 |
|||
|
|
|||
|
|
|||
| ||||||||||
|
|  TM 11-5820-401-34-3/0967-LP-432-3060
4-10. RECEIVER SELECTIVITY TEST. (CONT)
STANDARD. The difference between the two frequencies should beat least 32 kHz.
11. If difference between frequencies noted in step 9 and step 6 is less than 32 kHz, see
troubleshooting chart 4-10.
12. Set AN/GRM-114A HI LVL/V x 100/NORM switch (3) to V x 100.
13. increase AN/GRM-114A RF LEVEL control (1) to ten times indication noted in step 1.
14. Set AN/GRM-114A RF FREQUENCY MHz thumbwheeis (2) to 030 041.0 (30.014 MHz).
STANDARD. R-442/VRC CALL lamp should go off.
15. If R-442/VRC CALL lamp stays iit, see troubleshooting chart 4-10.
16. Decrease AN/GRM-114A RF FREQUENCY MHz thumbwheel setting (2) in 1-kHz steps until
R-442/VRC CALL lamp lights. Note RF FREQUENCY MHz setting (2).
17. Set AN/GRM-114A RF FREQUENCY MHz thumbwheels (2) to 029 959.0 (29.959 MHz).
STANDARD. R-442/VRC CALL lamp should go off.
18. If R-442/VRC CALL lamp stays lit, see troubleshooting chart 4-10.
19. increase AN/GRM-114A RF FREQUENCY MHz thumbwheel settings (2) in 1-kHz steps until
R-442/VRC CALL lamp iights. Note RF FREQUENCY MHz setting (2).
20. Subtract frequency noted in step 19 from frequency noted in step 16.
STANDARD. The difference between the two frequencies should be 80 kHz or less.
21. If difference between frequencies noted in step 19 and step 16 is more than 80 kHz, see
troubleshooting chart 4-10.
4-29
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals