On 6/10/2013 10:13 PM, Rocket J Squirrel wrote:
> I have heard that with a fiberglass pop-top there isn't a sufficient
> ground plane to make a vehicle-mounted antenna work well. But perhaps I
> am mistaken.

If you mount at the front, it's just a matter of inches to connect to
the ground plane.

He was talking about mounting at the rear, grounding to the hatch -
there's a lot of local plane there.

There are also antennas which don't require a ground plane, of course.
At HF, no vehicle (less than a full size semi-trailer) can provide an
adequate ground plane.