[TowerTalk] tri banders vs mono banders

[Pete Smith]

At 09:45 AM 7/20/00 -0400, Jim Idelson wrote>

Hi Jim -- I've seen Jay's answer and I largely concur.  However, phasing
between your tribander and the selected monobander below it can be tricky.
I recall a message on towertalk earlier this year from a guy who was
running a tribander with a monoband yagi, and he had to put in phase delay
(in the form of extra feedline) to make it work.  I think the tribander was
a Force 12 C-3 ... but you could probably find it in the archive.

My impression is that considerations of this sort are what make phasing
dissimilar yagis such an iffy deal.  However, if you can accurately model
both antennas I don't see why you couldn't just cut and try the phasing of
the 2 feedpoints until you found the right delay to give you the desired
pattern.



73, Pete Smith N4ZR

The World Contest Station Database 
is back up and running at
http://www.qsl.net/n4zr 



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