"Caveat Lector" wrote in message
news:PYs%f.12664$bm6.7806@fed1read04...
Since aluminum is non magnetic, I would assume a mag-mount vertical would
not couple properly to a aluminum ground plane.

Thoughts ?
--
CL -- I doubt, therefore I might be !
\

Not to worry. All-aluminum antennas are quite practical, as it is the
conductivity of the counterpoise/radials that makes it work. Also,
please consider the many vertical antennas working off buried
copper wires for their ground plane.

If you need magnetic properties on a large aluminum surface (roof?),
then cement a small sheet of steel to the aluminum with any handy
adhesive. NOT stainless, though; it's generally non-magnetic.