At 10:19 PM 7/29/2003 -0700, Chris BONDE wrote:
>Date sent: Tue, 29 Jul 2003 10:40:01 -0400
>From: David Jordan <wa3gin@erols.com>
>To: k1ttt@arrl.net
>Subject: Re: [TowerTalk] Balanced Line using Coax ?
>Copies to: towertalk@contesting.com
>
> > Hi Boys,
> >
> > Anyone of you actually used coax in this configuration? I have. Fed a
> > 40m loop, tri-band Quad, mono-band beam and 160m dipole.
> >
> > The loops were fed with the shields tied together at the antenna but not
> > connected. At the tuner side the shields were tied together and
> > connected to ground.
>
>What is really meant by, '.. tied together ... but not connected... '?
>
>Also, if you twin lead is, say 600 ohm 6in apart do the centres of the
>coax have to
>be 6 inches apart ?
Once the signal is "inside" the coax, it matters not how far apart they
are. The impedances are determined by the coax. However, from a spurious
currents carried on the outside of the shield standpoint, keeping the coax
close together is a "good thing".
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