19. Wait 0.1 second for settling.
20. Use the power sensor to measure the power in dBm.
21. Repeat steps 17 through 20 for each configuration in the
Power Splitter Characterization
table, recording each result as
splitter output 1 power
, where each configuration has a
corresponding value.
22. Calculate the splitter balance for each frequency point using the following equation:
splitter balance
=
splitter output 2 power
-
splitter output 1 power
23. Calculate the splitter loss for each frequency point using the following equation:
splitter loss
=
signal generator amplitude level
-
splitter output 2 power
24. Disconnect the 50 Ω BNC terminator (f) from splitter output 2. Refer to the remaining
assembly as the
power sensor assembly
.
The power sensor assembly will be used in the following procedures:
•
Verifying 50 Ω Passband Amplitude Flatness and Bandwidth
•
Verifying 1 MΩ Passband Amplitude Flatness and Bandwidth
•
Adjusting 50 Ω Passband Amplitude Flatness and Bandwidth
•
Adjusting 1 MΩ Passband Amplitude Flatness and Bandwidth
Verification
The performance verification procedures assume that adequate traceable uncertainties are
available for the calibration references.
Verification of the PXIe-5164 is complete only after you have successfully completed all tests
in this section using the
As-Found Limits
.
Refer to the following figure for the names and locations of the PXIe-5164 front panel
connectors. You can find information about the functions of these connectors in the device
getting started guide.
14
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ni.com
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PXIe-5164 Calibration Procedure
