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Problems Installing Chaparral Superfeed Single Polarity Feed Horn
I just purchased a Chaparral Single polarity C-band Feedhorn, (SuperFEED) and am a bit confused how to fine tune polarity with this feedhorn. We only require horizontal polarity on our fixed prime focus dish, however, I was under the impression that the throat would be rotatable much like other Chaparral feed horns I have used. The picture and description on chaparral's website did not indicate it was a single welded piece. This makes it nearly impossible to reposition the LNB one or two degrees in either direction. The only way to adjust is to use the different screw holes to re-position the entire feedhorn - which would change everything by 15 to 20 degrees.
I'm installing a Norsat 3000 series c-band LNB and would appreciate any suggestions on how fine tuning polarity can be accomplished using this feedhorn.
Or.... did I buy the wrong Feedhorn for this dish?
Thanks in advance.
01-05-2011 04:37 PM