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NI PXIe-5601 Calibration Procedure
7.
Lock the NI PXI/PXIe-5652 to the Reference Clock used by the external test equipment.
Use the niRFSA Configure Ref Clock VI or the
niRFSA_ConfigureRefClock
function.
8.
Set the NI 5601 reference level to -10 dBm using the niRFSA Configure Reference
Level VI or the
niRFSA_ConfigureReferenceLevel
function.
9.
Set the NI 5601 center frequency according to Table 17 using the Center Span instance of
the niRFSA Configure Spectrum Frequency VI or the
niRFSA_ConfigureSpectrumFrequencyCenterSpan
function. Set the
span
parameter to 2 MHz.
10. Commit the settings to hardware using the niRFSA Initiate VI or the
niRFSA_Initiate
function.
11. Set the spectrum analyzer using the following settings:
•
Reference level: 20 dBm
•
Frequency span: 10 kHz
•
Resolution bandwidth: 1 kHz
•
Video bandwidth: 500 Hz
•
Center frequency: Refer to Table 18
12. Set the RF source to the center frequency in Table 17.
13. Wait at least 1 second.
Table 17.
NI 5601 Center Frequency
Start (MHz)
Stop (MHz)
Step (MHz)
10
—
—
20
—
—
40
—
—
80
—
—
100
—
—
500
6,500
500
Table 18.
NI 5601 IF Output Frequency
NI 5601 Center Frequency
NI 5601 IF Output Frequency
(Spectrum Analyzer Center Frequency)
10 MHz to <120 MHz
187.5 MHz
120 MHz to < 330 MHz
53 MHz
330 MHz to 6.6 GHz
187.5 MHz