Topband: SP5EWY vertical

Rudy Severns rudys at ordata.com
Wed Feb 11 10:16:57 EST 2004


Richard,  I have three top loaded verticals about your height in my
array.  I
adjusted the top loading (only two wires sloping) so the vertical was
resonant a bit high in
frequency.  I then put a small inductance ( 10 cm dia,  6
mm Cu tubing, about 6 uH) at the base to tune to resonance.  I tapped
up on
the coil for a match.

Very simple and works well.  The loss in the coil is small since the Q
is high and the inductance small.

GL and 73, Rudy N6LF





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