NI PXIe-5693 Calibration Procedure
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© National Instruments
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21
7.
Set the spectrum analyzer center frequency according to the first row in Table 5.
8.
Commit the NI 5693 settings to hardware.
9.
Record the spectrum analyzer marker amplitude.
10. Repeat steps 6 through 9 for all remaining frequencies described by Table 5. The results
from steps 9 and 10 are referred to as
Cal Cold (dBm)
.
11. Repeat steps 6 through 10 with the spectrum analyzer noise source control turned on. The
results from step 11 are referred to as
Cal Hot (dBm)
.
12. Connect the NI 5693 RF OUT connector to the spectrum analyzer RF IN connector using
the SMA (m)-to-SMA (m) cable (36 in.).
13. Connect the noise source output to the NI 5693 RF IN connector.
Table 5.
Noise Figure Verification Test Frequencies
Start Frequency
Stop Frequency
Frequency Step
21.2 MHz
201.2 MHz
20 MHz
401.2 MHz
6,801.2 MHz
200 MHz
7 GHz
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