1) Try moving the rf base station as far away from the equiment as possible. Pay attention to the status light on the base station if it's lit up or blinking then keep moving it around.

2) Upgrade to one of URC's more expensive remotes that end in "i" for example MX900i or MX980i. And replace the existing base station with an MRF350i. These remotes run off differnet frequency range than the rest of their remotes (433 instead of 418 MHz). This base station has a seperate antenna (instead of having it built in like the less expensive models) giving you the ability to move away from the rest of equipment.

3) Replace it with a Wi-Fi, iPad, or Android based solution so that you don't have to worry about rf interference anymore.