Thanks to all who responded, some on the reflector and some direct. I was
mixing up impedance matching with phasing. I was thinking about 1 trip around
the Smith Chart repeating the impedance, but wasn't thinking correctly about
phasing.
And thanks for explaining the benefit of using 1/4 wavelength lines.
73, Rich, N6KT
From: Wes Stewart <wes_n7ws@triconet.org>
To: towertalk@contesting.com
Sent: Thursday, May 3, 2018 7:29 PM
Subject: Re: [TowerTalk] Coax Lengths for Stacked Yagis
Quarter wavelength lines have the magical property that the output current is
equal to the input voltage divided by the line Zo. So with multiple inputs
tied
together, and obviously having the same voltage, the output currents will be
equal.
Wes N7WS
On 5/3/2018 6:09 PM, Richard Smith wrote:
> What is the benefit of making the feedlines odd multiples of a quarter
> wavelength long? I have heard this elsewhere, but have not yet figured out
> the benefit.
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|