[Antennas] anyone have experience with the HyGain DIS-71?

[fkamp at comcast.net]

> 
> Richard Brunner wrote:
> 
> > Re:
> >
> >> I really need to improve my 40/30 meter antenna.
> >> Has anyone had experience with this antenna.
> >
> >
> > Question: Improve compared to what?   If you already have a nice high
> > tower, you can hang innumerable dipoles from it,  at negligible expense,
> > which will work as well as the rotatable dipole.  If you have several
> > supports there are several wire-beam possibilities.
> >

Doug Renwick wrote:
> 
> "which will work as well as the rotatable dipole"  False!
> 
> Fact - a rotatable dipole for many bands on a 'high' tower
> will work better overall than a fixed position dipole.
> 
> Doug/VA5DX

A rotatable dipole is much prefered, but not because it rotates.

Most rotatable dipoles are REAL dipoles.  They are flat-topped and
installed at the proper height.

Wire dipoles strung from a single tall support end up as inverted vees.

Nothing wrong with inverted vees, but they tend to be omnidirectional,
vertically polarized, have high take-off angles, and unity or less gain.
Such cloud burners are fine for local work.  I have used one on 75
meters for years.

While there is no rule excluding inverted vees from being able to work
DX, you stand a better chance with a rotatable dipole.

However, if you are realy serious about DX work, you would be using the
beam at the top of the tower.

Regards,
Frank Kamp
K5DKZ