[Boatanchors] Beam elements

D C *Mac* Macdonald k2gkk at hotmail.com
Tue May 12 21:52:18 EDT 2009


Your 40M add-on kit will ONLY work with
your Explorer beam.  It needs the 10, 15,

and 20 meter traps to make it complete.
 
Mac


________________________________
> From: rayfrijr at msn.com
> To: k2gkk at hotmail.com; boatanchors at mailman.qth.net; flboatanchors at yahoogroups.com; glowbugs at piobaire.mines.uidaho.edu
> Subject: RE: [Boatanchors] Beam elements
> Date: Tue, 12 May 2009 19:37:45 -0600
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> The traps I have are from the old Hygain Explorer 14 tribander.
>
> The tribander itself is fantastic. I have a 1.5 to 1 SWR across all three bands.
>
> I bought it from a guy near me who let it go for 40 dollars..
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> I have it up in the air about 30 feet and it has worked great for quite a few years now ...
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> Ray
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> > From: k2gkk at hotmail.com
> > To: rayfrijr at msn.com; boatanchors at mailman.qth.net; flboatanchors at yahoogroups.com; glowbugs at piobaire.mines.uidaho.edu
> > Subject: RE: [Boatanchors] Beam elements
> > Date: Tue, 12 May 2009 20:33:55 -0500
> >
> >
> > Hy-Gain used to market a rotatable dipole for
> > 40/30 meters. It was basically full half
> > wave for 30 meters and used linear loading
> > to "lengthen" it for 40 meters. I had one
> > of these set on 30 meters 10 feet above my
> > Mosley PRO-67 beam. It worked fine, but the
> > whole deal, tower and all, went away along
> > with the house when Mister Twister came
> > calling on 3 May 99!
> >
> > 73 - Mac, K2GKK/5
> > Oklahoma City, OK
> >
> >
> >
> >
> >
> > * In my many years, I have come to the conclusion that one useless *
> > * man is a shame, two is a law firm and three or more is Congress. *
> >
> > * -- John Adams (1735- 1826) *
> >
> >
> >
> >
> > ________________________________
> > > From: rayfrijr at msn.com
> > > To: k2gkk at hotmail.com; boatanchors at mailman.qth.net; flboatanchors at yahoogroups.com; glowbugs at piobaire.mines.uidaho.edu
> > > Subject: RE: [Boatanchors] Beam elements
> > > Date: Tue, 12 May 2009 19:06:33 -0600
> > >
> > > Thanks.
> > >
> > > I am toying with a idea. I have the traps that were made to add 40 meters to the driven element of my triband beam.
> > >
> > > I never put the on because I thought it would be too unwieldly for my location, and I didnt want to add the extra guying that is usually added to the driven element.
> > >
> > > I was looking at them the other day and thought using them to construct a rotatable dipole for 40 meters might be worth experimenting with. That's why I wondered what the electrical wavelength of a triband beam element usually is.
> > >
> > > I was thinking that since the next band down from 20 meters, as far as the driven element of a tribander is concerned, is 15 meters, that if I made a 20 meter half wave antenna out of tubing or wire, and used these traps that maybe I could get the homebrew antenna to resonate on 40 meters, as it would do if I put them on the driven element of the tribander like they would do if I added them to the beam.
> > >
> > > If so, I could manage such a rotatable dipole, where it would be too unwieldly to add them to my tribander.
> > >
> > > What do you antenna experts here think?
> > >
> > > Ray WA7ITZ
> > >
> > >
> > >
> > >> From: k2gkk at hotmail.com
> > >> To: rayfrijr at msn.com; boatanchors at mailman.qth.net; flboatanchors at yahoogroups.com; glowbugs at piobaire.mines.uidaho.edu
> > >> Date: Tue, 12 May 2009 19:50:11 -0500
> > >> Subject: Re: [Boatanchors] Beam elements
> > >>
> > >>
> > >> Half wave, but shortened a bit by the coils in the traps.
> > >>
> > >>
> > >>
> > >> 73 - Mac, K2GKK/5
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>> From: rayfrijr at msn.com
> > >>> To: boatanchors at mailman.qth.net; flboatanchors at yahoogroups.com; glowbugs at piobaire.mines.uidaho.edu
> > >>> Date: Tue, 12 May 2009 18:48:43 -0600
> > >>> Subject: [Boatanchors] Beam elements
> > >>>
> > >>>
> > >>>
> > >>>
> > >>> I'm wondering if someone here can answer a question for me?
> > >>>
> > >>>
> > >>>
> > >>> Tri-band beams ... are the elements usually electrically a quarter wave, half wave, or full wavelengths with the coils?
> > >>>
> > >>>
> > >>>
> > >>> Ray WA7ITZ
> > >>> ______________________________________________________________
> > >>> Boatanchors mailing list
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> > >>>
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> > >>
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