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Can the CM 7777 pre-amp/amp be combined with another antenna that has its own built-in amplifier? I'm talking specifically about the Winegard GS2000A. I'm told that to get a weak VHF signal, such at WPIX-DT in New York, that the 7777 is an especially low-noise solution.
 

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Not really.

A pre-amp is just that, a pre- amp.

The low noise is from the first amplifier stage.

You would be over loading the CM 7777.

And low noise is for a very low signal which would not be the case in your option.


You would probably make things worse, and actually attenuate the signal.
 
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