hr20's are swm and mrv compatible. At least i know the 700's are. Even if it doesnt say swm above tuner 1. You have to put a 2way swm splitter off your line, 1 to tuner 1, 1 to tuner 2. If your doin mrv the DECA will go on sat 1. I do it all the time and works just fine.
Re: DTV LNB and box Box compatability
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