[TowerTalk] antenna quiz?

Larry Phipps larry at telepostinc.com
Tue Dec 13 11:17:29 EST 2005


No, as long as the balun is properly designed. 25 ohms is a pretty 
typical value for yagi feedpoints. Most manufactureres supply a matching 
device to 50 ohms, but the  actual feedpoint is probably in the 25 ohm 
range.

Larry N8LP



30KR239 Fernando wrote:

>Hello,
>I´m in the process of buying a new antenna, an Optibeam OB10-3W. I´ve been told that this antenna presents an impedance of 25 Ohms at the feedpoint that´s what I would need to use the 5 Kw (2:1) balun from Array Solutions. My questions are....isn´t it a too low impedance?...would it affects the antenna´s performance on any way?...Thanks in advance. 73s!
>EC1CT Fernando
>E-mail: ec1cwg at dxhunters.com
>URE & ARRL member
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