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Troubleshooting R&S
ZVAX24
1312.7979.82 3.26
E-1
Testing the stop band transmission loss (filter on)
[
Preset
]
- [
Mode
: ZVAX Path Config : Src 1 Harmonic Filter ]
- [
Mode
: Port Config.. : (Set port 1 source and receiver freqs to 2·fb)
- [
Start
: 1 GHz ]
- [
Stop
: 12 GHz ]
- [
Pwr BW AVG
: Meas Bandwidth : 1 kHz ]
- [
Meas
: S21]
- [
Trace
: Trace Funct: Data -> Mem : Math = Data/Mem ]
- [
Trace
: Trace Select : Trace Manager… : (
Switch memory trace off
) ]
- [
System Config
: Service Function… : Enter Password: (
Enter password for service level 3
):
1.1.2.10.1.0,5 ]
If the S21 values displayed on the R&S ZVA's screen are not within the range shown in the table below,
the harmonic filter must be replaced.
Frequency range
Transmission loss
1 GHz to 1.5 GHz
> - 37.0 dB
1.5 GHz to 2.2 GHz
> - 38.0 dB
2.2 GHz to 3.0 GHz
> - 36.5 dB
3.0 GHz to 4.2 GHz
> - 36.5 dB
4.2 GHz to 6.0 GHz
> - 37.0 dB
6.0 GHz to 8.4 GHz
> - 35.5 dB
8.4 GHz to 12 GHz
> - 36.0 dB
Testing the Harmonic Filter (R&S ZVAX-B252)
Disconnect the RF cables W211 and W230 from the harmonic filter.
Set the R&S ZVA to sweep mode 10 MHz to 24 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.
Connect the test cable from port 1 to the input X1 and the test cable from port 2 to the output X2.
Testing the insertion loss (filter off):
Set the R&S ZVA to Meas S21.
Read transmission S21.
If the S21 values displayed on the R&S ZVA's screen are not within the range 0 dB to -1.5 dB, the
transfer switch must be replaced.
Содержание ZVAX24
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