I hope you don’t mind a very basic question about RF remotes. I been using an MX -700 to control all my equipment for an over a year. I have been total satisfied until I got a Motorola 6412 DVR box from Comcast recently. As someone said it requires very accurate pointing and since I try to record almost everything and then use the 30 sec. skip to eliminate commercials it has become a bit of a pain. I gather from reading these forums that RF could eliminate the need to point the remote control. So I was thinking of ordering the MX-850 but then I read about hooking flashers up to another device (Mx-250) by cables. This may be for equipment that is out of sight but I am not sure. All my stuff is about 10 feet away in paint sight so exactly what do I need and how does it work.

The URC remotes (850, 3000) spit out a native RF signal, and you need an MRF-250 or MRF-300 to convert that to ir, which then is kicked out of mouse emmitters attached to your individual components. So ultimatley, the reciever can be hidden away in a gear location somewhere, and just have the mouse emmitters (which have a 6' length on them) run to your gear. hopefully that kind of answers your question.

OK I understand you need an MRF-250 or 300 to convert RF to IR. Loooking at the MRF-250 on Surf Remote site they talk about the IR Blaster function. Is it possible this replaces the emmitters?

The MRF-250 or 300 both have an IR blaster on the front, so if you can place the unit in front of all your components, it can blast IR at them. The emitters are the cleaner solution, particularly with the MRF-300, where you can adjust each emitter's output level.

Mike