Frequency sweep usinf VSG25A Vector Signal Generator

Hi,
I have VSG25A Vector Signal Generator and I want to test wideband PA performance, when I choose step sweep it is showing start and stop frequency but when I connect to spectrum analyzer I didn’t receive any signal.
Can anyone suggest me that whether any setting issue or we can’t do frequency sweep through this signal generator?

Thanks.

The most basic checks are:
1) Did you click “RF ON” to turn the RF output on?
2) Did you click “MOD ON” to enable modulation and sweeps?

Let me know if this does not work.

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