Tony Allen EI4DIB, (Drogheda,Ireland).
Everything and anything to do with the 4m, 70 MHz amateur radio band.
Thursday, 7 April 2011
A "J-pole" half-wave vertical for Four
I'm not sure who originated this drawing, but it was published in
Four Metres News
in September 1995, sent in by G7OGQ and G8CVF.
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