MPH

Radio and television transmission systems comprised of transmitters, exciters, antennas, microphones, audio speakers, video monitors, signal mixers, and audio and video signal encoders and decoders; editing equipment, namely, computer programs for editing images, sound, and video, video editing equipment and movie editing projectors; software-defined radio (SDR) transceivers capable of providing two-way communication according to any one of several different cellular telephone communications standards