Hello Bill,
Well, let's see, I had 4 each m2 2.0 wavelength (40 ft. boom) antennas that
were separated about 26 feet horizontally and 30 feet vertically. They worked
great like I said for EME or for terrestrial work if I had a chance to point
the antennas properly. In the sporadic E openings that were fast in and out,
often I simply found that I could not get them aimed before the band closed
(during the summer months you have an MUF that is not quite 50 MHz and a small
meteor burst will give you a reasonable opening in a particular direction for
30 seconds up to maybe 2 minutes. Under those conditions, I find that a stack
of Halo's will actually be a big advantage even over a single yagi.)
On HF, I doubt that anyone could get the equivalent of what I had on six (try
80 ft. horizontally and 95 ft. vertically on 20 meters), so what your friend
said is probably true within normal limits on HF.
Bill Fisher - W4AN wrote:
> On Mon, 19 Oct 1998, Mike Lamb wrote:
> > I once had an H frame for my stack of 4 M2 six meter 40 ft. boom yagis
> > which worked great for EME. For terrestrial work it was really too
> > narrow. To give an idea, if I had a signal 56 above an s0 noise level
> > with the beam peaked, all I had to do was move the rotator 5 degrees and
> > you could not even tell the signal was in there! I missed lots of QSO's
> > because I wasn't aimed properly. Now I have those 4 antennas stacked
> > vertically and the forward lobe is broad enough to be useable.
>
> I was talking to N4AR recently about H-frames (he's a guy that has put
> them up) and his feelings were that you can't be too narrow. Now what's
> he know that that the rest of us who havn't put them up don't? I have not
> heard from ONE person that had up an H-frame that said it was too narrow.
> If you are such a person, I would love to hear your experiences and
> details of the installation.
>
> 73
>
> Bill - W4AN - K4AAA
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