HP 8920A Application Handbook page 225

Measurement Procedure:
1. Connect the Adapter as shown.
CAUTION: Do not exceed the connector's rated input or permanent instrument damage
may result.
On the Test Set:
2. Press the PRESET key.
Using the knob and data entry keys:
3. Select the SPEC ANL screen.
4. From the Controls select Ant.
5. Set Center Freq to the pass frequency of the cavity under test.
6. Set Span to view desired frequency range.
7. Set Ref Level to −10 dB (or greater).
8. From Controls, select Main.
9. Select RF Gen from the Choices field.
10. From Controls select Track.
Amplitude default of −10 dBm is typically sufficient for performing
NOTE:
measurements on passive cavities, however higher levels may be needed to
measure the cavity notch depth. The level can be changed to suit measurement
needs (e.g. increase measurement range, minimize incident input from other
sources, etc.). If Amplitude is changed, Ref Level will also have to be
changed.
11. From the Controls select RF Gen.
12. Select Auxiliary from the Choices field.
13. From Normalize select A Only.
14. From Normalize select Save B.
15. From Normalize select A-B.
16. From Controls, select Auxiliary.
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Using the Tracking Generator
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