摘要:A modern television broadcasting plant provides facilities for the pick-up and broadcast of entertainment, news, and cultural and educational subject matter in both visual and sound. The purpose of such a plant is to provide an adequate and satisfactory audio-visual services, and this requires a flexible and well-coordinated installation. A functional subdivision of equipment and facilities is the following: (a) Studio and control facilities (Video and audio) (b) Field pick-up and relay facilities (video and audio) (c) Visual and aural broadcast transmitter.