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Performance Tests
Power Reference Level Test
4. Preset the power meter:
Preset
Press
, then
Local
Set the Agilent 432A RANGE switch to Coarse Zero. Adjust the front panel
Coarse Zero control to obtain a zero meter indication.
5. Zero the Agilent 432A test power meter:
• Fine zero the Agilent 432A on the most sensitive range.
• Set the RANGE switch to 1 mW.
6. Set the DVM to measure microvolts.
7. Connect the positive and negative input leads to the V comp and V RF connectors
respectively, on the rear panel of the test power meter.
8. Observe the reading on the DVM. If less than 400 µV, proceed to the next step. If
400 µV or greater, press and hold the test power meter Fine Zero switch and
adjust the Coarse Zero control so that the DVM indicates 200 µV or less. Release
the Fine Zero switch and proceed to the next step.
9. Round the DVM reading to two decimal places.
Record this reading as V 0 .
• V 0 ___________
10. Turn the power reference on:
Zero
Press
,
Power Ref On
Cal
11. Round the DVM reading to two decimal places.
Record this reading as V 1 .
• V 1 ___________
12. Disconnect the DVM negative input lead from the V RF connector on the
Agilent 432A. Reconnect it to the Agilent 432A chassis ground.
13. Observe the DVM reading. Record the reading as V comp .
• V comp __________
14. Calculate the Power Reference Oscillator power using equation 2-4.
15. Verify that P meas is within the limits shown in Table 2-5 and record the reading in
the table.
Table 2-5: Power Reference Level Test Result
Min
Max
0.991 mW
1.009 mW
2-18
Confirm
on the power meter.
.
Actual Result
________________
Agilent E4418B/E4419B Service Guide
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