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Page Title:
CHART 2-19. Transmitter Frequency Stability Troubleshooting (Sheet 1 of 5) |
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|  TM 11-5820-670-30
2-26. TROUBLESHOOTING CHARTS. (CONT)
CHART 2-19
Transmitter Frequency Stability Troubleshooting
(Sheet 1 of 5)
NOTES
1. Set control unit to frequencies used in Fre-
quency Stability Performance Test (para 2-16).
2. Does the total frequency error at P3301 and
CONNECT EQUIPMENT AS
P3701 exceed 3.5 KHz?
SHOWN IN TRANSMITTER
3. Is measured frequency more than 3.5 KHz
FREQUENCY STABILITY
from designated frequency?
PERFORMANCE TEST (PARA
SWING OPEN A3000 ASSEM-
BLY AND DISCONNECT
P3301 FROM J3301. SEE
ILLUSTRATION, SH 4.
CONNECT VOLTMETER AN/
URM-145 TO P701 AND
MEASURE VOLTAGE. SEE
ILLUSTRATION, SH 4.
PERFORM TRANSMITTER
FREQUENCY STABILITY
REPLACE MODULE A2000
PERFORMANCE TEST (PARA
2-103
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