[Antennas] Dipole

[Mark]

Actually, somewhere // ARRL info, I think .. had a way to build a multi-band
dipole using rotator wire .. I built one, using the 4 "waaarrrrss", while on
temporary assignment [GRIN] at my wife's parents' place on Long Island, in
1970 -71 .. I worked for Lafayette radio .. and, on top of the Levittown
dormer, I put that up .. 75, 40, 20, 10 ... all on that flat 4 wire cable ..
actually, it was a pretty poor antenna system, but .. I made QSOs!   15M
used the 40M portion .. sort of .. no `tenna tuner, just my Galaxy V MKII ..
and, I had Qs with folks I did not know, and with the ones I did, on the
West Coast (sometimes) -- but,  I recognized it was a poor antenna, and
never did that again..  But, if I had not had the experience doing that, I
could not have shared it with you!  HIHIHIHI ... 73 -
Mark, AA6DX   --- Eureka, FAR NORTHERN CALIFORNIA -- -----
From: "Chris BONDE" <ve7hcb@rac.ca>
To: "Wes (N7WS) and Linda" <wesandlinda@triconet.org>
Cc: <antennas@mailman.qth.net>
Sent: Friday, January 10, 2003 4:55 PM
Subject: Re: [Antennas] Dipole


> In my ARRL Antenna HdBk (very old1988 and starting to fall apart, like me)
> there is a multiple-dipole antenna described .  It is a construction by
> Louis Richard, ON4UF.  It has 4 dipole (for 7,14,21,2's palce i8mHz)
constructed from
> 300 ohm ribbon (Remember that stuff used for TV?, Hard to find
> now-a-days)  THe feeder is 52 or 75 ohm coax.
>
> The measurements aro  7.1  32ft 8in, 14.1 15ft 1in, 21.2  11ft 3in and
> 28.2  7ft 8in.
>
> I know of a number of hams locally using  4 wires in a parrallel type
> dipole.  Best to have a good tuner.
>
> Chris opr VE7HCB
>
>
> At 11:41 AM 2003-01-09 +0000, Wes (N7WS) and Linda wrote:
> >At 12:20 PM 1/9/2003 -0500, WD8OKN de Michigan wrote:
> > >I am building a multi-band dipole.  It will be cut for 40m, 20m, and
10m.
> > > I've been told to be careful and I've read that you should NOT run the
> > >legs of the dipole parallel with each other.    I've read they need to
be
> > >perpendicular.  However, I've seen many dipoles built this way
> > >(parallel).
> > >
> > >What are the groups thoughts?
> >
> >I don't know about the group, but my thoughts are thus:
> >
> >You can run the wires parallel to each other but you should expect more
> >interaction between them.  In other words, they will be harder to prune
to
> >resonance.  Start with the longest element and work up.
> >
> >The greater the angular separation between them, the lower the
interaction.
> >  At 90 degrees there is in theory no interaction.  But you have three
> >wires, so it's a bit difficult to keep them all at 90 degrees to each
other :)
> >
>