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Tactical Radio Communications

• STAY AWAKE!• TURN OFF CELL PHONES• NO TOBACCO USE• DIRECT QUESTIONS TO INSTRUCTOR• USE LATRINE ONLY DURING BREAKS• DO NOT WRITE ON THE TRAINING AIDES!

CLASSROOM RULES

CONDITION: Given an operational radio set with an SOI, fill device with appropriate fills, and fill cable, TM 11-5820-890-10-8, and an operational distant station.

STANDARD: Establish voice communications with the distant tactical radio/network, within 3 minutes.

REFERECES: Required Related SOI FM 24-18 TM 11-5820-401-10-2 FM 24-19 TM 11-5820-890-10-8

Performed Voice Communications. TASK 113-571-1022

• Pre-check correct COMSEC/SOI • Pre-plan message before transmitting• Use lowest power setting necessary• Make only authorized transmissions• Maintain alert watch for station

calls

CLASSROOM RULES

GENERAL OPERATING RULES (cont.)

• Listen before transmitting• Transmit clearly and

accurately• Use the phonetic alphabet• Maintain transmission

security

PHONETIC ALPHABET

ALFA( FAH)AL

ECHO( OH)ECK

INDIADEE AH)(IN

BRAVO( )BRAH VOH

FOXTROT( TROT)FOXS

JULIETT( LEE )JEW ETT

CHARLIE( LEE)CHAR

GOLF(GOLF)

KILO( LOH)KET

DELTA( TAH)DELL

HOTEL(HOH )TELL

LIMA( MAH)LEE

A

E

I

B

F

J

C

G

K

D

H

L

MIKE(MIKE)

QUEBEC(KEH )BECK

UNIFORM( NEE FORM)YOU

NOVEMBER(NO BER)VEM

ROMEO( ME OH)ROW

VICTOR( TAH)VIK

OSCAR( CAR)OSS

SIERRA(SEE RAH)AIR

WHISKEY( KEY)WISS

PAPA(PAH )PAH

TANGO( GO)TANG

XRAY( )ECKS RAY

M

Q

U

N

R

V

O

S

W

P

T

X

YANKEE( KEE)YANG

TREE

SEV-EN

ZULU( LOO)ZOO

FOW-ER

AIT

WUN

FI-YIV

NIN-ER

TOO

SIX

ZE-RO

Y

3

7

Z

4

8

1

5

9

2

6

0

PHONETIC ALPHABET / NUMBERS

TRANSMISSION SECURITY

DO NOT:• Violate radio silence

• Hold personal or unofficial conversations

• Transmit personal information (names, SSN, etc...)

• Transmit classified information in plain text

• Use unauthorized prowords (I.e. Repeat)

• Use profanity

UNIT CALL SIGN

A unit call sign consists of a (L-N-L):

Letter Number Letter

N 2 F

A suffix is a two digit number which represents a position in a unit.

SUFFIX

28

EXPANDER

An expander represents a driver/radio telephone operator, enlisted assistant, aide, etc…

B

FULL CALL SIGN

Unit Position Expander

N2F 28 BThere are only two times a full call sign will be used:

a) When directed by the net control station (NCS)b) When operating in an unfamiliar net.

ABBREVIATED CALL SIGN (1 OF2)

To abbreviate or shorten, a full call sign, you should eliminate the first two characters of the full call sign.

N2F 28B F28B

ABBREVIATED CALL SIGN

Use abbreviated call signs:• To shorten transmission time• While operating in a familiar net

TWO TYPES OF NETS

DIRECTED-NET You must obtain permission from NCS to transmit.

FREE-NET NCS will authorize net member stations to transmit

traffic to other stations in the net without obtaining permission from NCS.

SINGLE CALL

INDIVIDUAL CALL:

A

RESPONSE - - - F28 THIS IS X36 OVER

B

BN NCS

C H Q

X366

F 288

CALL - - -

X36 THIS IS F28 OVER

MULTIPLE CALL

F28F28

THIS IS X36 OVERTHIS IS G52 OVER

RESPONSE...

A B C HQX36 G52

CALL... X36 G52

THIS IS F28 OVER

N2F

BN NCSF28

NET CALL

CALL - - -

RESPONSE - - -

N2F- THIS IS- F28- - OVER

F28- THIS IS- G48- - OVERF28- THIS IS- G52- - OVERF28- THIS IS- R83- - OVERF28- THIS IS- X36- - OVERN2F- THIS IS- F28- - OUT

A B C HQX36 R83 G52 G48

B SN NC

F28

N2F

This requires anordered listingknown by all netmembers

MUST becommittedto memory

PROCEDURE WORDS(PROWORDS)

I have received your last transmission satisfactorily

“ROGER”(PROWORDS)

I have received your signal, understand it, and will comply

“WILCO”

(PROWORDS)

This is the end of my transmission to you and a response is necessary. Go ahead; transmit.

“OVER”(PROWORDS)

“OUT”(PROWORDS)

This is the end of my transmission and no answer is required

F28 this is G48Radio CheckOver

“RADIO CHECK”

G48 this is F28Roger - Out

I received your last transmission satisfactorySIGNAL STRENGTH

CLEAR DISTORTEDREADABLE WITH INTERFERENCEUNREADABLE INTERMITTENT

LOUD VERY WEAKGOOD FADING

READABILITY

PROWORDS

SUMMARY

Most efficient communications within a netis attained when operators habitually use proper procedures in transmitting and receiving messages

QUESTIONS