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Troubleshooting R&S
ZVAX24
1312.7979.82 3.22
E-1
Testing the Port 2 Receiver Monitor Output (R&S ZVAX-B210
Disconnect the RF cables (W240, W241, W242) from the coupler.
Set the R&S ZVA to sweep mode 1 GHz to 22 GHz.
Connect two test cables to port 1 and port 2 of the R&S ZVA and perform a full 2-port calibration at
the end of the cables.
Set the R&S ZVA to Meas S21.
Testing the insertion loss:
Connect the test cable from port 1 to the input (W240) of the coupler and the test cable from port 2
to the output (W241).
Put a male termination (from calibration kit) to the monitor output (W242) of the coupler.
Read transmission S21.
If the S21 values displayed on the R&S ZVA's screen are not within the range 0 dB to -1.6 dB, the
coupler must be replaced.
Testing the coupling:
Connect the test cable from port 1 to the input (W240) of the coupler and the test cable from port 2
to the monitor output (W242).
Put the male termination (from calibration kit) to the output (W241) of the coupler.
Read transmission S21.
If the S21 values displayed on the R&S ZVA's screen are not within the range -9 dB to -11 dB, the
coupler must be replaced.
Testing the directivity:
Connect the test cable from port 1 to the output (W241) of the coupler and the test cable from port 2
to the monitor output (W242).
Put a male termination (from calibration kit) to the input (W240) of the coupler.
Read transmission S21.
If the S21 values displayed on the R&S ZVA's screen are not smaller than -15 dB, the coupler must be
replaced.
Содержание ZVAX24
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