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PXIe-5665 Calibration Procedure
3.
Connect the spectrum analyzer to the other power splitter output through the
SMA (m)-to-SMA (m) cable. The completed equipment setup is shown in Figure 8.
Figure 8.
Spectrum Analyzer Response Characterization Equipment Setup
4.
Set the RF source 2 power to 0 dBm.
5.
Set the RF source 2 frequency to 4 GHz.
6.
Configure the spectrum analyzer according to the following settings:
•
Resolution bandwidth: 1 kHz
•
Center frequency: 4 GHz
•
Frequency span: 0 Hz
•
Reference level: 0 dBm
7.
Measure the power sensor A power.
8.
Correct the power sensor A measured power for the measurement frequency of 4 GHz.
9.
Correct the power sensor A measured power for the
Power Splitter at 4 GHz Correction
Factor
from the
Characterizing Power Splitter Difference
equipment characterization
section of this document using the following equation:
Corrected Power Sensor Power
=
Power Sensor A reading
+
Power Splitter at 4 GHz
Correction Factor
1
RF Source 2
2
SMA (m)-to-SMA (m) cable
3
Power Splitter
4
Power Sensor A
5
10 dB Attenuator
6
SMA (m)-to-SMA (m) cable
7
Spectrum Analyzer
8
Power Meter
3
6
5
4
1
8
7
2