[TowerTalk] Shunt Feeding a LARGE tower?

[K1TTT]

Hmmm, that would be interesting... the circumference would be approaching
1/4 wave at the base, could cause some really odd effects.  Size of openings
in braces could come into play also.  Probably one of those things to just
plug it in and try.

If it were a small tower putting a shunt feed in the middle would look like
putting it in a lossy cage... effect may be less on such a large tower with
large holes in the sides, but I would think it still would be worse than
putting it on the outside.


David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net


-----Original Message-----
From: William Powell [mailto:whp at att.net] 
Sent: Friday, January 25, 2013 17:34
To: towertalk at contesting.com
Subject: [TowerTalk] Shunt Feeding a LARGE tower?

Anyone out there ever try to shunt feed a LARGE tower on 160 / 75?

By LARGE I mean a 200' - 250' free-standing 30' face tower covered with 3' -
8' 
dishes and a plethora of fiberglass omni sticks.   


Unfortunately not really practical to model and not really conducive to
cut-and-try.

Shunt feed (gamma / omega) up the middle rather than on the outside?

Thanks in advance,
Bill Powell - WB1GOT
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