JIMMIE wrote:
HAs anyone ever tried using a long whip with a screwdriver matching
network. For example I have a telescoping 18ft whip and I was
wondering how it might work with it. I have never used a screwdriver
antenna before and the whip collapses to a little over 6ft.

It's done quite often for non-mobile antennas,
fixed and portable. Mobile antennas are limited
to about 12.5 ft above the ground.
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73, Cecil http://www.w5dxp.com