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Old 06-18-2018, 7:50 AM
FiveFilter FiveFilter is offline
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Join Date: Jan 2016
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I run a 56-inch Wilson 500 mag-mount antenna too. I've had great results on top of a steel-bodied car, with no such problems.

Make sure your radio chassis is grounded to help any common mode currents on the coax to get to ground. This is more important with a mag-mount antenna than one that is grounded via a physical contact with the vehicle's metal base, such as a mount situated through a drilled hole provides.

Congrats on finding what's working for you: the chokes.
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