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 TM 11-6625-2975-40
2-24. RF OUTPUT LEVEL ALINEMENT. (CONT)
PROCEDURE (CONT)
EL9LY025
Loosen two screws (1) that secure test point cover (2) and slide cover to expose test points.
4.
Adjust A3A2R7 (3) until power meter indicates -6.0 0.1 dBmW.
5.
Enter frequency 108.00 MHz and RF LEVEL of -6dBmW into test set.
6.
Press to extinguish 30 Hz VAR and 9960 FM TONE keys.
7.
Adjust A3A2R8 until power meter indicates -6.0 0.1 dBmW.
8.
Enter frequency 332.00 MHz into test set and set RF LEVEL to -6dBmW.
9.
10.
Push to extinguish 90 Hz and 150 Hz TONE keys.
11.
Adjust A3A2R6 (1) until power meter indicates -6.0 +0.1 dBmW.
12.
Press RF ON/OFF switch to turn off rf.
13.
Disconnect thermistor from test set.
VOR RADIAL ADJUSTMENT.
TEST EQUIPMENT REQUIRED: Differential Voltmeter, Fluke 887AB/AN
Zifor IlI
Phasemeter, Dranetz 305C/305-PA-3001
EQUIPMENT SETUP: Connect test set to 115 vac power source.
Connect equipment as shown in the following diagram.
EL9LY064
Set zifor Ill to zero mode.
Turn equipment on. Allow at least 30 minutes for warmup.
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