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Model 8902A
Adjustments
Adjustment 10-FM
Sensitivity
Reference
Service Sheet
1 1.
Description
The FM sensitivity is adjusted for a calibration factor of 100% while the Measuring Receiver measures
the output of its FM calibrator.
Procedure
1.
Perform Adjirstmtwt 9-FM Calibrator.
2. Connect the CALIBRATION AM/FM OUTPUT to the INPUT. (The CALIBRATION AM/
FM OUTPUT can be connected either to a sensor module o r directly to the Measuring Re-
ceiver's INPUT.)
NOTE
For besr accirracy. allow the Measiiring Rewiver to warm
irp
for at least onc-
half hoirr.
3. Press FM then CALIBRATE. Allow at least two readings (approximately 40 seconds) to pass,
then adjust A4R50 (FM SENS) for a display of
99.95
to 100.05%.
I
5-17
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