[Amps] crossmodulation in PA

[jeremy-ca]

I didnt lose the pot but had to bypass the indicator lines in mine. It was 
at a past QTH, the 100' tower was shunt fed on 160 and a Christmas Tree of 
W2PV-4's were on top for loading. When I replaced the T2X with a Create 
RC5-3A I did the bypassing before installing.

Carl
KM1H


----- Original Message ----- 
From: "Peter Chadwick" <g3rzp at g3rzp.wanadoo.co.uk>
To: "Robert Chudek" <k0rc at pclink.com>; <amps at contesting.com>
Sent: Friday, September 07, 2007 12:20 PM
Subject: Re: [Amps] crossmodulation in PA


>I had the direction indicator pot in the T2X burn up with RF  when using 
>the tower as a vertical. The RF current  through the rotator to the 
>capacity hat of the 205BA appeared to cause the problem: adding suitable 
>straps between the top of the tower and the stub mast, as well bypass  caps 
>in the T2X,  led to no recurrence in 20 years.
> But this purely anecdotal, of course. I believe it's backed by theory - 
> others may disagree.
>
> 73
> Peter G3RZP
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>