Band 4 Adjustment (Hp 83630A/40A/50A); Band 5 Adjustment (Hp 83640A/50A Only) - Agilent Technologies 83620A Service Manual

Band 4 Adjustment (HP 83630A/40A/50A).

117. On the synthesizer, set:
START 20 GHz
5 5 5
STOP 26.5 GHz
5 5 5
CONT SWEEP TIME
5
POWER LEVEL 25
5 5
118. Decrease the synthesizer power level until the level of the entire trace on
the oscilloscope begins to drop.
119. Switch between the fastest sweep time (0 ms) and 200 ms sweep time
and check that power changes less than
appropriate rise term (steps 122 and 123) and then repeat this step.
120. On the synthesizer, set:
SWEEP TIME 0 msec
5 5
121. a. Press several times to initiate several sweeps. Note any drop in
SINGLE
5
power.
b. Press
SINGLE R ON/O
5
note any drop in power.
c. he power loss noted in step a can be no smaller than the power loss
noted in step b. If the step a power loss is greater than the step b
power loss by 1 division (
adjustment #564 to put the A term at the high end of the peak. hen
repeat from step 119.
If the power loss in step a is
rest of \Band 4 Adjustment" and continue with \Band 5 Adjustment".
122. Adjust calibration constant #564, Y F Dly erm A Hrm 4, to maximize
power for the low end of band 4.
123. Adjust calibration constant #574, Y F Dly erm B Hrm 4, to maximize
power for the high end of band 4.

Band 5 Adjustment (HP 83640A/50A only).

124. On the synthesizer, set:
START 26.5 GHz
5 5 5
STOP 33.4 GHz
5 5 5
CONT SWEEP TIME
5
POWER LEVEL 25
5 5
125. Decrease the synthesizer power level until the level of the entire trace on
the oscilloscope begins to drop.
3-76 Adjustments
Amplifier/Filter Adjustments
All manuals and user guides at all-guides.com
0 msec
5 5 5
dBm
5

2/3 division. If not, adjust the
5
. hen press
5

1.5 dB), increase the A term of the delay
smaller than that in step b, skip the
not
0 msec
5 5 5
dBm
5
again (LED on) and
R ON/O
5
HP 8360