On Sat, 7 Feb 2004 12:45:29 -0500, "Hammer"
wrote:
Hi,
Putting up a 10 through 160 or 10 through 80 meters dipole. I have lots of
wire and coax and a 1:1 balon. Interested in how the shape or form of this
dipole should be to work properly? I have to put it into two trees to get
height. Are there any good links or sights to learn proper making and
installation?
Thanks.
To keep things simple and multi-band I would suggest you try to feed
your dipole with open wire feeder and use a balanced tuner. You won't
need that balun. I have been doing that with a dipole cut for 80m and
it tunes well on ALL bands (even 160, but is not that great on that
band!) and works effectively for me. Of course you will get different
radiation patterns on each band - but it works and if you have a good
tuner it can be a very efficient antenna for QRP.
I have tried using multi-leg dipoles, G5RV's and trapped dipoles for
different bands but they are harder to set-up and simply did not work
as well for me. I believe your easiest multi-band option is what I
mentioned above.
You can even make your own open-wire feeders for next to nothing and
have a much longer, less lossy feedline than you would get with RG8
coax, especially on 10metres. Get the dipole up as high as possible.
It really is very simple and effective.
Larry Gagnon VE7EA
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