Nyrius NRFM100 Universal Channel RF Signal Modulator Audio/Video Converter with UHF/CATV Mode for satellite/cable TV set-top-box, DVD, surveillance camera Broadcast any audio/video device on multiple TVs Set to any available UHF channels 14-69 or CATV channels 64-94 & 100-125 Ability to use higher channels to avoid interfering with your favorite channels Watch movie channel on any TV in your home, broadcast big game or music channel to multiple TVs at your bar or club, view quad screen on your CCTV camera DVR system at your business Converts RCA composite audio/video input connection into a coaxial output