Hey all, guess I will throw in my experience with the HyTower for whatever its
worth. I got my Hytower off an old elmer but live in a city lot in Cincinnati,
Oh. Verticals never seemed to do well for me in this area, maybe the poor
ground is the biggest issue, anyway, I tried several 1/8 wave ground radials
for each band but still did not work as good as a good all dipole for up to
around 700 miles, also it was noisy. The best thing I did was to feed it as a
vertical dipole...the stinger (which is isolated from the top of the tower) has
a wire running down the middle of the tower section to the base where it is
normally fed. I cut that wire and fed the stinger at that point with one side
of 450 ohm ladder line and the tower section with the other side...ran the
ladder line down about 10 feet, spaced about 2 feet away from the tower then it
jumps to the top of a shed....anyway, it worked best as that configuration in
transmit and receive...of course you need a tuner as well...but found it worked
on all bands pretty well...also tried elevate radials before that...this still
was better...tuned 80 - 10 meters, no stubs.
73, Tim K8WBL
> From: n5xz@earthlink.net
> To: kc4pe@mindspring.com; k3lr@k3lr.com; dan-schaaf@att.net;
> TowerTalk@contesting.com
> Date: Wed, 5 Aug 2009 17:46:54 -0800
> Subject: Re: [TowerTalk] HyGain HyTower Questions
>
> I would like to see that also.
>
> Allen Brier N5XZ / KL5DX
> 1515 Windloch Lane
> Richmond, TX 77406-2533
> 281-342-1882
> 713-705-4801 (Cell)
> n5xz@arrl.net
> -----Original Message-----
> From: Bill Winkis [mailto:kc4pe@mindspring.com]
> Sent: Wednesday, August 05, 2009 3:19 AM
> To: k3lr@k3lr.com; 'Dan Schaaf'; TowerTalk@contesting.com
> Subject: Re: [TowerTalk] HyGain HyTower Questions
>
> WOW ... this is a revelation....!! I've used HyTowers for the past 40 years
> and have never heard of this approach which is timely as I'm ready to strip
> my stock HyTower down to just 40/80 meter operation...
> I'm a little confused at to Tim's explanation......(ie: "Stinger"..??) Has
> any one have a sketch of the final 75/80 meter config using Tim's mods..???
>
> -Bill
> kc4pe@bellsouth.net
>
> ----- Original Message -----
> From: "Tim Duffy K3LR" <k3lr@k3lr.com>
> To: "'Dan Schaaf'" <dan-schaaf@att.net>; <TowerTalk@contesting.com>
> Sent: Tuesday, August 04, 2009 10:33 PM
> Subject: Re: [TowerTalk] HyGain HyTower Questions
>
>
> > Hello Dan!
> >
> > The original HyTower was designed for the "high end" of 80 meters (above
> > 3.9
> > MHz). To use it below 3.9 required the addition of the base inductor.
> >
> > When I decided to build my 80 meter 4 square antennas out of HyTowers
> > (stripped of all side stubs) it required extending the 2" section and
> > several of the smaller diameters of tubing in order to achieve 0 ohms of
> > reactance at 3.510 MHz. The final total height is 75 feet. The large
> > diameter reduction from the 24 ft of tower to the aluminum "stinger"
> > causes
> > the length to be much longer with the HyTower mechanical design than it
> > would be if the elements were made from #14 wire (the entire length).
> >
> > Hybrid fed 4 squares achieve minimum power in the dump load with elements
> > that are self resonant lower in frequency (140 KHz in this case). So the
> > minimum power is 0 watts in the dump load at 3.65 MHz - with the elements
> > tuned for 3.510 MHz.
> >
> > Here is a photo of one of the 80 meter 4 squares using extended HyTowers
> > at
> > K3LR http://www.k3lr.com/Vertical/MVC-750X.jpg
> >
> >
> > 73!
> > Tim K3LR
> >
> > http://www.k3lr.com
> >
> >
> >
> > -----Original Message-----
> > From: towertalk-bounces@contesting.com
> > [mailto:towertalk-bounces@contesting.com] On Behalf Of Dan Schaaf
> > Sent: Tuesday, August 04, 2009 7:16 PM
> > To: TowerTalk@contesting.com
> > Subject: [TowerTalk] HyGain HyTower Questions
> >
> > I am looking to understand how the HyTower can be advertised as a 1/4 wave
> > antenna on 80 meters. The standard 1/4 wave length at 3.6 MHz is
> > approximately 65 feet, yet this antenna is 53 feet tall on 80 meters.
> >
> > Vy 73, Dan K3ZXL
> > http://www.k3zxl.com
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
>
>
> _______________________________________________
>
>
>
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