NI PXIe-5601 Calibration Procedure
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© National Instruments
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3.
Connect the power splitter reference output to power sensor A.
4.
Ensure that the 50
Ω
terminator is connected to the NI 5601 LO OUT connector.
5.
Connect the other power splitter output to the NI 5601 RF IN connector through the
3.5 mm-to-3.5 mm adapter. Figure 8 shows the completed equipment setup.
Figure 8.
Gain Compression Equipment Setup
Note
The figure shows NI PXI-5652, but you can also use NI PXIe-5652.
6.
Create a new session for the NI 5601 using the niRFSA Initialize With Options VI or the
niRFSA_initWithOptions
function. Set the Driver Setup portion of the
option string
parameter to
DriverSetup=Digitizer:<external>
.
1
RF Source
2
Power Splitter
3
Power Sensor A
4
LO Source
5
Power Meter
6
Power Meter Channel A
7
Spectrum Analyzer
8
Spectrum Analyzer Input
9
50
Ω
Terminator
10 Adapter
0 dBm NOM
RF IN
IF OUT
LO IN
LO OUT
10 MHz – 6.6 GHz
ACCESS
ACTIVE
ALL PORTS
±5 VDC MAX
50
Ω
0 dBm NOM
+20 dBm MAX
+20 dBm MAX
+20 dBm MAX
[+30 dBm MAX
w/Attenuation]
RF Downconverter
NI PXIe-5601
4
7
1
6
3
5
7
9
10
2
7
8