TM 11-5820-890-20-1
STEPS TO PERFORM
CHECKS TO MAKE
ACTIONS TO TAKE
5.11
Set RT FCTN to RXMT,
connect HS to RT RXMT
and listen at HS
5.12 Press PTT
SIG display reads 4 or more?
Rushing noise heard at HS?
YES:
Go to Step 5.12
NO: Replace RT
YES:
Go to STEP 6
NO:
Replace RT
*
If unit SOP or tactical situation prohibits transmitting, use dummy load and realize that antenna cannot be
checked.
**
If radio is used for data transmission, use 1/4 rather than 1/3 for these checks
STEP 6. RECEIVER CHECKS:
STEPS TO PERFORM
CHECKS TO MAKE
ACTIONS TO TAKE
6.1
Remove vehicular antenna
N/A
N/A
cable from test set ANT
Set test set MODE to SENS SQ
N/A
N/A
Set RT:
COMSEC to PT
N/A
N/A
CHAN to 3
N/A
N/A
6.2
Press test set Push-To-Test
Test tone heard in HS?
YES:
Go to Step 6.3
NO: Replace RT
6.3
Connect HS to RT AUD/FILL
RT-A/B
N/A
Set RT FCTN to SQ ON
RT-A/B
N/A
Press test set Push-To-Test
Test tone heard in HS?
YES:
Go to STEP 7
NO:
Replace RT
STEP 7.
POWER AMPLIFIER CHECKS:*
STEPS TO PERFORM
7.1
Connect vehicular antenna cable
to test set ANT
Connect W2/CG-3856 cable to
RT ANT and PA J2
Set test set MODE to FWD PWR
Connect test set cable from
test set RADIO to PA J1
Set RT CHAN to 1
7.2
Press PTT and test set
Push-To-Test
7.3
Set RT to PA
Press PTT and test set
Push-To-Test
7.4
Set RT CHAN to 2
Press PTT and test set
Push-To-Test
CHECKS TO MAKE
N/A
N/A
N/A
N/A
N/A
Test set reads 2-6 W FWD PWR?
N/A
Test set reads 30 W or greater
FWD PWR?
N/A
Test set reads 30 W or greater
FWD PWR?
ACTIONS TO TAKE
N/A
N/A
N/A
N/A
N/A
YES:
Go to Step 7.3
NO:
Go to TS Chart 14
YES:
Go to Step 7.4
NO:
RT-A; Go to TS Chart 15
RT-B; Go to TS Chart 16
N/A
YES:
Go to Step 7.5
NO:
RT-A; Go to TS Chart 17
RT- B; Go to TS Chart 18
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