Ok so had a 522 for a few years. Used it in single mode and usually just used the UHF remote 2. worked fine. NOw have a 622, doing the same thing, just single mode and using the UHF remote #2. The range of the new remote seems a lot less than the 522' UHF remote was. I set the addresses to test both and the 522 worked better than the 622's did. Set them back to different addresses and the 622's remote still doesn't work very far. Does anyone know if they changed something? Or anything I could do to make it work better. the 622 is brand new, i used the batteries that came with it, then i opened a brand new pack just to make sure it wasn't something silly like that. Thanks