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2. Display Adjustment
A2R215
A2R263
AZR262 AZR268
DGTLY
GAlN
START BLANK
STOP BLANK
VIDEO GAIN
AZR206
DGTLY GAIN
Figure 2-4. A2 Display Adjustment Locations
SK14
Fast
Zero
Span
Adjustments
22. Set A2R209 SWEEP OFFSET, A2R218 VIDEO OFFSET, and A2R268 SWEEP GAIN
to midrange. Adjustment locations are shown in Figure 2-4 for these A2 adjustments.
23. Set the HP 355D to 30 dB attenuation.
24. Press
(PRESET)
on the spectrum analyzer,
and connect the equipment as shown in
Figure 2-2. Set the spectrum analyzer controls as follows:
Centerfrequency
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..300MHz
Span
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OHz
Reference level
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
dBm
Resolution bandwidth
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kHz
Videobandwidth
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300Hz
Sweep time
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50ms
Adjustment Procedures 2-19