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Oct 16th, 2009 at 5:52am
Personal choice, I'd go with the Osiris. But from a practical standpoint you have to consider which feedarm you have. If you try to position a TRIA (transmit/receive integrated assembly) on a feedarm that isn't specifically designed to accept it, you'll face potential focal length and angle problems. Even within the OSIRIS family there are differences. I have a "pure" OSIRIS and I have an OSIRIS-TG. Each needs a different feedarm and strut set to mount correctly on my 98cm Prodelin reflector (dish).
If you've got the old 74cm reflector, it may already have an ANUBIS-compatible feedarm. If true, it only makes sense to use the ANUBIS TRIA. But if you've got a round reflector, you may face the same feedarm/strut compatibility problem I did (and they're not cheap).
I recommend you double-check your part numbers though. Because I'm only familiar with the 1w Anubis. The only 2w TRIAs I know of (for North American use) are the two OSIRIS variants mentioned above. Here's a few: 2w pure OSIRIS #1035817-0001 2w OSIRIS-TG #1035818-0002 1w pure OSIRIS #1035007-0001 and -0002. I also have 1w ISIS and TIGRIS numbers, but unfortunately none for the Anubis.
//greg//
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