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|  TM 11-5820-401-34-3/0967-LP-432-3060
5-4. NEW SQUELCH TEST .(CONT)
STANDARD. R-442/VRC CALL lamp should light.
9. lf CALL lamp does not light, see troubleshooting chart 5-3.
NEW SQUELCH Test at 41.00 MHz
10. Change R-442/VRC MC-TUNE-KC switch to 41.00 MHz and BAND to
.
11. Turn AN/URM-103 BAND SWITCH to
and RF TUNING control for 41.00-MHz meter
indication.
12. Adjust AN/URM-103 RF TUNING control for 41.00-MHz display on AN/USM-207. To produce
display, see note under step 1 and readjust RF TUNING control until AN/USM-207 indicates
41.00 MHz.
13. Repeat steps 2 through 9.
NEW SQUELCH Test at 52.00 MHz
14. Change R-442/VRC MC-TUNE-KC switch to 52.00 MHz.
15. Turn AN/URM-103 RF TUNING control for 52.00-MHz meter indication.
16. Adjust AN/URM-103 RF TUNING control for 52.00. MHz display on AN/USM-207. To produce
display, see note under step 1 and readjust RF TUNING control until AN/USM-207 indicates
52.00 MHz.
17. Repeat steps 2 through 9.
NEW SQUELCH Test at 53.00 MHz
18. Change R-442/VRC MC-TUNE-KC switch to 53.00 MHz and BAND to
.
19. Turn AN/URM-103 RF TUNING control for 53.00-MHz meter indication.
20. Adjust AN/URM-103 RF TUNING control for 53.00-MHz display on AN/USM-207. To produce
display, see note under step 1 and readjust RF TUNING control until AN/USM-207 indicates
53.00 MHz.
21. Repeat steps 2 through 9.
NEW SQUELCH Test at 65.00 MHz
22. Change R-442/VRC MC-TUNE-KC switch to 65,00 MHz.
23. Turn AN/URM-103 BAND SWITCH to
and RF TUNING control for 65.00-MHz meter
indication.
24. Adjust AN/URM-103 RF TUNING control for 65.00-MHz display on AN/USM-207. To produce
display, see note under step 1 and readjust RF TUNING control until AN/USM-207 indicates
65.00 MHz.
25. Repeat steps 2 through 9.
NEW SQUELCH Test at 75.00 MHz
26. Change R-442NRC MC-TUNE-KC switch to 75.00 MHz.
27. Turn AN/URM-103 RF TUNING control for 75.00-MHz meter indication.
28. Adjust AN/URM-103 RF TUNING control for 75.00-MHz display on AN/USM-207. To produce
display, see note under step 1 and readjust RF TUNING control until AN/USM-207 indicates
75.00 MHz.
29. Repeat steps 2 through 9.
5-11
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