Edited data files collected for various purposes and organized into a rational from such as the collection of a wide range of data for the conveniemce of end-users.
CATV refers to facilities and enterprises that broadcast on wire television.
Generally, it is a system used to transmit a large number of television programs distributed by a net of coaxial cables configured like the branches of a tree.
3. Satellite communications
Radio communications relayed via communications satellites in a stationary orbit approximately 36,000 kilometers above the equator.
4. Administrative rdio cummunicatiors for fire and disaster
Wireless facilities utilized for collection of information and emergency communications, consisting of fixed equipment (outdoor loudspeakers, individual receivers) and mobile equipment portable and transportable equipment).
5. Mobile radio telephone
A telecommunications tool designed to permit communication from a mobile unit such as an automobile to an ordinary subscriber of telephone services.
6. Wire broadcast telephone exchange
Wire radio broadcasting lines that are allowed to be used as local telephone lines in areas where wire radio broadcasting is permitted.