What is a Video Modulator?
A video modulator is a device that allows a composite video and audio signal (RCA) to be converted to an RF signal. The RF signal is then converted (modulated) into a VHF or UHF frequency from 55.25 MHz to 900 MHz (channel 2 – 100+). This allows video sources such as a DVD or security camera to be passed with a regular cable signal and be viewed by any TV connected to that cable line.