Coax length is unimportant. However much you need to get from the
antenna to your radio is plenty.

If you're matching SWR with coax length, there's something wrong with
your antenna.

-SSB

Guntier C. wrote:

I received and old wilson 1000 mag. mount and want to put it on my quad
(4 magnet) mount. I hear that I need a 18 ft. piece of coax for a
counterpoise. Is that true? Any info appreciated.

Thanks,

G.C.