[TowerTalk] HyGain HyTower Questions

[Tim Kass]

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 at earthlink.net
> To: kc4pe at mindspring.com; k3lr at k3lr.com; dan-schaaf at att.net; TowerTalk at 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 at arrl.net
> -----Original Message-----
> From: Bill Winkis [mailto:kc4pe at mindspring.com] 
> Sent: Wednesday, August 05, 2009 3:19 AM
> To: k3lr at k3lr.com; 'Dan Schaaf'; TowerTalk at 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 at bellsouth.net
> 
> ----- Original Message ----- 
> From: "Tim Duffy K3LR" <k3lr at k3lr.com>
> To: "'Dan Schaaf'" <dan-schaaf at att.net>; <TowerTalk at 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 at contesting.com
> > [mailto:towertalk-bounces at contesting.com] On Behalf Of Dan Schaaf
> > Sent: Tuesday, August 04, 2009 7:16 PM
> > To: TowerTalk at 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
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
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> > TowerTalk at contesting.com
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> >
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> >
> >
> >
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> > 
> 
> 
> 
> _______________________________________________
> 
> 
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