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Ant light turn on whith lineal amplifier - Cobra 29 LTD CB Radio

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Your antenna light alerts you of high S.W.R.

Say your S.W.R. is fine, maybe 1.5:1, and so the antenna light is not on when the amplifier is off.

1.5:1 means 4% reflected power. With just the radio this is less than 1/4 watt. However, turn on the amplifier and 4% is much more and the radio may think the S.W.R. is higher.

That's one option, which may not be a problem. Another possibility is the S.W.R. actually increases which could be from a amplifier which is not true 50 ohms and/or lack of grounding for the increased power level. amduke@mail.com Communications Solutions

Posted on Jun 05, 2010

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Posted on Jan 02, 2017

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