Discovered that my problem wasn't too many segments but (perhaps)
misalignment between them. Thanks to K3NA and K4SB for pointing out this
issue. Going to one segment per foot per N6WG's suggestion produced good
convergence, as did WE9V's lower number but with careful alignment between
segments in the tower and the shunt feed wire. Gain is still in the
neighborhood of -2.5 dBi which is less than others have reported, but
that's life. The interesting part is that this still appears to indicate I
need to go with a tap point well below my bottom yagi in the stack,
contrary to what ON4UN's book says.
Thanks, guys.
73, Pete N4ZR
Contesting is ... Extreme Radio
The World Contest Station Database
is back up and running at
http://www.qsl.net/n4zr
--
FAQ on WWW: http://www.contesting.com/FAQ/antennaware
Submissions: antennaware@contesting.com
Administrative requests: antennaware-REQUEST@contesting.com
Problems: owner-antennaware@contesting.com
|