Fmf 108: Field Communication Fundamentals

Front 1

Two modes of the (SINCGARS) Radio System

Back 1

SINGLE CHANNEL (SC)
- The Reciever Transmitter(RT) communicates on one frequency

FREQUENCY HOPPING (FH)
- Has ability to secure transmisisons through using the Transmission Security Key (TSK) and frequency hopping reduces or eliminates the threat of jamming and direction-finding equipment.

(1) cold start TSK
(2) SC frequency loaded into MAN channel
(3) hopset
(4) lockout set(s)
(5) FH sync time.

Front 2

Maximum transmission ranges for the SINCGARS

Back 2

Low - 200-400m

Medium - 400m-5k

High - 5-10k

Power Amplifier - 10k-40k Vehicle Only

Front 3

MANPACK & Vehicle Radio Component

Back 3

Battery - Be cautious of LITHIUM battery (dangerous) do not heat, puncture, or mutilate. Do not short circuit, Dont store battery in equipment if it is not in use.

Antenna - Hant Tighten whip into antenna base, Do not over tighten, position antenna as needed by bending gooseneck (Do not use antenna as a handle.)

Handset - Secure handset to AUD/DATA connecton. righty tighty lefty loosy

Field Pack - Folt top flap of field pack over RT and secure flap to field back.


(Vehicle Radios are Installed and removed by MAINTNANCE PERSONNEL.)

Front 4

4 Methods to Tie down Antenna

Back 4

STAY DOWN : CLAMP/CLIP

SNAP FREE : CLAMP/ CLIP

Front 5

Proceedures for loading SC frequencies

Back 5

- Obtain authorized frequency
- Set FCTN to LD.
- Set MODE to SC.
- Set CHAN to MAN, CUE, or desired channel (1-6) where frequency is to be stored.
- Press FREQ (display will show "00000")
- Press CLR ( - - - - - )
- Enter numbers of new frequency
- Press STO
- Repeat eight steps above for additional frequencies
- Set FCTN to SQ ON

Front 6

Purpose of battereis

Back 6

BA 5372 - HOLD UP BATTERY (non-rechargable)

BA 5590 - LithiumPRIMARYpower battery(non-recharable

BA 590 - Manpack secondary power battery (Rechargable)

Front 7

How to perform an Operators Checks

(FITCAL)

Back 7

- Feel
- Inspect
- Tighten
- Clean
- Adjust
- Lubricate