On 2008-09-29, Howard Kowall wrote:
Hello All
Well after all the comments made and doing some research on the G5RV( I
guess it has it place) I have decide to try something new and hopefully
better.Here it is, the Mystery Antenna,I had all the parts at home, so it
I built a Mystery Antenna a few years ago just to see how it performed.
Since then, John has changed his explanation a bit, but it is supposed to
have a better pattern for its designed frequency, ala 20m, than the g5rv. Of
course you can design it for whatever frequency you wish. I use mine for an
all band portable antenna and it seems to work well.
I ended the parallel line in a pl-259. To that I attach, with a barrel
connector, a ferrite bead balun (W2DU style) and then the coax to the tuner
to prevent any common mode from coming back down the line. We use it at ham
field day each year for the GOTA area.
I will not claim any particular advantage over, say, a dipole fed with
ladder line to a tuner and will not quote reports, which are at best nebulus
anyway, but it was fun to build and does work fine.
Incidentally, the cw operator at field day put together the D3 (the 1.5
wavelength ant) on John's W5GI site, tuned for the 40m cw freqs and it
worked very well. Of course that requires a bit more real estate.
73 ...Edwin, KD5ZLB
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