This question applies to an 80m vertical - but this reflector is
probably the most likely to provide an answer !
I am playing with a 38 foot vertical , with a loading coil about
10 feet from the top , and three wires each ten feet long forming a
capacity hat immediately above the coil. These are incorporated into
nylon guys and slope down at maybe 30 degrees to the horizontal.
The antenna is ground isolated and fed against a reasonably
substantial buried radial system ; with a matching coil across the input.
Is there a recognised rule to determine the optimum length of the
capacity hat wires - and also would increasing the number of these
wires from three to -say- seven improve the efficiency of the antenna
to any significant degree ?
Please reply direct and I will summarise to the reflector if appropriate.
Many Thanks
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Terry George . G4AMT - On the edge of the Atlantic at Sennen Cove, Cornwall.
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