[VHFcontesting] Fixed antennas and indoor installations
k4gun at comcast.net
k4gun at comcast.net
Fri Jun 27 17:00:48 EDT 2008
That's a good idea. For that matter, since weight isn't an issue, you could use a 2x4 as your boom. Heck, if the house was situated the correct way, you could build it into the cross members of the rafters.
Steve - K4GUN
-------------- Original message --------------
From: N6FD <n6fd at mchsi.com>
> If you are worried about the cost of the fixed yagis, this would seem an
> ideal situation for a rope yagi. There was an article a few years back
> about someone who made a 100 element 2M yagi using welding rod and
> rope. The elements are cut to length and tied onto a couple of ropes
> and then suspended in the desired direction. Since you don't have to
> worry about weather in the attic, this could be done very simply.
>
> A quagi feed would probably work well. I built one out of 1x2 wood and
> 12ga copper wire along with some copper welding rod directors that got
> me through my first few VHF contests. Seemed to work as well as the
> commercial antennas; just didn't last as long out in the weather.
>
> 73, Erich, N6FD DM15dp
>
> Les Rayburn wrote:
> > On the VHF Contesting Reflector, James Duffey, KK6MC posted some interesting
> suggestions for an amateur who wanted to try VHF DXing, but was going to be
> limited to indoor antennas. As you all know, this subject is near and dear to my
> heart. (ha, ha)
> >
> > One suggestion James made was adding fixed long boom Yagi's pointed towards
> major population centers to supplement shorter antennas that would be mounted on
> rotors. This fits my own situation to a tee. While I've nearly maxed out the
> length of antennas that can fit on my rotor stack in the largest void, I have
> several other pockets in the attic that could support higher gain antennas in
> fixed directions.
> >
> > For this to work, I'd need to work out some sort of switching arrangement,
> which introduces loss on all the antennas connected...so have to think about
> that a bit.
> >
> > The real issue for me would be deciding where to point the antennas. Contest
> scores are not my main goal, working new grids especially on 2 Meters and 432
> would be. My first thought would be generally Northeast and Southeast, since
> there are quite a few guys active in North Carolina, and also in Florida. To the
> west doesn't help me much unless an opening gets into Texas...East should be
> good with Atlanta in the beamwidth, but there just doesn't seem to be a lot of
> activity in that direction.
> >
> > Any suggestions on how to make this choice?
> >
> > 73,
> >
> > Les Rayburn, N1LF
> > EM63nf
> >
> >
> > Les Rayburn, director
> > High Noon Film
> > 100 Centerview Drive Suite 111
> > Birmingham, AL 35216-3748
> > 205.824.8930
> > 205.824.8960 fax
> > 205.253.4867 cell
> > _______________________________________________
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> > VHFcontesting at contesting.com
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> >
> >
>
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