[ARC5] Why an UNUN?

D. Platt jeepp at comcast.net
Wed Oct 24 18:12:38 EDT 2012


On 10/24/2012 6:06 PM, J. Forster wrote:
> Where did the 12 Ohms, resistive, come from? A manual? The value of a
> dummy load? Where?
>
> -John
>
> ===========
>
>
I believe that's about the Z of a short (relative to the given 
frequency) wire antenna.  If you look at the antennas on something like 
the P-51, etc., they are not very long, at all.  I know some mobile ham 
antennas exhibit that sort of Z, too.

Jeep - K3HVG


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