TB 9-6625-2059-35
(7) Set FREQUENCY MHz switches to 000 001 0. If oscilloscope trace is not
between -0.9 and -1.1 kHz, perform b (3) below. If FREQ ERROR meter does not indicate
negative between 0.9 and 1.1 kHz, perform b (5) below.
(8) Set FREQUENCY MHz switches to 1255000.
(9) Connect signal generator to ANTENNA INPUT.
(11) Record frequency error indication of FREQ ERROR meter.
(12) Reduce signal generator amplitude until FREQ ERROR meter indicates a
100 Hz error from indication recorded in (11) above.
(13) If signal generator amplitude is greater than -101 dBm perform b (6) through
(11) below.
b. Adjustments
(1) Adjust A1A13R44 (fig. 5) for an oscilloscope indication of -10 kHz (R).
(2) Adjust A1A13R39 (fig. 5) until FREQ ERROR meter indicates 10 kHz (R).
(3) Adjust A1A13R44 (fig. 5) for best in-tolerance condition while repeating a (1)
through (7) above (R).
(4) Adjust A1A13R41 (fig. 5) until FREQ ERROR meter indicates 4 kHz (R).
(5) Adjust A1A13R42 (fig. 5) until FREQ ERROR meter indicates 1 kHz (R).
(6) Adjust signal generator amplitude for -107 dBm.
(7) Set RCVR WIDE-MID-NARROW switch to WIDE.
(8) Adjust A1A13R7 (fig. 5) until INPUT LEVEL lamp (front panel) just
illuminates (R).
(9) Set RCVR WIDE-MID-NARROW switch to NARROW. Adjust A1A13R8 (fig. 5)
until INPUT LEVEL lamp just illuminate (R).
(10) Set DEV-PWR switch to SIG. Adjust signal generator amplitude to -25 dBm.
Adjust A1A13R91 (fig. 5) until DEVIATION/WATTS meter indicates FS (R).
(11) Repeat (6) through (10) above as necessary.
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