Every time we have tried installing 722k receivers we have had issues with the #2UHF remote range. Functions sometimes however most other time range is poor. Have tried using different codes both A&B, Tried moving antenna away from TV & receiver, even tried two splitters one going directly to UHF ant in to splitter in remote location. Would not work at all with splitter in remote location with ant in same. Dish Tech seems to think this is not common however we have not had one that has worked yet.