Yes,
Works very well for feeding towers, the best I know of. I'm putting up a 70'er
with stacked beams and plan to use this shunt feed system for 80m and 160m....
Dennis, k0eoo
---- RICHARD SOLOMON <w1ksz@q.com> wrote:
> Sounds like the Monopole design. I had one up for 40 years ago.
>
> 73, Dick, W1KSZ
>
>
>
> > Date: Wed, 24 Sep 2008 07:23:11 -0700> From: radioart@charter.net> To:
> > jruing@ameritech.net; donovanf@starpower.net; donhall161@sbcglobal.net> CC:
> > TowerTalk@contesting.com> Subject: Re: [TowerTalk] (no subject) Vertical
> > Antenna Instead ofTower Decision....> > A new technique for feeding towers
> > has been adopted for Amateur use from the broadcast industry. You drop 3
> > heavy gauge wires connected at the top of the tower to within a few feet of
> > the bottom. Connect the three wires together with a wire ring around the
> > base of the tower and feed that ring, connected to the three wires, with a
> > simple L-Network with respect to your radial system.> > Very effecient
> > system. Several local DXers us it on 160m and 80m with great results. One
> > tower is 140' and the other I know is about 90' with a lot of top loading
> > from various beams....> > You can Google this type of tower feed and get
> > more information....> > Dennis, k0eoo> > > ---- Don Hall
> > <donhall161@sbcglobal.net> wrote: > > Use you
r
> tower with gamma or omega matches on 80/160. Works best with a > >
> self-supporting one, but lots of operators use insulated guys.> > > > I made
> my 160 DXCC with an LM354 loaded that way on an 80x120 lot in the > > middle
> of town.> > > > Can be done.> > > > 73 Don K5AQ> > ----- Original Message
> ----- > > From: "Richards" <jruing@ameritech.net>> > To:
> <donovanf@starpower.net>> > Cc: <TowerTalk@contesting.com>> > Sent: Tuesday,
> September 23, 2008 4:03 PM> > Subject: Re: [TowerTalk] (no subject) Vertical
> Antenna Instead ofTower > > Decision....> > > > > > > Hi Frank --> > >> > >
> Thanks for the strong reply to my questions. Based on your comments, I> > >
> would be better off making higher, longer, and better wire antennas and> > >
> working towards a beam on a tower, instead of looking for a vertical> > >
> compromise today.> > >> > > The six month tower estimate is my own estimate
> based on several> > > factors, including the time it takes to 1) research and
> plan the tower,> > > 2)
or
> der it and have it arrive - many companies are several months out> > > on
> delivery dates, 3) the time it takes to get the local tower expert > > >
> over> > > to put it up -- regardless of how much money I MIGHT save, I plan
> to> > > hire it done by a licensed, bonded, insured, experienced and
> collectible> > > professional I can sue when it falls over. (I am a retired
> trial> > > lawyer...I> > > KNOW the liabilities and risks.. ), and 4) it
> takes time to get the> > > antenna> > > delivered, assembled, and ready for
> installation. Moreover, it is nearly> > > October and we will soon be in the
> Michigan rainy season, and then> > > snow flies starting in November for the
> next 5 months, and the reliable> > > good tower guys do not install in
> winter.> > >> > > Thus,... I figure I could realistically get my tower up
> starting next May> > > as I cannot get it all arranged before November. This
> makes it a> > > winter project that can go up early spring if I get on it
> starting now.> > >>
>
> > THE REAL DILEMMA> > >> > > My real problem is that I want to work the
> lower bands and do not have> > > much space for long wires. I can put up a
> tower and a modest beam...> > > but that will realistically only get me out
> on 20 Meter and higher. I > > > will> > > still be stuck for anything on the
> low bands... which is why the HyTower> > > and the mono pole vertical (which
> can both be tuned down to 160 and 80> > > meters) were so appealing on
> paper.> > >> > > Thanks for any other suggestions you might have.> > >> > >
> ================ JH Richards - K8JHR =================> > >> > >> > >> > >> >
> >> > > donovanf@starpower.net wrote:> > >> > >> 1. Retain your existing
> antennas until you install something more > > >> permanent.> > >> > Compared
> to your existing antennas, you'll be disappointed in the> > > performance of
> any of the alternatives you listed on 20 thru 10 meters.> > >> > >> 2.
> Accelerate your tower installation.> > >> Its not obvious why a tower
> installation must
ta
> ke 6 months.> > >> > >
> =======================================================> > >
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