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NI PXIe-5694 Calibration Procedure
9.
Reconfigure the NI 5694 as follows:
•
Reference Clock source: PXI_Clk
•
Reference level: -30 dBm
•
IF output power level: +10 dBm
•
Downconversion enabled: TRUE
•
Device instantaneous bandwidth: The first value shown in the
Device Instantaneous
Bandwidth
column in Table 7
•
Step gain: The value in the
Step Gain
column in Table 7 corresponding to the
configured device instantaneous bandwidth
10. Record the power reported by the spectrum analyzer in the appropriate
IF OUT Power
cell
in Table 7.
11. Use the formula from step 6 to compute the path gain and record it in the corresponding
Path Gain
cell in Table 7.
12. Repeat steps 9 through 11 for each of the remaining values in the
Device Instantaneous
Bandwidth
column in Table 7.
Table 7.
Path Gain, Downconversion Enabled
Device
Instantaneous
Bandwidth (Path)
Step Gain
IF OUT Power
(dBm)
Path Gain
20 MHz
Disabled
Enabled
5 MHz
Disabled
Enabled
1.4 MHz
Disabled
Enabled
400 kHz
Disabled
Enabled
110 kHz
Disabled
Enabled
30 kHz
Disabled
Enabled
