TB 9-6625-2296-35
(10) Adjust A9 FM MOD ADJ (fig. 1) on the 90 MHz GEN MECH ASSY until level of
carrier frequency is nulled down to center horizontal graticule on TI spectrum analyzer
display.
(11) Press Freq (F1) (RF Frequency Mode) key, and press DATA SCROLL arrow
keys to set RF to 10.0000 MHz. Press DATA ENTRY ENTER key.
(12) Adjust A9 FM MOD ADJ (fig. 1) on the 90 MHz GEN MECH ASSY until level of
carrier frequency is about midway between the levels of the two final levels in (8) and (10)
above on TI spectrum analyzer display.
(13) Repeat (9) through (12) above until the center frequency level does not vary by
more than 2 dB.
(14) The measuring receiver FM display should indicate a value approximately
balanced around 12.5 kHz and within 100 Hz when RF frequency is toggled between
10.0000 and 10.0001 MHz.
(15) Press key sequence listed in (a) through (k) below:
Meter Menu
(a) MODE MTRS ..........................
Auxiliary Function Menu
(b) AUX (F6) ..................................
(c) DATA ENTRY 1 ......................
(d) FIELD SELECT arrow...........
Highlight 13. Gen Modulation
(e) DATA ENTRY ENTER..............
Select 13. Gen Modulation
FM Deviation (80 kHz)
(f) DATA ENTRY 3 ......................
(g) DATA SCROLL keys until measuring receiver indicates 80 kHz 4 kHz
Set Correction Factor
(h) DATA ENTRY ENTER..............
Escape
(i) ESC (F6) ...................................
RF Gen Display
(j)
MODE RF GEN ......................
(Backup Cal Data? y/n)
(k) DATA ENTRY SHIFT Y ........
a. Performance Check
(1) Press key sequence listed in (a) through (f) below:
Meters Menu
(a) MODE MTRS ..........................
Auxiliary
(b) AUX (F6) ..................................
Recall
(c) MEMORY RCL .......................
(d) FIELD SELECT ⇑ ..................
Highlight 10. Factory Defaults
Factory Defaults recall
(e) DATA ENTRY ENTER .............
NOTE
Assure highlighted area indicates YES before proceeding.