Here's another aricle, by W8JI, on feeding the EFHW:
http://www.w8ji.com/end-fed_1_2_wave_matching_system_end%20feed.htm
Bob NW8L
On Thu, 14 Jul 2016, Don Wilhelm wrote:
Dave,
All that is theoretical does not translate directly to the physical world.
Take a look at http://www.aa5tb.com/efha.html for more information.
The counterpoise does not need to be very long, but it does need to be
present.
If the coupling between the high impedance side of the matching device is
connected at the "ground side" to the shield of the coax, then the coax
shield can act as the counterpoise (with the attendant risk of
RF-in-the-shack), but does require some minimum length of coax to be
effective - the PAR EndFedZ is one example.
73,
Don W3FPR
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