I've been fooling with dimensions for stacking Hy-Gain 204BAs. In a
two-high stack at 100/50 feet, the F/B really goes to pot compared to
what's easily achievable with one antenna. This is Not Good.
If you've come up with dimensions that make the antenna a better
stacker, particularly with stock element spacings, I'd like to know
about it. I'm particularly interested in dimensions that preserve this
antenna's taper schedule, excellent wind balance, and input impedance
within reason.
All I really care about is the bottom 100 kHz of the band, but I'll
entertain broadband designs too. :-)
A separate problem is the disagreement between antenna modeling programs
on the basics of this system, but that's a subject for the soon-to-be
AntennaWare reflector that KJ7CH is working on.
Thanks.
--73, Rus, NJ2L
nj2l@microwavedata.com
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