Mike Granby wrote:

Garmin needs to provide a way for us to
get rid of it without voiding the warranty.

Would sticking a steel (or better, soft iron) disk to the antenna help
by keeping the field lines contained? My physics is a bit rusty, but
ISTR it would help...

It would be reduced if the iron formed a closed loop between the North
and South poles.

--
Jim Pennino

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