Gee Steve, thanks for setting me straight! I must be one of those that
thinks otherwise.

Bob Swinney
"Steve W." wrote in message
...
Jim, you are correct. The antenna is the vertical element and the
vehicle is the ground plane. That is why the coax is grounded at both
ends and one small open area causes noise. Some of the new antennas are
hidden in the glass with the defroster, or just in the glass around the
edge. Then there are diversity antennas that have 4 antennas embedded in
the bumper covers or other plastic trim. Those are connected to a box
that senses the different signal levels and uses the strongest. Anyone
who thinks otherwise doesn't know how a radio signal functions.

--
Steve Williams

"jim rozen" wrote in message
...
In article %WOTd.62179$wc.45982@trnddc07, Jerry Martes says...

Dont be confused by thinking that the car antenna is just a short
telescoping element. The telescoping (short) mast is actually a
probe that
couples to the car itself. The car is the antenna. The coax feed
line in
the car is only a necesary component for minimizing induced noise.

This is a new one on me - I thought they were verticals using the
car body as a ground plane.

How does this work?

Jim


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