[TowerTalk] Shunt Feeding a Vertical

[VE6WZ_Steve]

Scott…
I am guessing you have some Yagis on top of that tower.
Like you there are many towers shorter than 1/4 WL long (including mine!) that are shunt-fed.
Its the electrical length that matters. Top loading works.

It seems you didn't watch my video, since I actually show two images from ON4UNs book referring to calculating electrical length.
So…yeh…I’ve seen his book.



> On Sep 5, 2019, at 6:27 PM, K9MA <k9ma at sdellington.us> wrote:
> 
> I must disagree. I’ve been shunt feeding a 21 meter tower on 160 for years, with a simple gamma match. At most, it is electrically 3/16 wavelength. 
> 
> See ON4UN’s book. 
> 
> 73,
> Scott K9MA 
> 
> ----------
> 
> Scott Ellington. K9MA
> 
> --- via iPhone
> 
>> On Sep 5, 2019, at 5:40 PM, VE6WZ_Steve <ve6wz at shaw.ca> wrote:
>> 
>> Your tower is too short for a shunt-feed.  It needs to be inductive at the QRG of interest, 90 degrees or more (1/4 WL).
>