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PXIe-5673E Calibration Procedure
10. Repeat steps 5 through 9 for the remaining frequencies listed in the
Frequency
column in
Table 13.
If the results are within the selected test limit, the device has passed this portion of the
verification.
Verifying Frequency Accuracy
Complete the following steps to verify the frequency accuracy of a PXIe-5673E using a
spectrum analyzer.
1.
Connect the PXIe-5611 RF OUT front panel connector to the spectrum analyzer RF INPUT
front panel connector through the SMA(m)-to-SMA(m) cable.
2.
Connect any available rubidium frequency reference rear panel BNC connector to the
spectrum analyzer REF IN rear panel connector through the BNC(m)-to-BNC(m) cable.
3.
Generate a signal with the following niRFSG properties:
•
Frequency (Hz): 400 MHz
•
Power Level (dBm): 0 dBm
•
Generation Mode: CW
•
Reference Clock Source: Onboard Clock
4.
Use the spectrum analyzer to measure the frequency of the peak tone using the following
spectrum analyzer parameter settings:
•
Center frequency: 400 MHz
•
Reference level: +5 dBm
•
Resolution bandwidth: 100 Hz
•
Span: 100 kHz
Table 13.
SSB Phase Noise at 10 kHz Offset
CW Source
Frequency (GHz)
Test Limit (dBc/Hz)
PXIe-5650/5651/5652
0.5
<-111
1.0
<-105
PXIe-5651/5652
2.0
<-98
3.0
<-95
PXIe-5652
4.0
<-93
5.0
<-90
6.6
<-90
