"John Doe" wrote in message
...
If you can't contribute anything positive to this question, then stay out
of it, with your trash!

I have a 10m base loaded mag mount antenna, that I had to put a piece of
felt over the magnet as not to scratch a new vehicle.

When I did this I apparently changed the capacitance between the mag mount
and the roof of the vehicle. Someone suggested that I might want to
replace the felt with either a large balloon or a large prophylactic as it
is thinner and the capacitance would then return to almost where it should
be.

Positive comments only!



Maybe black, electrical tape on the bottom of the mag mount (applied to that
mag mount, of course.) Would be thinner, but I suspect it might still cause
some problems with increased capacitance. Count paint that mag mount base
with liquid electrical tape, which I get at my local ACE Hardware store.
But then, you could still get some grit underneath the mount. Saran Wrap?
Very thin. Might be your best bet. Tough and flexible. Maybe that would
help...

Good luck.

Dave