Location Of Bandwidth Adjustments - HP 8566B Adjustment Manual

9. Impulse Bandwidth Adjustments
4-28 Option 462
13. Using the DATA knob, adjust the marker down one side of
the display signal to the 7.3 dB point; CRT MKR A annotation
indicates 0.430 X.
I F C O N T R O L
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Figure 4-8. Location of Bandwidth Adjustments
14. Adjust A4A9R61 1 MHz for MKR A indication of 500 kHz while
maintaining the marker at 0.430 X using the DATA knob. Refer to
Figure 4-8 for the adjustment location.
15. Press MARKER a]. Adjust marker to the opposite side of the
signal (CRT MKR A annotation indicate 1.00 X). There are now
two markers; one on each of the signal at the 7.3 dB point.
16. The CRT MKR A annotation now indicates
of the 1 MHz bandwidth. The impulse bandwidth should be 1.00
MHz fO.10 MHz.
17. Key in 300 kHz,
and (MKRj. If necessary, readjust by pressing
[REFERENCE LEVEL]] and using the DATA knob to place the
signal peak at the top of the graticule.
18. Press MARKER m then MARKER a].
19. Using the DATA knob, adjust the marker down one the displayed
signal to the 7.3 dB point; CRT MKR A annotation indicates 0.430
X.
20. Adjust A4A9R62 300 kHz for MKR A indication of 150 kHz while
maintaining marker at 0.430 X using the data knob. Refer to
Figure 4-8 for location of adjustment.
21. Press MARKER [nl. Adjust the marker to the 7.3 dB point on the
opposite side of the signal (CRT MKR A annotation indicates 1.00
22. The CRT MKR A annotation now indicates the impulse bandwidth
of the 300 kHz bandwidth. The impulse bandwidth should be
300.00 f30.00 kHz.
23. Key in 10 kHz,
and (MKR). If necessary, readjust by pressing
the impulse bandwidth
500 kHz,
20 kHz,