I know K9KNW made a few QSOs with 300w and a halo on 2m from his boat.
I think he likened it to "pulling teeth from an alligator". If you want
a reasonable chance of hearing and working a brick-yagi station, you'll
need a beam, bigger is always better...though not always possible. If
you are looking to go cheap I suggest the WA5VJB "cheap yagi". They are
ugly, but they do work if you hammer on them enough to get the SWR
down. When I was back in 0-land for the UHF contest, KM0T lashed
together an 11-element 432 version in about an hour using an orphaned
broom handle from his garage. Get it up in the clear with good coax and
I imagine you can work many folks with 100w.
BTW, a common misconception about yagi antennas--the length of the yagi
is very important, not so much the number of elements. I remember
seeing a modification for the old cushcraft 10-el yagi that put 8
elements on the same boom and increased the gain a couple dB. Be wary
of old yagi designs that seem to have more elements per boomlength.
That doesn't make them better.
> Ok so here is another question......
> I will read the new primer, and this weekend try and receive some
> signals. But before I can attempt that, what is the minimum antenna I
> might be able to hear something with. I do not have any type of beam
> but I do have a 2m dipole, did someone just snicker. If I was to try
> and make a 2m beam how many elements and how high would it have to
> be. Should I forget the dipole and just make a beam.
> As you can see, I am really starting from scratch with this.
> Thanks again,
> Art W1FJI
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