[TowerTalk] Need help ref. spacing elements, 2 el 20 m wire beam
Rick Stealey
rstealey at hotmail.com
Fri Oct 9 17:02:16 PDT 2009
Steve,
It looks to me like this will give you 10.5 dbi gain, 14 db f/b at an angle above the horizon of 30 degrees. Using #12 wire.
reflector length - 10.6 meter
driven ele length - 10.0 m
spacing 3.5 meter
F/b is best at 14.2. If you want to work at 14.05 make the reflector 10.7
Gain is flat across the band.
But if you want more gain, with no f/b consider a lazy H.
Rick k2XT
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