[TowerTalk] Yagi Balun

Bob Maser bmaser at tampabay.rr.com
Fri Jul 18 22:08:45 EDT 2008

I do believe that the Telrex monoband yagis employed the use of a T match in 
the driven element.  The impedance of a T match is not 50 ohms but 400 to 
600 ohms.  You would probably need a 9:1 Balun.  A 1:1 Balun will not work.

Bob W6TR
----- Original Message ----- 
From: "Bee Walton" <k4jld at juno.com>
To: <towertalk at contesting.com>
Sent: Friday, July 18, 2008 6:24 PM
Subject: [TowerTalk] Yagi Balun

> Three 29 year old TELREX MONOBAND yagi's are off the towers and on the
> ground for maintenance and repairs.  The factory made and installed coax
> baluns will be replaced.  If the baluns are replaced with a ferrite-bead
> type 1:1 balun such as the Force-12 brand, will the antenna pattern or
> other factors be changed?
> Thanks.
> Bee K4JLD
> k4jld at juno.com
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