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I am doing a duplexer Sinclair Q2330E measurement.
I short-circuit the measuring cables and push the “Store Thru” button.
This operation is shown in the picture test1.png
I’m connecting a duplexer.
This operation is shown in the picture test2.png
Why is the measurement over 0dB? Marker 3 shows gain ??What am I doing wrong ?
Artur
It looks like some strong VSWR effects. I would throw a 6 or 10 dB attenuator on the SA and TG and repeat the test. If this does not solve the problem, I would try different cables.
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