[TowerTalk] "BigSticks"

[Bill Tippett]

W0UN wrote:

 >Actually I think optimizing them with modern NEC-based tools is worth
the effort, especially if you really want to achieve the promise of the
dual-driven elements.  While you won't get a lot more gain, what you
can get is more bandwidth, especially for the VSWR and the F/B specs.

         ~0.9 dB gain, ~8 dB F/R and better SWR bandwidth (stock
dimensions vs optimized).  The main reason I optimized mine was
for performance in a stack.  Performance is much different when
two antennas are stacked versus a single antenna.  I kept my
dual-driven elements in exactly their original position but let
YO7 vary everything else.

         Before and after results below:

http://users.vnet.net/btippett/yagi_optimizer_7_0.htm