TB 9-6625-003-35
9. Bolometer Bias
a. Performance Check
(1) Set SWR-DB switch to 0 (zero).
(2) Adjust resistance standard (A7) to 200 ohms and connect to TI INPUT, using
cable (B4).
(4) Set input selector switch to BOLOMETER and HIGH-LOW SWITCH (fig. 1) to
LOW. Dc voltmeter will indicate between 0.80 and 0.92 V dc.
(5) Set HIGH-LOW SWITCH to HIGH. Dc voltmeter will indicate between 1.64
and 1.86 V dc.
b. Adjustments. No adjustments can be made.
a. Performance Check
(2) Set input selector switch to CRYSTAL and GAIN control one-quarter turn from
fully counterclockwise position.
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