PXIe-5665 Calibration Procedure
|
© National Instruments
|
17
Characterizing RF Source Power (Combined) for
Frequencies
≤
700 MHz
Note
Prior to starting this procedure, zero and calibrate the power sensor according
Zeroing and Calibrating the Power Sensor
section of this document.
1.
Connect the RF source 1 and RF source 2 outputs to power sensor B through the
anti-distortion test fixture. The completed equipment setup is shown in Figure 4.
Figure 4.
RF Source Power (Combined) Characterization Equipment Setup
(Frequencies
≤
700 MHz)
2.
Set the anti-distortion test fixture to the
≤
700 MHz combiner path.
1
RF Source 1
2
RF Source 2
3
SMA (m)-to-SMA (m) Cable
4
SMA (m)-to-SMA (m) Cable
5
Anti-Distortion Test Fixture
6
SMA (m)-to-SMA (m) Cable
7
3.5 mm (f)-to-3.5 mm (f) Adaptor
8
Power Sensor B
9
Power Meter
RF
OUTPUT
RF
INPUT 1
NI-5665 ANTI-DISTORTION ET 166375A
RF
INPUT 2
6
1
5
2
8
7
4
3
9