I use the 450 ohm window ladderline mostly.
Incidently, a COAX fed 80M dipole will also work well on the
WARC bands since the center is a current maximum, or
nearly so, on 30, 17, and 12M where a dipole tuned to
3.6 MHz represents ~3/2 WL on 30M, almost exactly
5/2 WL on 17M, and almost exactly 7/2 WL on 12M.
Another 80M dipole fed with several hundred feet of
3/4 inch CATV 75 Ohm Hardline presents an SWR
under 3:1 on 30M and under 2:1 on 17 and 12M.
Tom N4KG
On Sat, 6 Jul 2002 "Kim Bottles" <kbottles@rafn.com> writes:
> Tom,
>
> Do you use the 450 ohm window type ladderline or the 600 ohm type
> line for your dipoles?
>
> Kim - K7IM
>
> -----Original Message-----
> From: n4kg@juno.com [mailto:n4kg@juno.com]
> Sent: Saturday, July 06, 2002 12:21 AM
> To: TOWERTALK@contesting.com
> Subject: Re: [Towertalk] double bazooka
>
>
> A *simple* solution to the 100 ft space limited antenna problem is
> to
> just install a 100 ft center fed dipole using Ladder Line feeders
> and an
> Antenna Tuner such as a Johnson Matchbox.
>
> I have 4 Ladderline fed antennas (2 - 80M dipoles, 1 - 100 ft CF, 1
> -
> 20M dipole) which I use extensively on 80M the WARC bands. I have
> worked
> over 320 countries on each of those 4 bands. (OK, the 80M dipoles
> are at
> 130 ft and the 100 ft CF is at 100 ft)
>
> Tom N4KG
>
> On Sat, 06 Jul 2002 "S. Markowski Jr." <km9m-zig@attbi.com> writes:
> >
> >
> > Van K7VS wrote:
> >
> > > with a g5rv, keep your antenna tuner handy as you WILL need it
> > for all
> > > bands. Certainly a compromise antenna but useful in some
> > instances.
> >
> > You "CAN" work alot of DX with a G5RV and 100 watts. You will
> learn
> > one new character trait.....
> > "PATIENCE"!
> > 73,
> > Zig KM9M
> >
> > _______________________________________________
> > Self Supporting Towers, Wireless Weather Stations, see web site:
> > http://www.mscomputer.com
> > Call 888-333-9041 to place your order, mention you saw this ad and
>
> > take an additional 5 percent off
> > any weather station price.
> > _______________________________________________
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> > Towertalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ________________________________________________________________
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> _______________________________________________
> Self Supporting Towers, Wireless Weather Stations, see web site:
> http://www.mscomputer.com
> Call 888-333-9041 to place your order, mention you saw this ad and
> take
> an additional 5 percent off
> any weather station price.
> _______________________________________________
> Towertalk mailing list
> Towertalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
________________________________________________________________
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