[Antennas] 80m beams...

Fri, 25 Jan 2002 16:34:36 -0500

90 degree is fine. If aligned N-S then 90 degree gives E-W.

Bob Wilder wrote:
> 
> At 09:20 AM 01/25/2002 -0600, Sandy and Kees Talen wrote:
> >Another question........
> >
> >Has anyone ever looked into using two old (non WARC
> >band ...because they are cheaper) verticals and making
> >a 40m/80m beam out of them ? Maybe some sort of 90
> >degree rotation device (pulleys, screwdriver motor, etc)
> >at the center to pivot the thing for raising/lowering. And,
> >of course support wires from an extension out the top to
> >reduce sagging.
> >
> >73s  Kees K5BCQ
> 
> Couple of comments... It should work as a rotatable dipole
> the same way "Hamstick" puts two of there mobile whips
> together as a dipole.  I would suggest something like the old
> inclosed "Hustler" which has a small profile and would be
> usable as rotating dipole on 80,40,20,15,10.  The other comment
> would be that you need to be able to rotate it 180 degrees, not 90
> degrees if 360 degree coverage is needed.  The secret of such
> a devise would be to have the mast go above the dipole some
> 6-7 feet and use non-conductive material to support the tips
> from drooping.
> 
> 73
> Bob Wilder, AF2HD / AFA2HD(USAF MARS)
> TSgt, USAF (Retired)
> 6032 Idlemoore Court
> Theodore, Alabama 36582-4036
> (251)653-5274
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