HP 8566B Adjustment Manual page 57

2-32 Performance Tests
Frequency Response Adjustments
(Includes input attenuator flatness in the 10 dB setting and mixing
mode gain variations, and assumes PRESELECTOR PEAK in current
instrument state.)
Tuned Frequency
100 Hz to 2.5 GHz non-preselected band
2 to 12.5 GHz preselected bands
12.5 to 18.6 GHz preselected band
18.6 to 20 GHz preselected band
20 to 22 GHz preselected band
Cumulative
100 Hz to 20 GHz
100 Hz to 22 GHz
Absolute Amplitude Calibration
Frequency response is checked across the full range of the spectrum
analyzer. In the non-preselected range from 100 Hz to 2.5 GHz, three
signal sources are used to make swept measurements: a function
generator (100 Hz to 100 kHz), a frequency synthesizer (100 kHz
to 60 MHz), and a synthesized sweeper (60 MHz to 2.5 GHz). In the
preselected bands from 2 GHz to 22 GHz, a synthesized sweeper is
used to check the frequency response. From 100 Hz to 60 MHz, the
source flatness permits a direct display of analyzer response. Above
60 MHz, the externally levelled source is first characterized with
a power meter. The power sensor Cal Factor % switch is used to
compensate for the frequency response of the power meter.
Flatness (20 to 30°C)
f1.7 dB
f2.2
f2.2
k2.2
f0.6