In message , J. B. Wood
writes

Hello, and I'll also state from experience that mag-mounted whip
antennas are not for vehicles in motion at any speed. Sincerely and
73s from N4GGO,

A whippy stainless steel 'base loaded' 2m 5/8 on a 7" magmount is almost
impossible to remove. It's probably good for 200 or 300 mph at least. I
believe 'like **** to a blanket' is appropriate.
--
Ian