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PXIe-5665 Calibration Procedure
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© National Instruments
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4.
Set the RF source 2 power to -10 dBm.
5.
Set the RF source 2 frequency according to the first row in Table 8.
6.
Measure the
Channel B Power
using the appropriate calibration factor for the RF source 2
frequency. Adjust the RF source 2 power until this measured power is within ±0.1 dB of
-10 dBm.
7.
Store the RF source 2 set power as the
RF Source Power through Splitter
.
8.
Repeat steps 5 to 7 for all remaining frequencies in Table 8.
Characterizing RF Source Power (with Splitter and
Attenuator)
Note
Prior to starting this procedure, zero and calibrate the power sensor and define
the power splitter reference output using the procedures in the
Characterizing Power Splitter Reference Output
sections of this document.
1.
Connect the RF source 2 output to the power splitter input through the SMA (m)-to-
SMA (m) cable.
2.
Connect power sensor A to the reference output of the power splitter.
Table 8.
RF Source 2 Frequencies
Start Frequency
Stop Frequency
Step Size
100 MHz
3.5 GHz
200 MHz
3.6 GHz
—
—
3.7 GHz
14 GHz
100 MHz