Denny wrote:
Anyway, in shortened, loaded, active amplifier, receiving arrays can
one simply insert a nominal number of electrical degrees of phasing
line as the mathematical model calls for, or is their more to it...
Hoping that Roy, AL, or Walt, or others will chime in here...
Roy has a SIMPFEED program available from eznec.com that
will tell one if what one is trying to do is possible
and then perform the calculations. I tried the early
version on phased verticals on 75m in AZ and it worked
very well. I could throw a coaxial switch and switch the
beaming function toward CA or TX.
Also, using EZNEC to estimate the feedpoint impedances,
one can always use a Smith Chart to solve the feedline
phasing problems the old-fashioned way. (Years ago, while
using Microsmith, I stumbled upon a method of obtaining
a free lossless phase shift.)
--
73, Cecil
http://www.w5dxp.com