[TowerTalk] Sweet spot locations

[Pat Barthelow]

Hello Geoff,

It's called an Austin Ring transformer, used to isolate the AC mais that 
power the tower lighting circuits from the Antenna RF current.  Done by 
providing a good AC coupling path, and not much capacitance between primary 
and secondary which would shunt RF to ground and the AC mains.
Google "Austin Ring transformer" and you will get a lot of information.

Sincerely, Pat Barthelow     aa6eg at hotmail.com
http://www.jamesburgdish.org
Jamesburg Earth Station  Moon Bounce Team


http://www.cq-vhf.com

>From: K6TFZ at aol.com
>To: towertalk at contesting.com
>Subject: Re: [TowerTalk] Sweet spot locations
>Date: Fri, 3 Aug 2007 15:58:40 EDT
>
>In one of the pictures I noticed a lightning transformer.
>I could not easily find a description via Google of how
>this operates. I would appreciate it if someone would
>point me in the correct direction for an explanation.
>Thank you.  Geoff, K6TFZ
>
>(Now I know why KGO is like a local station down here
>in L.A. during night hours. They can sometimes be
>heard during daylight hours in QRM-free  areas.)