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Page Title:
CHART 2-19. Transmitter Frequency Stability Troubleshooting (Sheet 3 of 5) |
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|  TM 11-5820-670-30
2-26. TROUBLESHOOTING CHARTS. (CONT)
CHART 2-19
Transmitter Frequency Stability Troubleshooting
(Sheet 3 of 5)
REPLACE CRYSTAL REF-
ERENCE SYSTEM ASSEMBLY
A3000 (PARA 2-43).
INJECT THE FREQUENCIES
IF DC VOLTAGES ARE NOT
LISTED IN TABLE A AT A
PEFORM TRANSMITTER
OBTAINED AS SHOWN IN
FREQUENCY STABILITY
2 5 0 MILLIVOLT LEVEL.
TABE A, REPLACE ASSEM-
PEFORMANCE TEST
M E A S U R E OUTPUT AT
BLY A3000 (PARA 2-43).
T P 3 0 0 1 . SEE ILLUSTRATION
SH 5.
TABLE A
OUTPUT
FREQUENCY
VDC
(MHz)
-2.4 TO - .4
42.050
-2.5 TO -2.0
42.250
-1.8 TO 1.2
42.350
-0.70 TO - .40
42.450
-0.15 TO + 0.15
41.500
+0.95 TO 1.45
41.600
+1.5 TO 2.5
41.700
+1.4 TO 2.4
41.900
2-105
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