I think the LNBs are interchangeable between Dish and DTV but you might want to check with a satellite dealer for confirmation. I know the multiswitches are different and not interchangeable so the switching voltages may be different for the two different systems, in which case my initial premise is incorrect and the LNBs are not interchangeable. They are not tuned to a particular set of transponders so if one is labeled as 110 and you point it at 119 it should still work with the 119 sat.
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