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Re: Topband: Static build-up on non-grounded antennas

To: topband@contesting.com
Subject: Re: Topband: Static build-up on non-grounded antennas
From: "Bill Tippett" <btippett@alum.mit.edu>
Date: Sun, 23 Nov 2008 06:49:40 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
SM3BDZ:

> Regarding Carl's, SM6CPY, question and responses to that.
> Sure would an RF-choke or a resistor serve to discharge the antenna and keep 
> its potential at ground level. But on the other hand, if you are using an 
> amplifier (which most of us are) it should present a DC short to the antenna 
> thru the coax, as tube amplifiers already have an RF-choke across it's 
> output. Transistor amps usually have a lo Z output for DC, so that would be 
> the same. So, the remaining question is: Why does'nt that help?


"OZ1AXG Flam" <oz1axg.nospam@dxmail.dk>:

Because the amplifier is bypassed when you are receving.
I put a 2 MOhm carbon-type resistor to ground on the 3/8, just in case.

OZ1AXG Flam
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