Log Scale Switching Uncertainty Test - HP 8566B Adjustment Manual

Video Processor Adjustments
f0.5 dB (uncorrected; 20" to 30°C)
The log scale is stepped from 1 dB/DIV to 10 dB/DIV and the variation
in trace amplitude from the 1 dB/DIV setting at each step is measured.
None required
1. Press @ZZiZj.
2. Key in analyzer settings as follows:
FREQUENCY
(
FREQUENCY
] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-8 dBm
REFERENCE LEVEL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 kHz
(
3. Press LOG
ENTER
division.
4. Connect CAL OUTPUT to RF INPUT.
5. Press MARKER (
PEAK SEARCH
marker amplitude (upper right of display) in 'Iable 2-8.
6. Step up through the log scales with @. At each step, press
[
MARKER
PEAK SEARCH
7. Subtract the marker amplitude at the 1 dB/DIV setting from the
marker amplitudes recorded for the 2, 5, and 10 dB/DIV settings to
obtain the amplitude deviations. The deviation should be less than
f0.5 dB for each log scale.

6. Log Scale Switching Uncertainty Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ,100
]
and key in a log scale of 1 dB per
] and
REF
],
then record the marker amplitude in
MHZ
100 kHz
Record the
Performance Tests 2-19