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Old 08-27-2016, 11:02 PM
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7.5 dB gain is less likely to result in overload than 10 dB. In cable applications, you expect the input to be above the noise floor and the channels to all have similar power, so the desired operating condition is the maximum output without cross-mod / intermod among the large number of channels.

For an antenna amp, you really want only enough gain to get the weakest signal above the tuner noise, so you have lots of head room for wildly unbalanced high levels that may be present on the stronger stations. That's why the alarm about whether your amp was designated as an antenna amp.
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