[Antennas] Dipole

[Chris BONDE]

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 7,14,21,28mHz) 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 :)
>
>
>- - -
>
>Your moderator for this list is:
>Larry Wilson KE1HZ antennas-owner@mailman.qth.net
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