[Antennas] Vertical

Thu, 20 Nov 2003 13:48:24 -0800

Interesting that the AV-640 will load up on 80 mtrs even though it is
not advertised to do so.  I wonder if anyone else could comment on
their experience of having a 10-40 mtr vert load OK on 80.  I don't
have any luck making a R-7 or R-7000 load on 80.
I am looking at the DX-77 vert and wonder if anyone has any luck
loading it up on 80 mtrs.
All comments are welcome.  And no, I don't have room for a full size
80 mtr dipole.
TIA & 73.

Bob Nielsen wrote:
> 
> On Thu, Nov 20, 2003 at 09:05:59AM -0800, Jim Lindberg wrote:
> > I am wondering if anyone one the list has had any luck using one of the
> > better known verticals such as Butternut, Gap, Cushcraft  ect without
> > radials? I have a tower I can crank up to about 40 feet but no room for
> > radials. I have a autotuner for my ham radio but I also want to use it
> > for SWLING.
> 
> I have a Hy-Gain AV-640 on a 15 ft. mast with no radials.  It is
> quite similar to the Cushcraft R-8, but no traps.  There is no magic
> happening (although it seems to be necessary in ads for Gap, which is
> why I didn't consider their products), but the performance exceeds my
> expectations, with contacts in EU, AS and AF on all bands from 40 to
> 10.  With a tuner, I have made contacts up to 1500 miles on 80 and 160,
> as well.
> 
> Years ago I had a Hy-Gain 14AVQ and wasn't too impressed with it, even
> with elevated radials.
> 
> However, with a 40 foot tower, you would certainly have better
> performance with a yagi or quad.  The tunability of the SteppIR is
> particularly suitable for SWLing, WARC bands, etc.
> 
> 73,
> Bob, N7XY
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> 
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__________________________________________________________________________                       
                                     Alan Zack
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