HP 8568B, Performance Tests And Adjustments Manual, Page: 200 / 313

9. 3 Bandwidth Adjustments
22. CRT MKR A annotation now indicates the 3 bandwidth of the
300 bandwidth. 3 bandwidth should be 300.0
23. Key in 10 and
[
FREQUENCY
20 If
necessary, readjust and
[
CENTER FREQUENCY
),
using DATA knob to place signal peak near top of graticule and
centered on center graticule line.
24. Press MARKER then MARKER [ ].
25. Using DATA knob, adjust marker down one side of the displayed
signal to the 3 point; CRT MKR A annotation indicates X.
26. Adjust 10 for MKR A indication of 5.00 while
maintaining marker at 3 point 707 X) using DATA knob. See
Figure 3-45 for location of adjustment.
27. Press MARKER A. Adjust marker to 3 point on opposite side of
signal (CRT MKR A annotation indicates 1.00 X).
28. CRT MKR A annotation now indicates the 3 bandwidth of the
10 bandwidth. 3 bandwidth should be 10.0 fl.O
29. Key in 3 and
SPAN
)
5 If necessary,
readjust [REFERENCELEVEL) and
[
CENTER FREQUENCY
],
using DATA
knob to place signal peak near top of graticule and centered on
center graticule line.
30. Press MARKER (OFF), then MARKER
31. Using DATA knob, adjust marker down one side of the displayed
signal to the 3 point; CRT MKR A annotation indicates X.
32. Adjust 3 for MKR A indication of 1.5 while
maintaining marker at 3 point X) using DATA knob. See
Figure 3-45 for location of adjustments.
33. Press MARKER Adjust marker to 3 point on opposite side
of signal (CRT MKR A annotation indicates 1.00 X).
34. CRT MKR A annotation now indicates
the
3 bandwidth of the 3
bandwidth. 3 bandwidth should be 3.00
Adjustments