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|  TM 5820-401-34-3/0967-LP-432-3060
5-3. RECEIVER SENSITIVITY TEST. (CONT)
7. Connect TS-723(*)/U AF INPUT lead B to Test Cable No. 1 terminal F; connect lead A to
terminal A. (See test setup diagram
.)
8. Turn TS-723(*)/U FUNCTION switch to SET LEVEL.
9. Adjust TS-723(*)/U AF INPUT control for zero-db indication on meter.
10. Change TS-723(*)/U FUNCTION switch to DISTORTION.
11. Adjust TS-723(*)/U FREQUENCY and BALANCE controls for minimum meter indication.
STANDARD. The new TS-723(*)/U meter indication (step 11) should be at least -10 db from the
previous indication (zero db) (step 8).
12. If TS-723(*)/U meter indication is not at least -10 db from previous indication, see trouble-
shooting chart 5-2.
Sensitivity Test at 53.00 MHz
13. Change R-442/VRC MC-TUNE-KC switch to 53.00 MHz and BAND to
.
14. Turn AN/URM-103 BAND SWITCH to
and RF TUNING control for 53.00-MHz meter
indication.
15. Reconnect TS-723(*)/U METER lead C to Test Cable No. 1 terminal F; reconnect lead D
to terminal A.
16. Adjust AN/URM-103 RF TUNING control for 53.00-MHz display on AN/USM-207. To produce
display, see note under step 2 and readjust RF TUNING control until AN/USM-207 indicates
53.00 MHz.
17. Repeat steps 3 through 12.
Sensitivity Test at 41.00 MHz
18. Change R-442/VRC MC-TUNE-KC switch to 41.00 MHz and BAND to
.
19. Turn AN/URM-103 BAND SWITCH to
and RF TUNING control for 41.00-MHz meter
indication.
20. Reconnect TS-723(*)/U METER lead C to Test Cable No. 1 terminal F; reconnect lead D
to terminal A.
21. Adjust AN/URM-103 RF TUNING control for 41.00-MHz display on AN/USM-207. To produce
display, see note under step 2 and readjust RF TUNING control until AN/USM-207 indicates
41.00 MHz.
22. Repeat steps 3 through 12,
Sensitivity Test at 64.00 MHz
23. Change R-442/VRC MC-TUNE-KC switch to 64.00 MHz and BAND to
.
24. Turn AN/URM-103 BAND SWITCH to
and RF TUNING control for 64.00-MHz meter
indication.
25. Reconnect TS-723(*)/U METER lead C to Test Cable No. 1 terminal F; reconnect lead D
to terminal A.
26. Adjust AN/URM-103 RF TUNING control for 64.00-MHz display on AN/USM-207. To produce
display, see note under step 2 and readjust RF TUNING control until AN/USM-207 indicates
64.00 MHz.
27. Repeat steps 3 through 12.
5-7
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