Audio Response Test (X-Mode) at 5 kHz

TM 11-5820-401-34-3/0967-LP-432-3060

RECEIVER AUDIO RESPONSE TEST (X-MODE). (CONT)

5-9.

STANDARD. ME-30('WJ meter should indicate between + 2 db and -3 db of reading noted in

step 9.

25. If ME-30(*)/U meter does not indicate between + 2 db and -3 db of reading noted in

step 9, see troubleshooting chart 5-9.

Audio Response Test (X-Mode) at 5 kHz

26.

Turn AN/URM-127 FREQ RANGE DIAL to 50.

27.

Disconnect rf cable from Adapter UG-514. (See test setup diagram

28.

Connect rf cable to AN/USM-207 FREQ A connector.

29.

Adjust AN/URM-127 FREQ RANGE DIAL for 5-kHz display on AN/USM-207.

30.

Disconnect rf cable from AN/USM-207 FREQ A connector.

31.

Reconnect rf cable to Adapter UG-514.

STANDARD. ME-30(*)/U meter should indicate between + 2 db and -3 db of reading noted in

step 9.

32. If ME-30(*)/U meter does not indicate between + 2 db and -3 db of reading noted in

step 9, see troubleshooting chart 5-9.

Audio Response Test (X-Mode) at 10 kHz

33.

Turn FREQ RANGE DIAL to 100.

34.

Disconnect rf cable from Adapter UG-514. (See test setup diagram

35.

Connect rf cable to AN/USM-207 FREQ A connector.

36.

Adjust AN/URM-127 FREQ RANGE DIAL for 10-kHz display on AN/USM-207.

37.

Disconnect rf cable from AN/USM-207 FREQ A connector.

38.

Reconnect rf cable to Adapter UG-514.

STANDARD. ME-30(*)/U meter should indicate between + 2 db and -3 db of reading noted in

step 9.

39. If ME-30(*)/U r@er does not indicate between + 2 db and -3 db of reading taken in

step 9, see troubleshooting chart 5-9.

NOTE

Before performing any other test in this section, see R-442/VRC X-MODE SETUP

PROCEDURE (page 5-25) and do the following:

Set X-MODE-NORMAL Switch S4001 to NORMAL.

Return Filter FL4002 to its original position.

5-29