[Antennas] RE: Gain with wire

[Jim Shaw]

I suspect you can readily install an 'Extended Double Zepp' (EDZ) which is a
single wire antenna that will give theoretical gain of 3 DBd with broadside
radiation patterns similar to a dipole.   A single band version is described
in the ARRL's "Wire Antenna Classics" (pages 4-3 thru 4-6) and in the ARRL's
"More Wire Antenna Classics Volume 2" (pages 5-1 thru 5-7).  The theory is
addressed in the ARRL's "Antenna Book", 19th Edition (pages 8-35 thru 8-39).

  Personally, I am thinking of trying the single wire, multiband, coax fed
version of the EDZ for 10/15/20 named the EXJAY that is described in the
book "The Antenna File" (pg 15-17) published by the Radio Society of Great
Britain (and sold by the ARRL).  The author had a similar environmental need
and details several other antennas he built before settling in on this
single wire antenna.  It is about 90 feet or so in length and, if you want
the full benefit of its gain, should be mounted horizontally at a height of
30 feet or more.


Regards
Jim Shaw, WA6PXU
WA6PXU@ARRL.net
408-973-1608