Thanks for the reply and lesson in quantum physics (jk, I never thought it was this involved). I should have paid more attention during those lectures in college. So, I guess it's time to borrow from the 401k and invest in an updated pc based remote. Like the range of my MX-600 and have read about the short range of the Logitech models. Anyone have a make/model suggestion that has a good whole house RF range but won't break the bank?