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Re: [TowerTalk] 40/80m dipole

To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] 40/80m dipole
From: "David J. Sourdis - HK1A" <hk1kxa@hotmail.com>
Reply-to: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Date: Wed, 24 Mar 2010 22:54:22 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Trim the longest dipole first.

David  
HK1A
EC5KXA





> From: ersmar@verizon.net
> To: towertalk@contesting.com
> Date: Wed, 24 Mar 2010 23:42:36 -0400
> Subject: Re: [TowerTalk] 40/80m dipole
> 
> Dan:
> 
>      I concur with Don's recommendation about using two dipoles on the same 
> feedline.  I used this arrangement (with a third dipole for 20M) during my 
> Novice days and it worked well for me.  The non-resonant dipoles aren't even 
> seen by the one your operating on.  Just leave enough wire at the ends of 
> each dipole for trimming.
> 
> 73 de
> Gene Smar  AD3F
> 
> 
> ----- Original Message ----- 
> From: <n8de@thepoint.net>
> To: "Tower and HF antenna construction topics." <towertalk@contesting.com>; 
> "Dan" <n5ar@air-pipe.com>
> Cc: <TowerTalk@contesting.com>
> Sent: Wednesday, March 24, 2010 11:01 PM
> Subject: Re: [TowerTalk] 40/80m dipole
> 
> 
> > Dan,
> > How about two parallel dipoles from the same feedpoint with the 80m
> > dipole strung between the 90' supports and about 20' at each end
> > hanging down. The 40m dipole could then be 'fanned' downward from the
> > feedpoint and tied to the same end support as the 80m dipole.
> >
> > -------------------()-----------------
> > |                                     |
> > |                   ^                 |   this would be the 80m dipole.
> > |                   ^                 |
> > |                   ^                 |
> > x               40m dipole attached   x
> >            at this same feedpoint with
> >       ends drooping down towards points
> >    marked 'x' where both dipoles are tied off.
> >
> > Don
> > N8DE
> >
> >
> > Quoting Dan <n5ar@air-pipe.com>:
> >
> >> I would like to build and send to my son a coil loaded dipole for
> >> 80/40m. He has about 90 feet space to hang it in. Has anyone information
> >> on loading coil values and placement in the 90 ft dipole?
> >>
> >> Tnx, Dan, N5AR
> >> _______________________________________________
> >>
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> >
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