RF modulators convert video to RF (radio frequency) so the video can be transmitted to a television via its RF input. DTMB (Digital Terrestrial Multimedia Broadcast) is the digital broadcasting standard used in China for regular terrestrial digital TV and for mobile TV. This standard was previously called DMB-T/H (Digital Multimedia Broadcast-Terrestrial/Handheld). The eYe Grabber DTMB is a software definable, frequency agile modulator that sends live or recorded video streams to multiple HD monitors via inexpensive RF over coaxial cable. With its included software, one can create a powerful signage or test server.