[amsat-bb] Re: antenna opinion?
rnutter at networkref.com
Thu Apr 3 16:57:59 PST 2008
I use a 5 element on 2 meters and 9 element on 440. I have mine
permanently parked at 25 degrees because of some ground clutter I have
to clear. I have the 2 meter set for horizontal polarization and 440
set for vertical polarization. I would suggest preamps for both bands.
W0DXZ at aol.com wrote:
> I am going to put up a simple satellite antenna system. Simple means, that I
> won't be able to control the polarization, I am going to use linear 144-432
> beams. I will be able to rotate AZ of course, AND elevation.
> Question is,,, how big of beams (how much gain) do I need for each band. I
> don't want the pattern to be so tight I am constantly changing the rotor,,,
> would something like 8 ele on 2 and 16 el on 432 do the job? I can use a
> pre-amp on receive (separate coax lines) Any recommendations for antennas? I
> just don't want to go through polarization switching.
> And,,, would it be any benefit to turn the beams somewhere between
> horizontal and vertical,,, at a 45 degree angle, for polarization? Or is that a waste
> of time, or would it make things worse.
> Bob W0DXZ DM-33 AZ
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