Audio Response Test (X-Mode) at Other Modulating Frequencies

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

4-9.

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

3. Set AN/GRM-114A MODULATION FREQ Hz thumbwheels (1) to modulating frequencies listed

below. Note MM-100E meter and AN/GRM-114A DEVIATION meter(2) indications.

03000.0

05000.0

10000.0

00500.0

STANDARD. MM-100E meter should indicate between + 2 db and -3 db of reading noted in step 1,

and AN/GRM-114A DEVIATION meter should indicate 8 kHz at each frequency.

If MM-100E meter does not indicate between + 2 db and -3 db of reading noted in step 1, or if

AN/GRM-114A DEVIATION meter does not indicate 8 kHz at each frequency, see trouble-

NOTE

Before performing any other test in this section, see R-442 X-MODE Setup Procedure

(page 4-22) and do the following:

Set X-Mode-Normal Switch S4001 to NORMAL.

Return filter FL4002 to its original position.

4-25