TB 9-6625-003-35
(11) Adjust GAIN control one-quarter turn from fully counterclockwise position.
(12) Adjust BANDWIDTH control fully counterclockwise and adjust test oscillator
frequency for peak indication on TI meter, while maintaining an on-scale indication on TI
meter.
(13) Repeat (7) and (8) above.
(14) Repeat (9) above and record frequency counter indication. Difference between
two recorded frequencies will be 15 Hz or less.
(15) Deleted.
(16) Deleted.
(17) Deleted.
(18) Deleted.
(19) Deleted.
(20) Deleted.
b. Adjustments No adjustments can be made.
29. Range Accuracy (Exempt AN/GSM-256)
a. Performance Check
(1) Position TI controls as listed in (a) through (c) below:
(a) GAIN control fully clockwise.
(b) VERNIER control fully clockwise
(c) INPUT SELECTOR switch to XTAL 200Ω.
(2) Connect equipment as shown in figure 3.
(3) Set ratio transformer (A6) controls to .100000.
(4) Adjust test oscillator (A9) frequency for peak indication on TI meter and adjust
amplitude for a 0-dB indication on TI meter.
(5) Set ratio transformer controls to .010000 and set RANGE switch to 10.
(6) Adjust ratio transformer controls for a 0-dB indication on TI meter.
Ratio
transformer will indicate between .009772 and .010233.
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