NI PXIe-5601 Calibration Procedure
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© National Instruments
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7
3.
Connect power sensor B to the other output of the power splitter. Figure 1 shows the
completed equipment setup.
4.
Measure the channel A and channel B power, using the appropriate frequency for the power
sensor, for all frequencies between 10 MHz and 7 GHz with the RF source power set to
0 dBm.
Note
Use the log-like frequency progression: 10, 20, 30, ..., 100, 200, 300, ...,
1,000 MHz, and so on. Also include the discrete frequencies 53 MHz and
187.5 MHz.
5.
Calculate the
RF Input Calibration Factor
(dB) for each frequency using the following
equation:
RF Input Calibration Factor
=
Channel B Power
-
Channel A Power
Figure 1.
RF Input Calibration (Without Attenuator) Equipment Setup
1
RF Source
2
Power Splitter
3
Power Sensor A
4
Power Meter
5
Power Meter Channel A
6
Power Meter Channel B
7
Power Sensor B
1
3
4
7
2
5
6
