HP 8566B Adjustment Manual page 105

18. Gain Compression Test
30. Connect cable to power sensor and adjust output level of
synthesizer for a power meter indication of -5.00 ho.02 dB.
Reconnect cable to spectrum analyzer input.
[
31. Change
REFERENCE LEVEL
Record the MKR A amplitude:
32. Subtract the value recorded in step 9 from the value obtained
in step 31 to find the gain compression:
result should be >- 1.0 dB (less than 1 dB compression).
33. Disconnect cable from the spectrum analyzer RF INPUT. Connect
the spectrum analyzer CAL OUTPUT to RF INPUT.
34. Press c-1 @, MARKER
for a MARKER amplitude of -10.00 dBm f0.02 dB.
)
to -5 dBm.
(P ). Adjust AMPTD CAL
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