[Towertalk] Fw: Shunt fed towers.on 80m maybe 160m

[Kevin Adam]

You Can Find the article at this URL FortWayneRadioClub.org
http://www.fortwayneradioclub.org/antennainfo/
feeding Towers for 80 160 Meters


On Thursday 08 August 2002 04:11 pm, Gavin Taylor GM0GAV wrote:
> Hi Robert,
>
> there was an article in Radcom in the late 80's on shunt feeding
> towers, think it was by G3TKN?
> He was using a P60 with tribander on top, and if my memory serves me
> using it on 40, 80 & 160.
>
> Would be worthwhile getting your hands on it. Good luck with the
> project
>
> 73 Gavin
> GM0GAV
>
> ----- Original Message -----
> From: "Robert Webb" <G0urr@btopenworld.com>
> To: <towertalk@contesting.com>
> Sent: Thursday, August 08, 2002 8:43 AM
> Subject: [Towertalk] Fw: Shunt fed towers.on 80m maybe 160m
>
> > OK Guys, i have read the literature at various sources, from
>
> websites to
> the
>
> > ARRL antenna book ( best buy ) on how to shunt feed a tower. Now it
>
> comes
> to
>
> > doing it, a few things occurr to me.
> > Should the shunt feed run exactly parallel to the tower.?
> > Should the shunt feed be adjacent to a leg or a flat side ?
> > How can i be certain that the tower is actually being used as a
>
> radiator.
>
> > Maybe the shunt feed is acting as a vertical against the tower as a
>
> ground.
>
> > FYI the tower is a Versatower PB60 with a Cushcraft A3S on the top,
>
> a 40m
>
> > loop in a triangle config fed at the top is at the 55ft point, and a
>
> small
>
> > 2/70 vertical is on a side arm at abt 30ft. The sidearm is steel and
>
> is
>
> > electrically connected to the tower. I  intend to attach the Shunt
>
> feed to
>
> > this arm as it is directly above my ground termination conections.
>
> Youre
>
> > thoughts please, Thanks in advance,
> > Robert Webb
> > G0URR
>
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-- 
Kevin Adam
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