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NI PXI-5663 Calibration Procedure
4.
Connect a 50
Ω
terminator to the NI 5601 LO OUT connector. Figure 3 shows the
completed equipment setup.
Figure 3.
Absolute Accuracy Equipment Setup
5.
Create a new session for the NI 5663 using the niRFSA Initialize VI or the
niRFSA_init
function.
6.
Perform a self-calibration on the NI 5622 using the niRFSA Self Cal VI or the
niRFSA_SelfCal
function.
7.
Lock the NI PXI-5652 to the reference used by the test equipment. Use the niRFSA
Configure Ref Clock VI or the
niRFSA_ConfigureRefClock
function.
8.
Set the NI 5663 to make a spectrum acquisition using the niRFSA Configure Acquisition
Type VI or the
niRFSA_ConfigureAcquisitionType
function.
1
RF Source
2
Power Splitter
3
Power Sensor A
4
Power Meter
5
Power Meter Channel A
6
50
Ω
Terminator
7
30 dB Attenuator
*
* Used for reference levels <-30 dBm.
1
ACCESS
ACTIVE
CLK IN
CLK OUT
PFI 1
ESD
SENSITIVE
TTL
6.3 Vp-p
MAX
2 Vp-p
NOM
+20 dBm MAX
50
Ω
50
Ω
50
Ω
NI PXIe-5622
16-Bit IF Digitizer
IF IN
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
5
3
4
6
7
2