HP 8560E Service Manual

68 Chapter2
Adjustment Procedures
2. Display Adjustment (8560E only)
Fast Zero Span Adjustments
NOTE The following adjustments apply only to analyzers not equipped with
Option 007, fast digitized time domain sweeps.
22.Set A2R209 SWEEP OFFSET, A2R218 VIDEO OFFSET, A2R268
VIDEO GAIN and A2R271 SWEEP GAIN to midrange. Adjustment
locations are shown in Figure 2-4 on page 67 for these A2
adjustments.
23.Set the HP 355D attenuator to provide 30 dB attenuation.
24.Press
PRESET on the spectrum analyzer, and connect the equipment
as shown in Figure 2-2 on page 63. Set the HP 8560E/EC controls as
follows:
Center frequency ...........................................................300MHz
Span .......................... ............................................................0Hz
Reference level ..................... ..........................................−40dBm
Resolution BW ......................... ...........................................1kHz
Video BW ........................ ..................................................300Hz
Sweep time ........................ .................................................50ms
25.Press
MKR, MKR->, and MARKER-> REF LVL. If the marker is not at
the top graticule, press
MARKER-> REF LVL again.
26.Press
SAVE, SAVE STATE, and STATE 0.
27.Set the sweep time to 10 ms.
28.Press
SAVE, SAVE STATE, and STATE 1.
29.Adjust A2R209 SWEEP OFFSET to place the beginning of the trace
at the leftmost vertical graticule line.
30.Adjust A2R271 SWEEP GAIN to place the end of the trace at the
tenth vertical graticule line (one division from the right edge of the
graticule).
31.Press AMPLITUDE and press the ⇓ key 7 times.
32.Press
SAVE, SAVE STATE, and STATE 2.
33.Set the sweep time to 50 ms. Press
SAVE, SAVE STATE, and STATE 3.
34.Press
RECALL, RECALL STATE, and STATE 1.
35.Switch between
STATE 1 and STATE 2. Adjusting A2R268 and
A2R218 so that in STATE 1 the trace is lined up with the top
graticule and in STATE 2 the trace is lined up with the eighth
graticule (from the top line). Repeat until they align to within
±0.2 divisions.

HP 8560E Specifications

General

Brand	HP
Model	8560E
Category	Measuring Instruments
Language	English