HP 8566B Adjustment Manual page 65

10. Frequency Response Test
lb provide the spectrum analyzer with a 60 MHz to 22 GHz input
signal of sufficient flatness for measuring frequency response and
absolute amplitude accuracy, the synthesized sweeper must be
externally leveled with a power meter, using a relatively slow sweep
time (at least 40 seconds).
43. On the spectrum analyzer, key in (2-22J, LSHIFT) TRACE A
t
CENTER FREQUENCY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 MHz
FREQUENCY SPAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 MHz
RES BW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . .3 MHz
VIDEO BW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 MHz
LOG SCALE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 dB/DIV
REFERENCE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -7 dBm
44. On the spectrum analyzer, press MARKER
adjust the front-panel AMPTD CAL control for a MARKER
indication of -10.00 dBm fO.O1 dB.
45. On the synthesized sweeper, key in
46. On the spectrum analyzer, key in
MAX HOLD .
47. On the synthesized sweeper, press SWEEP (SINGLE_) and wait for a
sweep to complete (150 seconds) and the SWEEP LED to turn off.
As the synthesized sweeper tunes from 60 MHz to 2.5 GHz, the
spectrum analyzer frequency response is displayed as TRACE B
(TRACE A displays the current input signal). When the sweep has
completed, the display should appear as shown in Figure 2-20.
he spectrum analyzer controls as follows:
[
PEAK SEARCH
[
START
60 MHz,
( - ),
TRACE B
CLEAR WRITE
)
and
60 MHz,