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[TowerTalk] 40M rotary dipole and CM current

To: towertalk@contesting.com <towertalk@contesting.com>
Subject: [TowerTalk] 40M rotary dipole and CM current
From: Drew Vonada-Smith <drew@whisperingwoods.org>
Date: Thu, 21 Sep 2017 17:03:40 -0500
List-post: <mailto:towertalk@contesting.com>
Doug,

First of all, that isn’t quite true.  Common mode rejection of an receiver RF 
input is not perfect.  But it is almost true, so let's call that part good.

But, these common mode currents on the shield travel and radiate.  Therefore, 
they get to your antenna, and THEN they ARE on the center conductor.  You hear 
them.

73,
Drew K3PA



-----Original Message-----


Message: 1
Date: Thu, 21 Sep 2017 11:06:58 -0700
From: "Doug Ronald" <doug@dougronald.com>
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] 40M rotary dipole
Message-ID: <005301d33304$6b0b6130$41222390$@dougronald.com>
Content-Type: text/plain;       charset="us-ascii"

The RF current your receiver responds to flows on the inside of the outer 
shield of the coax transmission line, so what difference does it make what 
currents may be flowing on the outside of the shield?

Doug
W6DSR 
************************************

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