On 12/22/2010 7:32 PM, David wrote:
> I want to run 20 feet of RG213 from the tuner to the top of a 10 foot
> section of tower and then to an unun with the output of the unun to a 15 foot
> vertical mounted to the top of the tower. Should I use a 1 to 1 or a 4 to 1
> unun?
This depends on several factors. First, what is the impedance at the
feedpoint of that vertical? What is the frequency? How long is the
feedline back to the shack? How much power?
73, Jim K9YC
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