HP 8566B Adjustment Manual page 330

2 1. Frequency Response Adjustments
acceptable range of values for A6AlOR87, and Table 3-4 for HP part
numbers. See Figure 3-90 for the location of A6AlOR87.
90. On the spectrum analyzer, key in
controls as follows:
START FREQ . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.8 GHz
STOP FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5 GHz
RES BW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 MHz
REFERENCE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . -7 dBm
LOG SCALE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 dB/DIV
SWEEP TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500
91. On the synthesized sweeper, key in Icw] 6.0 GHz.
The POWER LEVEL of the synthesized sweeper should still be leveled
to a calibrated -10.00 dBm at 100 MHz at the spectrum analyzer RF
INPUT from step 55.
92.
Adjust 22-turn (IF Offset) potentiometer A6A12R84 C and
signal amplitude at 6.0 GHz on the spectrum analyzer display.
See Figure 3-90 for the locations of A6A12R84 C and A6AlOR15
vc.
93.
On the spectrum analyzer, key in MARKER (j-1, MARKER
[ )
to position a marker at the peak of the displayed
PEAK SEARCH
6.0 GHz signal. Adjust 17-turn (Band C Step Gain) potentiometer
displayed 6.0 GHz marker to -10.00 dBm fO.10 dB. Adjust
clockwise to decrease the signal level. If A6AlOR25 GC does not
have sufficient range, adjust the amplitude of the displayed 6.0
for the location of A6AlOR25 GC.
94.
On the spectrum analyzer, key in LOG SCALE
95.
Readjust 22-turn (IF Offset) potentiometer A6A12R84 C as
necessary to maximize the amplitude of the 6.0 GHz signal on
the spectrum analyzer display.
96.
Set the synthesized sweeper controls as follows:
START FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.8 GHz
STOP FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5 GHz
RF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on
LEVELING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XTAL
SWEEP TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 ms
SWEEP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONT
97.
On the spectrum analyzer, key in TRACE A
( )
SWEEP TIME
analyzer completes each sweep, a series of approximately 23 new
ms
the
(
ENTER