2. Call niFgen ni5433 Flatness Cal Configure.
3. Call niFgen ni5433 Flatness Cal Adjust with the following settings:
• Measured Power (dBm): 0 dBm
4. Connect the power sensor with the SMA (m)-to-N (f) adapter attached to CH 0 of the
PXIe-5413.
5. Call niFgen ni5433 Flatness Cal Configure to obtain the Current Configuration and
Next Configuration outputs.
6. Configure the power sensor with the following settings:
• Auto range: Enabled
• Maximum noise ratio: 0.005 dB
• Power measurement: Continuous average
• Path selection: Automatic
• Averaging: Automatic
• Aperture: 20 ms
• Timeout: 10 s
• Frequency: Frequency returned by the Current Configuration output of niFgen
ni5433 Flatness Cal Configure in the previous step
7. Wait 1 second for settling.
8. Measure the power of the signal using the power sensor.
9. Call niFgen ni5433 Flatness Cal Adjust with the following settings:
• Measured Power (dBm): Power of the waveform present on CH 0 of the
PXIe-5413 and measured by the power sensor in the previous step in dBm
10. If the Next Configuration output of niFgen ni5433 Flatness Cal Configure obtained in
step 5 returns CH 0, repeat steps 5 through 9. If the Next Configuration output of niFgen
ni5433 Flatness Cal Configure obtained in step 5 returns CH 1, continue to step 11.
11. Connect the SMA (m)-to-N (f) adapter and power sensor assembly to CH 1 of the
PXIe-5413.
12. Call niFgen ni5433 Flatness Cal Configure to obtain the Current Configuration output.
13. Configure the power sensor with the following settings:
• Auto range: Enabled
• Maximum noise ratio: 0.005 dB
• Power measurement: Continuous average
• Path selection: Automatic
• Averaging: Automatic
• Aperture: 20 ms
• Timeout: 10 s
• Frequency: Frequency returned by the Current Configuration output of niFgen
ni5433 Flatness Cal Configure in the previous step
14. Wait 1 second for settling.
15. Measure the power of the signal using the power sensor.
PXIe-5413 Calibration Procedure | © National Instruments | 17
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