>  RW>           o
>  RW>          /          top view
>  RW>         o------o-------o-------o-------o------o
>  RW>          \    DE
>  RW>           o
>  
> Ah yes, the good old corner reflector... Now if you were to 
> replace the
> dipole elements with a 5/8 J-pole and suitably-sized 
> elements, mount
> them vertically on a boom, (about 6-8 Ft long?), I wonder 
> what ERP you
> would get with about 40 Watts at the antenna, (50W xmtr)?   
> ...Hmmm....
> Not quite Moonbounce, but I'm sure it would put out a VERY 
> respectable
> signal for at least 100 miles over flat terrain.  It would 
> be a very
> interesting experiment!  If you are going to put it in a 
> tower, you
> would probably have to mount it either at the first director 
> ahead of
> the Driven Element or between there and the DE.  Comments?
 
  Someone has come up with this, it's nick-named the J-Beam.
 
  Construct a good copper-pipe-based j-pole antenna, then, with a plastic 
crossbar, attach your 3 directors and one reflector on it, just as a 
conventional yagi beam. Don't have the precise dimensions here, but the 
suggestion was, on the reflector, to space it at 0.20 wavelength back instead 
of 0.15 from the driven 3/4 wave j-pole element. Something about this giving 
it a slightly less signal strength straight ahead, and slightly more broader 
signal width. I moved 3 months ago, and I don't know precisely where this 
article is, but that's what'cha need to consider, a J-Beam.
 
                                                _Ray_   KB0STN
 
  P.S. No, I don't recall the dB gain, either, but it's a bit more than a 
5-element yagi by itself, because of the +/- 3 dB gain of the j-pole.
 
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