The best was dipoles, WITH multi-bead (for least weight) choke baluns
at the centers, arranged end-to-end.
Second place was one horizontal, the other vertical. This was in
second place not so much because of separation, which may have been
better, but that the vertical was a decidedly inferior antenna for
this contest, having no high angle radiation.
On Sun, 12 Mar 2000 19:21:10 -0800, you wrote:
>
>Good question.
>
>You will need crystal or ceramic filters to be able to do this. You
>will be bound to a very small bandwidth to work in but it works. It
>used to be done by some M/M guys. Probably its still being done to hear
>very close to the run station for mults.
>
>Also you might want to try using a vertical for one station and a dipole
>or some other horizontally polarized antennas for the other. This will
>give an addition 30db (ideal) isolation.
>
>I have also seen a very straight dipole aimed at the other in band
>antenna so its null was in the others direction. And it worked but the
>spacing was 300 feet or so to the other array.
>
>Another trick is to have a station listen on a beverage. For 40m its
>not very long and I have set up a 40m station CW with the SSB FD station
>about 400 feet away. It worked very well. Put the beverage out as far
>away from the other antenna as possible. Matter of fact it worked so
>well, the SSB guys wanted their own beverage the next year. They had a
>2 ele beam and we smoked them in QSOs.
>
>Jay
--. .-..
73, Guy
Guy Olinger, K2AV
k2av@contesting.com
Apex, NC, USA
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