 41

Vehicular Use..................................................................................................... 42

SECTION VII: PMCS

1. SINCGARS RADIOS.................................................................................. 43

2. HRCRD...................................................................................................... 47

ii
POCKET GUIDE TM 11-5820-890-10-6

SECTION I. INTRODUCTION

PURPOSE: To provide operators of SINCGARS manpack and vehicular RT's

including SIP/ASIP version radios with quick reference memory

joggers to assist in task performance during training and

operations. The primary goal is to prevent radio operators from

having to memorize any tasks, steps, or other procedures. Through

reference to this pocket guide, the properly trained SIP operator

should be able to perform, without assistance, all primary operator

tasks, and those special tasks for which especially trained.

SCOPE: This pocket guide covers the five primary operator tasks and ten

special tasks. Tasks are presented in flowchart format, with

minimum essential explanation. In addition to normal SINCGARS

tasks, SIP/ASIP specific, Special Operator's 9-10 tasks, this guide

includes essential graphics, SINCGARS PMCS, Handheld Remote

Control Radio Device (HRCRD) operations, and selected tasks

pertaining to the Precision Lightweight GPS Receiver (PLGR).

Operators are to refer to the SINCGARS Operator's Manual, TM

11-5820-890-10-8, and other appropriate TM's, when additional

information is needed.

DESIGNATIONS: SlP radio configurations carry a "D" designation. Unit authorized

SIP radio configurations will receive only SIP components: RT-1

523C/D and AM-7239C/D. ASIP radio configurations carry a "F"

designation. Unit authorized ASIP radio configurations will receive

only ASIP components RT-1523E and AM-7239E. Other

SINCGARS radios will carry a "A" designation.

AUXILIARY ITEMS The Automated Net Control Device (ANCD) and ITEMS: PLGR are

considered to be authorized and employed in conjunction with

SINCGARS.

1
POCKET GUIDE TM 11-5820-890-10-6

REFERENCES: TM 1-5810-394-14&P, ANCD Opr and Unit Maint

TM 11-5810-890-10-7, NCS Pocket Guide

TM 11-5820-890-10-8, SINCGARS Opr's Manual

TM 11-5825-291-13, PLGR Opns and Maint

ABBREVIATIONS:

ANCD................................................................. Automated Net Control Device

BPS ...........................................................................................Bits Per Second

CID....................................................................................Combat Identification

COMSEC....................................................................Communications Security

CT.....................................................................................................Cipher Text

DTD.................................................................................. Data Transfer Device

EDM................................................................................. Enhanced Data Mode

EXT....................................................................................................... External

FH........................................................................................ Frequency Hopping

GPS...........................................................................Global Positioning System

HRCRD...............................................Handheld Remote Control Radio Device

ICOM.........................................................Integrated Communications Security

INC.........................................................................................Internet Controller

INTCM...................................................................................................Intercom

KEK .....................................................................................Key Encryption Key

LDE..........................................................................................Local Data Entry

N...........................................................................New or Enhanced Data Mode

PCKT..................................................................................... Packet Data Mode

PLGR.........................................................Precision Lightweight GPS Receiver

PT........................................................................................................Plain Text

RCU.................................................................................... Remote Control Unit

RCU (RT) ...........................................................................SIP used as an RCU

SA...................................................................................Situational Awareness

SIP...................................................................... System Improvement Program

TEK ................................................................................. Traffic Encryption Key

TFOM................................................................................. Time Figure of Merit

VAA.........................................................................Vehicular Amplifier Adapter

2
POCKET GUIDE TM 11-5820-890-10-6

SECTION II. GRAPHICS

RT-1523/A/B FRONT PANEL

RT-1523/A/B KEYBOARD

3
POCKET GUIDE TM 11-5820-890-10-6

RT-1523C/D (SIP) FRONT PANEL

RT-1523C/D (SIP) KEYBOARD

NOTES:

1] Four keys of SIP keypad are redesignated.

2] SA and CID keys are not used.

3] RCU key enables use of SIP RT as an RCU.

4] GPS key enables loading of GPS time.

4
POCKET GUIDE TM 11-5820-890-10-6

RT-1523E (ASIP) KEYBOARD

NOTES:

1] Six keys of ASIP keypad are redesignated.

2] SA, CID and GPS keys are not used.

3] RCU key enables use of ASIP RT as an RCU.

4] MENU key scrolls through MENU selections.

5] FREQ/Backlight key controls backlight brightness. RT must be

in SQ ON and CHG scrolls level.

5
POCKET GUIDE TM 11-5820-890-10-6

RT-1523E (ASIP) FRONT PANEL

6
POCKET GUIDE TM 11-5820-890-10-6

FRONT VIEW >

REAR VIEW >

(cover open)

AUTOMATED NET CONTROL DEVICE, AN/CYZ-10

7
POCKET GUIDE TM 11-5820-890-10-6

PRECISION LIGHTWEIGHT GPS RECEIVER (PLGR)

8
POCKET GUIDE TM 11-5820-890-10-6

SECTION III PRIMARY OPERATOR/PREPARATION TASKS

PREPARATION TASK 1: Select RT Preparation Settings from MENU

SUBTASKS ACTION RESULTS

a. Set RT Volume (1) Press MENU Press Menu to display Vol

(2) Press Digit (1-9) level

for Vol Setting (0) for Display reads WHSP if 0

Whisper Mode selected

b. Set RT Channel (1) Press MENU (until Display reads (1-6), (Q)

CHAN) for CUE, (M) for Manual

(2) Press Digit (1-6)

for Channel desired

(0) for MAN 17) for

CUE

c. Set RT Power (1) Press MENU (until Display reads (LO, M, HI,

PWR) PA)

(2) Press CHG for

desired PRW setting

d. Set RT Mode (1) Press MENU (until Display reads (SC, FH,

MODE FHM

(2) Press CHG for

desired MODE

e. Set COMSEC (1) Press MENU (until Display reads (PT, CT, TD,

CMSC) RV)

(2) Press CHG for

desired CMSC setting

f. Set Backlight (1) Place RT in SQ Backlight lights (4 settings

ON (2) Press Low to High, then OFF)

FREQ/Backlight

(3) Press CHG until

desired setting

DEFAULT SETTINGS ARE VOL (5), CHAN (1), PWR (LO), MODE (FH), COMSEC (CT)

9
POCKET GUIDE TM 11-5820-890-10-6

SECTION III. PRIMARY OPERATOR TASKS

PRIMARY TASK 1: Load SC Frequencies into SINCGARS RT:

Required for Cold Start Net Opening, CUE and ERF method of

late net entry, single channel communications, and SC

frequency updates.

PRIMARY TASK 2: Load COMSEC/FH Data/Sync Time Using ANCD:

Required for Hot Start Net Opening, Cold Startnet opening (less

sync time), and COMSEC/FH Data updates (less sync time).

PRIMARY TASK 3: Perform Hot Start Net Opening:

Required when net has been down and is now to become

operational at a prescribed time; and may be used when an

individual operator has been out of the net for any reason and

wishes to re-enter the net without resorting to CUE and ERF.

PRIMARY TASK 4: Perform, Passive Late Net Entry:

Required when RT sync time becomes more than 4 seconds

but less than one minute off from net sync time; enables

individual operator to re-enter net without action on the part of

the NCS.

PRIMARY TASK 5: Obtain SOI Information from ANCD:

Required when SOI info on Nets, Suffixes, Pyro/Smoke, or

Sign/Countersign is needed, may be used to view QREF related

items in Group, Time Period, Set, Find, and Memo; used to

obtain net ID of net not in loadset being used.

NOTE. ANCD displays are shown as dark bordered boxes RT

messages state “Display shows,” without the dark border

10
POCKET GUIDE TM 11-5820-890-10-6

PRIMARY TASK 1: Load Single Channel Freq in SINCGARS RT

SUBTASKS ACTION RESULTS

a. Prepare to (1) Obtain proper freqs from (Load CUE freq only if directed)

perform task ANCD*

(2) Set RT controls COMSEC to

PT MODE to SC FCTN to ZFH, TST, and then to LD

CHAN to MAN, CUE, or 1-6 RT display shown [GOOD] (or

see unit maintainer)

b. Load SC (1) Press:

Freq FREQ Display shows [00000] or

[30000]

CLR Display shows [ _ _ _ _ _ ]

XXXXX (Freq) Display shows SC freq entered

STO Display blinks (data is stored)

(2) Repeat Step b-1 for each (As directed by NCS or unit

freq needed SOP)

(3) Set Loading of SC freq is

FCTN to SQ ON complete

*In units using secure, FH nets, operators normally load on a routine basis only a

MANSC frequency. CUE and CHAN 1-6 SC frequencies are loaded only as needed or

directed

**Only NCS and Alt NCS routinely load a CUE frequency

***RT settings for RT-1523E are set via MENU

11
POCKET GUIDE TM 11-5820-890-10-6

PRIMARY TASK 2: Load COMSEC/FH Data/Sync lime Using ANCD*

NOTE: Set RT controls to CT, LD, FH, MAN, and DATA OFF (There

is no requirement to clear a COMSEC alarm.)*****

1) select 6) Set FCTN switch to LD

Soi Radio sUpervisor on RT [↓]

2) Send Receive Database 7) Do you want to include

sEp Comsec Time time?  (Y/N)

3) send to 8) Press [LOAD] on RT

Radio Ancd Stu Pc

4) select: **  iCom Nonicom 9) Transfer in progress/

Abn Rcu Haveq Transfer successful

5) Connect to RT AUD/FILL 10) RT cannot accept

Connector ***[↓] time from ANCD

*The ICOM Fill Procedure loads the radio with COMSEC keys, FH

data, and sync time for all six SINCGARS channels.

**Select “Rcu” to fill an RCU, C-11561, with COMSEC keys.

Procedure is the same as that shown for “iCom.”

***Throughout this manual, when [ ̄] appears in the lower right comer

of a screen, you must press the down arrow to proceed.

 Load time as part of ICOM Fill during net openings and Hot Start

Late Net Entry only, not net updates.

** ***RT settings for RT-1523E are set via MENU.

12
POCKET GUIDE TM 11-5820-890-10-6

PRIMARY TASK 3: Perform Hot Start Net Opening

SUBTASK ACTION RESULT

a. Load RT with

COMSEC/FH Date and

Time*

(See Primary Task 2 for

ICOM Fill)

COMSEC/FH data and

time load into all 6

channels of the RT

b. Enter net Call NCS in CT, FH and

request to enter net

Hot Start net opening is

complete*

*All SIP radios will accept time from an ANCD as part of a loadset and from a PLGR as a

separate loading of time.

PRIMARY TASK 4: Perform Passive Late Net Entry (LNE)

SUBTASK ACTION RESULT

Use Passive Method of (1) Press:

Late Net Entry

Entry FREQ Display shows

[F XXX]

Display shows

SYNC [LF XXX]

(2) Wait for radio traffic Display shows

to be heard [F XXX] ("L" is dropped)

(Do not press PTT)

(3) Call NCS and Passive LNE is complete*

re-enter net

*If traffic is not heard for 3 minutes or so after using Passive Late Net Entry method, use

the Hot Start procedure or CUE and ERF method

13
POCKET GUIDE TM 11-5820-890-10-6

PRIMARY TASK 5: Obtain SOI Information from ANCD

(Assumes QREF has been loaded into Operator's ANCD)

1. To look at any of the QREF items, perform the following steps:

select

Soi Radio sUpervisor

qRef* Group Net sufX Pyro

Tmpd Set C/s Find Memo

*Last item viewed appears in display

2. QREF displays up to 40 items from Net, sufX, Pyro, or C/s available by scrolling. For

each net stored as QREF Items, the following information is available to the QREF user:

net name, CUE frequency, MAN frequency, time period, call sign, net ID, and call word.

To view items in Group, Tmpd, Set, Find, and Memo, as extensions of QREF entries,

return to the main SOI menu and select the type of information needed. In viewing QREF

or extension entries, be sure you have the correct time period selected.

3. Rules to remember in obtaining SOI information from the ANCD:

ABORT Causes ANCD to return to SOI menu

Arrow down (shown as [↓] You must press the down arrow to go to the next

screen

Arrow right/arrow left Allows viewing of additional information and return

Arrow up/arrow down Allows viewing of each item

DELETE To delete SOI set, enter SOI, then Set, and press

DELE key

ENTER (shown as

[ENTR])

Causes activation of the entry you have selected

14
POCKET GUIDE TM 11-5820-890-10-6

Hot keys Capital letter of selection (eg, sufX). Allows direct shift

from QREF to full SOI file category

"J" key (for JUMP) In Find, causes ANCD to continue search for next item

"K" key (for KEEP) Causes item being viewed to be stored in QREF file

MAIN MENU Returns you to SOl/RADIO/SUPERVISOR menu

PgUP/PgDN Moves to top or bottom of list

ZERO (red button) Used in combat emergency only; DO NOT use for

deletions

4. Following are examples of the information which may be available In a full SOI

information file.*

a. GROUP. (Group)

qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo

TO1 Set 521D DEM 003

003 5211D SPT

*Once a time period has been selected, the same

time period will appear each subsequent time the

ANCD is turned on. Thus, you need to change the

time period only when advancing to the next day.

To change the time period, enter TMPD and make

time period selection.

15
POCKET GUIDE TM 11-5820-890-10-6

b. NET: (Net)

qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo

T06 1-4 FA BN W7T

C81975 M74800 0424

T06 1-4 FA BN W7T

Callwrd. BULLDOG'

*Obtained by pressing right arrow. (Press left

arrow to return)

c. SUFFIX: (sufX)

qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo

Commander 02

COFSIXO 27

d. PYRO (Pyro)

qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo

GREEN SMOKE**

[↓/→]

Safe to land or drop

supplies here**

**Meaning of signal is obtained by pressing right

arrow. (Press left arrow to return.)

16
POCKET GUIDE TM 11-5820-890-10-6

e. TIME PERIOD: (Tmpd)

qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo

Enter Time Pd

=> # #

f. SET: (Set)*

qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo

select

Choose Send Receive

Scroll ↑/↓, press

ENTR to select set [↓]

Set: (name/nr)

Edn: (name/tp) [ENTR]

*A set may be deleted by entering Set and

pressing the DELE key on the ANCD

g. SIGN/CNTRSIGN: (C/s)

qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo

TOI Sign HARDWOOD

Cntrsign: SNEAKER

17
POCKET GUIDE TM 11-5820-890-10-6

h. FIND:* (Find)

qRef Group Net sufX Pyro

Tmrnpd Set C/s Find Memo

Fnd Net nEbd Sfx Word

Clsgn Grp gRp# Des Frq

*FIND is used with full SOI file for quick location of

item desired. If first item viewed is not the desired

one, press “J" to cause ANCD to continue search.

i. MEMO:** (Memo)

qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo

Memo: 1- 2-

3- 4-

*Each of 4 Memos may be 6 lines of 22 spaces

each. Memos will be included in transfer of SOI

data (QREF or Full SOI File).

18
POCKET GUIDE TM 11-5820-890-10-6

SECTION IV. SPECIAL OPERATOR TASKS

SPEC TASK 1: Transfer COMSEC/FH Data, ANCD to ANCD:

Used when individual operators are required to load their own ANCD

from a shared unit ANCD.

SPEC TASK 2: Transfer QREF SOI Information, ANCD to ANCD:

Used when individual operators are required to load their own ANCD

from a shared unit ANCD.

SPEC TASK 3: Perform Cold Start Net Opening:

Provides NCS an alternate method of net opening, if desired Net

operators respond to NCS direction to receive and store ERF

broadcast by the NCS.

SPEC TASK 4: Receive Net Update ERF from NCS:

Used when NCS needs to update some element of FH data using

electronic transfer means Operator requirements are similar to the

Cold Start Net Opening.

SPEC TASK 5: Perform CUE & ERF Late Net Entry:

Required when sync time in RT is more than 60 seconds different

from that of operational net SIP radio allows up to 100 hours sync

time difference for CUE and ERF late net entry.

19
POCKET GUIDE TM 11-5820-890-10-6

SPEC TASK 6: Conduct RXMT Operations :

Used when one or more net stations are out of normal SINCGARS

range, or an obstacle blocks line of sight communications. (SEE

*NOTE)

SPEC TASK 7: Send an ERF as Part of RXMT Operation:

Used during RXMT operations when required to establish initial

contact with distant station

SPEC TASK 8: Change Net ID:

Used when contact with a non-loadset station is desired. Operator

changes one, two, or all three digits of the net ID.

SPEC TASK 9: Use SIP/ASIP RT as an RCU:

Used when remote control of a radio is required. A SIP/ASIP RT

cannot be used in an RCU configuration when HRCRD is being used

SPEC TASK 10: Send Data Via RS-232 Mode :

Used when data message is to be sent from one computer to

another over a SINCGARS net using a commercial program

containing widely used “Xmodem" file transfer protocol.

*NOTE: DATA RXMT: All date rates except PCKT may be RXMT

with the following provisions.

1. SDM data, TF and AD1: No change to normal RXMT procedures. Radios do not

have to be set in Data mode (data off). Mixed radios at RXMT site or outstations is

permitted.

2. EDM Data: Radios at the RXMT site have to be set to the same EDM data rates as

outstations. ONLY SIP radios can be used at the RXMT site and outstations.

20
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 1: Transfer COMSEC/FH Data, ANCD to ANCD

SOURCE ANCD TARGET ANCD

1) select: 1) select

Soi Radio sUpervisor Soi Radio supervisor

2) Send Receive Database 2) Send Receive Database

sEtup Comsec Time sEtup Comsec Time

3) send to 3) receive:

Radio Ancd Stu Pc Ancd Cfd Stu Pc Mx

4) Loadset Database* Time 4) Loadset Database Time

Key Eset Mwod Key Eset Mwod

5) Do you want to include 5) Want to delete...

time? (Y/N) FH&COMSEC data? (Y/N)

6) Connect to ANCD and 6) Connect to ANCD and

press [SEND](WAIT)** press [RCV)*

7) Transfer in progress/ 7) Transfer in progress/

Transfer successful Transfer successful

*You must enter "DATABASE" to proceed.

**DO NOT press [SEND] until you are ready to

press [RCV]. Then press [RCV] within about 20

seconds of pressing [SEND].

***You must enter 'YES" to proceed.

NOTE: You can clear your ANCD of COMSEC/FH data by

performing Target ANCD Steps 1-5, above, and pressing ABORT

21
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 2: Transfer QREF SOI Information, ANCD to ANCD

SOURCE ANCD TARGET ANCD

1) select: 1) select:

Soi Radio sUpervisor Soi Radio sUpervisor

2) qRef Group Net sufX Pyro 2) qRef Group Net sufX Pyro

Tmpd Set C/s Find Memo Tmpd Set C/s Find Memo

3) select: 3) select:

Choose Send Receive Choose Send Receive

4) Scroll (↓/↑) and press 4) receive from:

ENTR to select Set [↓] Ancd Pc Broadcast Stu

5) Set: (name/nr) 5) Connect ANCD to ANCD

Edn: (name/tp) [ENTER] [↓]

6) Do you want to transfer 6) Press [RCV] to

QREF? (Y/N) receive**

7) send to: 7) Processing Please wait

ANCD Pc Broadcast Stu (shows number sent)

8) Connect ANCD TO ANCD 8) Receive operation was

 [↓] successful [↓]

9) Press [SEND] to send

(WAIT)**

10) Processing Please wait

(shows % of bytes sent)

11) Sending of SOI data is

completed [↓]

*You must select YES.

**DO NOT press SEND until

ready to press RCV.

Then press [RCV] within 20

seconds.

22
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 2(Alt): Transfer Full SOl Information, ANCD to ANCD*

SOURCE ANCD 12) Press [SEND] to send (WAIT)***

1) select 13) Processing Please wait

Soi Radio sUpervisor (shows % of bytes sent)

2) qRef Group Net sufX Pyro 14) Sending of SOI data is

Tmpd Set C/s Find Memo completed

3) select

Choose Send Receive

4) Scroll (t/l) and press 1) select:

ENTR to select Set [↓] Soi Radio sUpervisor

5) Set (name/nr) 2) qRef Group Net sufX Pyro

Edn (name/tp) [ENTR] Tmpd Set C/s Find Memo

6**) Do you want to transfer 3) select:

QREF?*** (Y/N) Choose Send Receive

7**) Want to specify 4) receive from

groups to send?*** (Y/N) Ancd Pc Broadcast Stu

8**) Want to specify a 5) Connect ANCD to ANCD

time pd to send? (Y/N) [↓]

9**) Want to specify a 6) Press [RCV] to

Smoke/Pyro data? (Y/N) receive****

10) send to 7) Processing Please wait

Ancd Pc Broadcast Stu (shows no of bytes sent)

11) Connect ANCD to 8) Receive operation was

ANCD [↓] successful [↓]

TARGET ANCD

23
POCKET GUIDE TM 11-5820-890-10-6

*Special Task 2 enables the Opr to download

quick reference (QREF) file containing up to 40

data items. The QREF gives the Opr easy and

quick access to selected items of SOI information.

Special Task 2 (Alt) enables those Oprs who need

more SOI information than is contained in the

QREF to download the complete SOI information

file in addition to, or in lieu of, the QREF.

**Screen appears only when related data is stored

in the ANCD.

***You must enter NO to transfer full SOI.

 DO NOT press [SEND] until ready to press

[RCV]. Then press [RCV] within 20 seconds of

pressing [SEND].

24
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 3: Perform Cold Start Net Opening

SUBTASK ACTION RESULTS

a. Prepare radio to (1) Load MAN (SC) freq (See Primary Operator

receive an ERF into RT Task 1)

(2) Load RT with (See Primary Operator

COMSEC/FH data Task 2)

(3) Set: ** *

FCTN to LD

COMSEC to CT*

CHAN to MAN Display shows

MODE to FH [COLD] (ready)

b. Receive and (1) Standby until N/A

store ERF NCS sends ERF

(2) Note Signal Display shows

Display activate [HF XXX]

(3) Press: Display shows

STO [STO _ ]

(4) Press: Display shows

X (1-6) [STO X ], blinks

c. Check (1) Set: N/A

communications CHAN to X

FCTN to SQ ON

(2) Call or respond Cold Start net

to NCS** opening is complete

*Net may open in PT if COMSEC is not a consideration.

**If contact with NCS fails, standby on MAN channel for NCS call.

***RT settings for RT-1523E are set via MENU.

25
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 4: Receive Net Update ERF from NCS

SUBTASK ACTION RESULTS

a. Prepare to (1) Stay on net N/A

receive net update operational channel

(2) Set N/A

FCTN to LD

b. Receive and (1) Standby for NCS N/A

store net update to send ERF

(2) Note Signal Display shows

Display activation [HF XXX]

(3) Press: Display shows

STO [STO _ ]

(4) Enter: Display shows

X (1-6)* [STO X ], blinks

c. Check (1) Set: N/A

communications CHAN to X

FCTN to SQ ON

(2) Call or respond to Net update ERF

NCS** is complete

*NCS will direct the channel for storage of ERF.

When update becomes effective, this channel

becomes new net operational channel.

**It is assumed that the Opr had the same

COMSEC key loaded in channels 1 thru 5/6.

26
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 5: Perform CUE & ERF Late Net Entry

SUBTASK ACTION RESULTS

Use CUE and ERF (1) Load: (See Primary

Method of LNE* CUE freq (and Operator Task 1)

MAN if not

loaded)

(2) Set (RT must be in PT

COMSEC to PT to send CUE)

(3) Press: (Press PTT, but

(4-5 sec) do not talk)

(4) Set: (at once) (NCS/Alt NCS will

COMSEC to CT answer in CT)

(5) Wait: N/A

For answer

(6) Repeat: Every (CUE goes through

15 seconds until only if net is quiet)

NCS answers

(7) Request: NCS (Go to MAN when

send you an ERF NCS directs)

(8) Receive & store: (See Special

ERF when sent Operator Task 4)

(9) Re-enter: net CUE & ERF LNE is

complete

*An operator having a loaded ANCD and access

to GPS time may elect to re-enter the net by use

of the Hot Start procedure.

27
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 6: Conduct Retransmission (RXMT) Operations

SUBTASK ACTION RESULTS

a. Prepare for (1) Obtain: SC/FH N/A

RXMT mission* data for RXMT

(2) Load. RXMT Ready to operate at

radios RXMT site

b. Establish comm (3) Move To RXMT N/A

from RXMT site site

(1) Call. NCS on F1 Radio-A has comm

using Radio-C to Radio-C on F1

(2) Call. Radio-B (RXMT crew may

using Radio-D have to relocate

(3) Send. ERF to Syncs Radio-B with

Radio-B if required Radio-D

c. Initiate Radio-A (1) Install. RXMT Required for RXMT

to Radio-B comm cable Radio-C to -D operation

(2) Set Radio-C to Radio-A and -D

FH and -D to FH-M serve NCS role

(3) Request N/A (Perform Step 4

Radio-A call -B via at once)

RXMT

(4) Set: Radio-C&D RXMT operation is

FCTN to RXMT ongoing*

*See RXMT Graphic below for identification of RTs and net IDs and frequency.

**Mixed mode RXMT (FH-SC/SC-FH) is slower than FH mode RXMT.

28
POCKET GUIDE TM 11-5820-890-10-6

RETRANSMISSION GRAPHIC

NOTES: 1) An RXMT station operating in EDM mode will pass both EDM and SDM

data traffic, as well as voice messages.

2) For RXMT of RS-232 data, both RXMT radios must be set to the data

rate used for RS-232 data transfer. Transfer of data by RS-232 mode

through an RXMT station requires a longer time than FH only RXMT or

point-to-point RS-232 traffic.

3) Mixed mode RXMT (SC to FH, FH to SC) of data traffic can be passed in

SDM mode only not in EDM mode.

29
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 7: Send an ERF as Part of RXMT Operation

SUBTASK ACTION RESULTS

a. Obtain data to be Load: data into Prepares Radio-D

sent by ERF Radio-D to send an ERF

b. Contact receiving Alert: Radio-B that N/A

station ERF is to be sent

c. Send ERF (1) Set: Radio-D to Required for

LD and FH-M sending an ERF

(2) Press: LOAD Display shows

[Hid_ ]

(3) Enter: Chan Display shows

where data stored [ HD xxx ]

(4) Press: ERF Display shows

[SEND]

(5) Set: FCTN to SQ Display is cleared

ON

d. Check (1) Wait: for Radio-B (20-30 sec should

communications to store ERF be adequate)

(2) Call: Radio-B to (Sending of ERF is

confirm ERF complete)

30
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 8: Change Net ID

SUBTASK ACTION RESULTS

a. Set proper (1) Set:*

RT controls FCTN to LD

CHAN to 1-6

(chan in which

data is stored)

b. Enter new Net (2) Press:

ID in RT FREQ Display shows

[ F XXX ]

CLR Display shows

[ F _ _ _ ]

Display shows:

ID numbers (3) [ F XXX ]

Display blinks,

STO net ID is stored

c. Resume normal (3) Set:

communications FCTN to SQ ON

CHAN to 1-6 New Net ID is now

(as desired) available for use

*The SIP radio allows a change of all three digits of a net ID with the MODE switch set to

FH or FH-M.

31
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 9: Use SIP RT as an RCU

STEP ACTION RESULTS

1 Load RT & RCU(RT) with proper

data

Prepares SIP RTs for remote

operations*

2 Install wire link from RCU(RT) to

Rem radio

(See TM 11-5820-890-10-8 for setup

instructions)

3 Set REM RT FCTN switch to

REM position

Enables RCU(RT) to control Rem

radio

4 Set RCU(RT) FCTN switch to SQ

ON

(LD, SQ OFF, and RXMT may also be

used)

5 Set RCU(RT) DATA to any option N/A

6 Press [RCU] key on RCU(RT);

select “RCU”

'RT," "RCU," EXT,” and “LDE" show in

RT display

7 Wait 7 sec; then note RCU(RT)

display blink

SIP RT is now ready to perform as an

RCU(RT)

8 Set RCU(RT) FCTN to REM

position***

Enables RCU(RT) Opr to call remote

radio by wire

9 Press RCU(RT) CALL key & PTT

at same time; hold for 4 to 7

seconds

Produces ring tone and CALL

message at Rem RT; oprs can talk on

orderwire

10 Set RCU(RT) FCTN to SQ ON Remoted radio is now controlled by

RCU(RT)

*For use of a SIP RT as either a manpack RCU or a manpack remoted radio, Battery Box

CY-8523A/B is required. ASIP requires a two wire adapter.

**RCU, C-11561, maybe used for remote control of a SIP radio for voice and SDM data

only, not for EDM data.

***RCU(RT) COMSEC must be set to PT to talk over the orderwire.

32
POCKET GUIDE TM 11-5820-890-10-6

SPECIAL TASK 10: Use SIP RT to Send Data Via RS-232 Mode

STEP ACTION RESULTS

1 Load PC with commercial comm

S/W*

Use any SW program offering

“Xmodem”

2 Connect PC to SIP RT

AUD/DATA port

RS-232 method does not require SW

in SIP VAA

3 Alert net data as to be sent via

RS-232 mode

If not fixed, coordinate data rate is to

be used**

4 Select data rate to be used for

RS-232 data***

Sending and receiving RTs must use

same data rate

5 Prepare data message or load

PC with data

N/A

6 Check to ensure net is clear of

traffic

Need clear net to ensure data goes

through****

7 Follow comm SW procedures to

send/receive RS-232 data

Control is from computer, SIP radio

serves as data communications carrier

*Both sending and receiving stations must use the same or compatible communications

programs.

**Depending upon the distance between sending and receiving stations, anyone of four

enhanced data rates maybe used for RS-232 traffic: 1200N, 2400N, 4800N, and 9600N.

***To select data rate, select RS-232 at SIP RT press ENTER on PC, and note data rate

displayed on PC screen.

 If voice mode has priority of use on your net, it may be necessary to wait for a quiet

period to send data messages. (Pressing PTT will not interrupt data flow except to your

radio.)

33
POCKET GUIDE TM 11-5820-890-10-6

SECTION V. PLGR TASKS

PLGR TASK 1: "Obtain Date and GPS Zulu Time from PLGR"

SUBTASK ACTION RESULTS

a. Place PLGR (1) Press PLGR Power is applied to the

into operation [ON] key PLGR

(2) Observe PLGR No action required of

perform self-test operator

b. Select proper (1) At end of FIX**  FOM 5

screen and self-test, note this 18T MGRS-New

TFOM screen * >>> WK 82223e 63528n

EL-00027m ↑/↓ P

(2) Press down 2124:43Z TFOM 4***

arrow on PLGR, 25-12-95 SUN

and note this Speed too slow

screen >>> GS < 1mph ↑/↓ P

c. Read date and (1) Read date as N/A

time from 25-12-95****

PLGR screen (2) Read time as PLGR Task 1, Obtaining

2124,43 sec. Zulu Date & Time, completed

*In this section, PLGR screens are shown in double lined boxes.

**A battery powered PLGR will automatically go to standby as soon as satellites have

been acquired.

***Time Figure of Merit (TFOM) of 8 or less indicates that PLGR is tracking at least one

satellite and GPS time is accurate.

 When the date read from the PLGR is entered into the ANCD, it is automatically

converted to the two-digit Julian Date needed for SINCGARS sync time.

34
POCKET GUIDE TM 11-5820-890-10-6

PLGR TASK 2: "Manually Load PLGR Date and Zulu Time Into ANCD"

SUBTASK ACTION RESULTS

a. Determine GPS (1) Perform PLGR N/A

date and Zulu time Task 1 as shown

above

(2) Read date and 2124 32Z TFOM 4

time from PLGR 25-12-95 MON

(with TFOM of 8 or Speed too slow

less) GS < 1mph ↑/↓ P

b. Prepare ANCD (1) Turn ANCD select

for ON Sol Radio sUpervisor

(2) Enter Are you authorized to use

SUPERVISOR this feature? (Y/N)

(3) Respond YES Warning - This could

cause data loss [↓]

(4) Press down Are you sure you want to

arrow [↓] continue? (Y/N)

(5) Respond YES Appl Date Time Setup

Util Bit (MAIN)

c. Load new date (1) Enter DATE Date is Mon 12-25-1995

and time New mm-dd-yy

(2) Enter new date Date is Mon 12-25-1995

as mm-dd-yy Newmm-dd-yy:12-26-95

(3) Press ENTR Appl Date Time Setup

Util Bit (MAIN)

35
POCKET GUIDE TM 11-5820-890-10-6

SUBTASK ACTION RESULTS

(4) Enter TIME Time is 14:53 27

New hh:mm:ss:

(5) Enter new time Time is 14:53 27

as hh:mm:ss New hh:mm:ss:21:25:00

(6) When PLGR Appl Date Time Setup

reads 25:00,ENTR Util Bit (MAIN)

(7) Enter APPL SOI RADIO RDS

(8) Enter RDS Select:** 

Soi Radio sUpervisor

*Enter one minute beyond PLGR time and wait

until PLGR seconds reach 00 to press ENTR on

ANCD. Because the ANCD requires time to load,

you may find that pressing ENTR on the ANCD

when PLGR time reads :59 gives you a more

accurate entry.

**To check the accuracy of your ANCD time entry,

enter RADIO, then TIME. You can then read

ANCD time in running format and compare it with

running time in the PLGR. If the two times are

more than one second different, reload PLGR time

Into your ANCD.

36
POCKET GUIDE TM 11-5820-890-10-6

PLGR TASK 3: Electronically Load PLGR Date and Time into RT**

SUBTASK ACTION RESULTS

a. Prepare PLGR (1) Turn PLGR ON N/A

for task

(2) Observe PLGR N/A

perform self-test

(3) Note this PLGR FIX** FOM 5

screen > > > 18T MGRS-New

WK 82223e 63528n

EL-00027m ↑/↓P

(4) Press PLGR DATA-XFR SV-SEL

MENU key twice: DOP-CALC ALERTS

note this screen SINCGARS KOI-18

> > > <more>P

(5) Press PLGR DATA-XFR SV-SEL

right arrow 4 times DOP-CALC ALERTS

to highlight SINCGARS KOI-18

SINCGARS <more>P

(6) Press PLGR SINCGARS

down arrow to Start time fill

select SINCGARS

ACTIVATE QUIT

(7) Press left arrow SINCGARS

to highlight Start time fill

ACTIVATE

(Do NOT ACTIVATE QUIT

press [↓] yet)

37
POCKET GUIDE TM 11-5820-890-10-6

SUBTASK ACTION RESULTS

b. Prepare RT for (1) Connect PLGR N/A

transfer to RT AUD/FILL

(2) Set RT FCTN to N/A

LD

c. Perform (1) Press PLGR SINCGARS

date/time down arrow to Press LOAD key on radio

transfer from select ACTIVATE

PLGR to RT QUIT

(2) Press LOAD on SINCGARS time fill

SIP RT successful

QUIT

(3) Press PLGR Date/time transfer is

down arrow to completed

select QUIT

38
POCKET GUIDE TM 11-5820-890-10-6

PLGR TASK 4: "Load PLGR Key from ANCD Into PLGR"

SUBTASK ACTION RESULTS

a. Prepare (1) Turn PLGR ON N/A

PLGR

(2) Observe PLGR N/A

self-test

(3) Note when FIX FOM 5

this screen 18T MGRS-New

appears > > > WK 82223e 63528n

EL-00027m ↑/↓ P

(4) Connect W4 N/A

to PLGR, but

NOT to ANCD

yet

b. Prepare (1) Turn ANCD Select:

ANCD ON Soi Radio sUpervisor

(2) Enter RADIO Send Receive Database

sEtup Comsec Time

(3) Enter COMSEC vG Ld Rv

Ak Mk vU

(4) Enter LD Select:

Tek Kek

(5) Enter TEK, Select key qUit

press PgDN; ENTR (name/number)

(6) Press PgUP/DN Select key qUit

to view, then ENTR (PLGR key name XMT

Connect ANCD to RT

39
POCKET GUIDE TM 11-5820-890-10-6

SUBTASK ACTION RESULTS

(7) Enter QUIT (WAIT)* [↓]

c. Load key (1) Press [↓], Do Press [LOAD] on RT**

not connect to RT*

(2) Now connect Key loaded

W4 to ANCD

*Do not connect W4 to ANCD until directed to do

so by the ACTION column. Sequence of task

requires that you connect W4 to PLGR, select key

to be transferred, and then connect the W4 to the

ANCD. When you connect the W4 to the ANCD,

the PLGR key is immediately transferred.

**Ignore this reference to the RT, only the ANCD

and PLGR are involved in this task.

40
POCKET GUIDE TM 11-5820-890-10-6

SECTION VI. HRCRD OPERATIONS

GENERAL: The HRCRD is used with the SINCGARS manpack radio,

AN/PRC-119A/D/F, and dismount kits of vehicular radios

AN/VRC-88A/D/F and -91A/D/F.

RADIO CONTROL Using the HRCRD, a manpack radio operator can control the

Channel, RF Power, Mode, and COMSEC functions of the

radio, without requiring access to the RT RT FCTN switch must

be set to REM for HRCRD to be functional.

VOLUME The level of audio volume at the HRCRD can be adjusted by

use of the thumb wheel on the side of the HRCRD.

BACK LIGHT The HRCRD back light can be turned on with one press of the

round light button. A second press of the light button turns the

back light off.

CABLING The cable of the HRCRD forms a “Y," with one end connected

to the RT AUD/DATA or AUD/FILL port. The other end is

connected to the 6-pin connector on Battery Box CY-8523C or

the AUX connector of the RT-1523E. This battery box is

required for use of the HRCRD in normal manpack radio

configuration.

RT KEYPAD Access to the RT Front Panel is required whenever it is

necessary to change the FCTN switch, to adjust audio volume

at the RT, and to change the light level in the RT display

41
POCKET GUIDE TM 11-5820-890-10-6

VEHICULAR USE Although the HRCRD is intended for use with manpack radios,

it can be employed with vehicular configurations that do not

include a control-monitor. To do so, connect one end of the “Y”

cable to the RT (A position) AUD/DATA or AUD/FILL port and

the other end to J9 connector (C-M) at the rear of the VAA.

HRCRD

42
POCKET GUIDE TM 11-5820-890-10-6

SECTION VII. PMCS FOR SINCGARS RADIOS

ITEM/WHEN CHECK/SERVICE NMC* IF:

1. (B,D,A)**

Controls: a. Cracked/broken?

(Front of RT

and on VAA) b. Loose?

c. Frozen? Any RT or VAA control is

missing or does not

d. Missing? function properly***

2. (B,D,A)

Cables a. Missing?

(W2, RF.

W4, and b. Installed

PA Pwr) properly?

c. Connectors

tight?

Any cable is missing or

d. Obvious damaged and cannot be

damage? used

3. (B,D,A)

Antennas : a. Installed

(Manpack properly?

short and

long; b. Grounded? b. Antenna is not

vehicular grounded

regular and c. Broken parts? c. Part broken and cannot

SLPA) be used

d. Missing parts? d. Part is missing

e. Tips and

tiedowns present?

43
POCKET GUIDE TM 11-5820-890-10-6

ITEM/WHEN CHECK/SERVICE NMC* IF:

4. (B)

Power.

Manpack a. Main battery a. Missing, and cannot be

present? replaced

b. Vehicle power b. No vehicle power and

Vehicular available? cannot be corrected

c. Move COMSEC c. RT display does not

Manpack or from Z to PT, light

vehicular adjust DIM, move

FCTN from OFF

to Z-FH, and

check that RT

display lights?

5. (B)

Self-Test: a. With FCTN in a. Display does not show

Z-FH display [GOOD]

shows [GOOD]?

b. Set COMSEC to b. COMSEC alarm will not

CT, check to see clear

that alarm will

clear?

c. Set FCTN to TST, c. Self-test ends with

at end of self-test display other than

display shows [GOOD]

[GOOD]?

44
POCKET GUIDE TM 11-5820-890-10-6

ITEM/WHEN CHECK/SERVICE NMC* IF:

6. (B)

Keypad: With RT set to CT, SC,

LD, and CHAN as

shown below.

a. Press FREQ, a. Any test frequency

CLR, and enter (0-9) cannot be

frequency: entered into the RT

CUE...................... 31000

MAN..................... 32000

CHAN 1................ 43000

CHAN 2................ 54000

CHAN 3................ 65000

CHAN 4................ 76000

CHAN 5................ 87000

CHAN 6................ 87975

b. Press STO for b. Any test frequency

each frequency cannot be stored in RT

entered

7. (B)

Data

Loading a. Load SC a. SC freq will not load

(SC freq, frequency

COMSEC

key, FH b. Load COMSEC key b. COMSEC key will not load

data, sync

time) c. Load FH data c. FH data will not load

d. Load sync time d. Sync time will not load

45
POCKET GUIDE TM 11-5820-890-10-6

ITEM/WHEN CHECK/SERVICE NMC* IF:

8. (B,D,A)

Comm a. Check sidetone a. Sidetone not heard

Check:

(Voice/data b. Check voice b. No voices comm in

in SC/FH comm in SC-PT SC-PT or FH-CT

modes, PT/ and FH-CT

CT and (check SQ OFF in

RXMT, as SC)

required by

mission) c. If data comm to be c. No data comm using

used, check using mission-related data

mission-related device

data device

d. If RXMT to be d. No RXMT capability in

used, check in mission-related modes

mission-related

modes

*Non Mission Capable and reportable under The

Army Maintenance System (TAMMS).

**Before, During, and After Operations checks and

services.

***”Does not function properly" means item cannot

be used in operating the radio.

46
POCKET GUIDE TM 11-5820-890-10-6

HANDHELD REMOTE CONTROL RADIO DEVICE (HRCRD)

PREVENTATIVE MAINTENANCE CHECKS AND SERVICES

NOT FULLY

CHECK/ OPERATOR PROCEDURE MISSION

SERVICE CAPABLE IF:*

CONTROLS: To control radio functions,

(B,D,A) press [SEL] until the required

function Is highlighted (CHAN;

COMSEC; RF PWR, MODE).

Then press the [DOWN

ARROW] until specific item

you need appears in the

display.

LIGHT To turn backlight on, press the

(B,D,A) lightbutton. To turn the lightoff,

press the light button a second

time.

VOLUME To change the level of audio

(B,D,A) volume, rotate the volume

control knob on the side of the

HRCRD to reach desired

level.

CABLE a. Check for proper

(B,D,A) installation.

b. Check for tightness of

connectors

c. Check for obvious

damage to cable.

47
POCKET GUIDE TM 11-5820-890-10-6

NOT FULLY

CHECK/ OPERATOR PROCEDURE MISSION

SERVICE CAPABLE IF:*

CONNECTORS: a. Check for obvious

(B,D,A) damage to connectors.

b. Check for missing

O-rings.

c. Check for bent/broken

pins.

COMM CHECK: a. Check for sidetone. a. Cannot

(B,D,A) b. Check voice comm. transmit or

receive.

Before (B), During (D), After (A)

NOTE: HRCRD IS MISSION CAPABLE AS LONG AS TRANSMIT

AND RECEIVE FUNCTIONS ARE OPERABLE. If controls are not

functioning, place radio function switch to normal operating

position (SQ ON)/LD) and change functions via keypad/switches.

PGPO: 2000- 466-640

48
By Order of the Secretary of the Army:

DENNIS J. REIMER

General, United States Army

Official: Chief of Staff

JOEL B. HUDSON

Administrative Assistant to the

Secretary of the Army

05817

DISTRIBUTION

To be distributed in accordance with the initial distribution number (IDN) 369694

requirements for TM 11-5820-890-10-6.
PIN: 072738 000 1

N