TB 9-6625-340-35
(a) POWER RANGE switch to 1.0 MW, 0 DBM.
(b) POWER control to 0 on 0 to 1.0 scale.
(c) BIAS-READ switch to BIAS.
(d) BIAS COARSE and FINE controls for a null indication on TI NULL
INDICATOR meter.
(e) BIAS-READ switch to READ.
(f) POWER control to 1.0 on 0 to 1.0 scale.
(20) Repeat (16) and (17) above. Power meter will indicate between .095 and .105
mW.
(21) Set microwave measurement system MULTIBAND CONTROL UNIT RF
ON/OFF switch to OFF.
(22) Position controls as listed in (a) through (f) below:
(a) POWER RANGE switch to .30 MW, -5 DBM.
(b) POWER control to 0 on 0 to 3.0 scale.
(c) BIAS/READ switch to BIAS.
(d) BIAS COARSE and FINE controls for a null indication on TI NULL
INDICATOR meter.
(e) BIAS/READ switch to READ.
POWER control to 3.0 on 0 to 3.0 scale.
(f)
(23) Repeat (20) above. Power meter will indicate between 0.0285 and 0.0315 mW.
b. Adjustments
(1) Adjust variable attenuator for a 1.0-mW indication on power meter.
(2) Adjust R74 (fig. 1) for a null indication on TI NULL INDICATOR meter (R).
(3) Adjust variable attenuator for a 0.1-mW indication on power meter.
(4) Adjust R69 (fig. 1) for a null indication on TI NULL INDICATOR meter (R).
(5) Repeat a(7) through (12) above.
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