NI PXIe-5694 Calibration Procedure
|
© National Instruments
|
21
16. Connect the remaining power splitter output to power sensor B.
Figure 5.
Power Meter to Splitter Connection
17. Reset RF source 1 to one of the frequencies listed in the
Frequency
column on Table 5.
18. Measure the channel A power and the channel B power using the appropriate sensor
calibration factor for the frequency. Use the following equation to calculate and record the
Splitter Tracking Error
value for the appropriate frequency in Table 5.
Splitter Tracking Error
=
Channel B Power
-
Channel A Power
19. Use the following equation to calculate and record the
RF Source Cable/Splitter Loss
value
for the appropriate frequency in Table 5.
RF Source Cable/Splitter Loss
=
Reference Source Measurement
-
Channel B Power
where
Reference Source Measurement
is the corresponding measurement
recorded in Table 5 for the frequency.
20. Repeat steps 17 through 19 for each frequency in Table 5.
1
Power Meter
2
SMA (m)-to-SMA (m) Cable
3
Power Sensor B
4
Power Splitter
5
Power Sensor A
6
RF Source Cable
7
RF Source 1
1
2
2
4
3
5
7
6
