I beg to differ...
I changed the baluns on my Telrex Monobanders, and a TB5EM to 1:1 Ferrite Choke
Baluns that I built and they are working great with a 1:1 SWR and a max at band
edge of 1.6:1 SWR. They're all down and in stroage right now....moved.
Worked for me, just my experience.
73 from afar,
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.
> 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?
> Bee K4JLD
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