here's the link .....
A High Efficiency Extended Length Mobile Antenna
and a few pics ....
cheap option to a screwdriver ... ??? it seems to basically be like a 10k (or any other external coil antenna) but coil is slightly off-set from center and detachable . change coils to change the center frequency of use . i wouldn't drive with it . but it might make a good antenna for sitting on a hill or mountain top in a mobile or a base .
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