A two-way radio is simply a radio that can both transmit and receive (a transceiver). Portable two-way radios are often called walkie-talkies or handi-talkies. Two-way radios are also available in mobile and base configurations. In computer networking, the term transceiver (sometimes abbreviated to TCVR) is a device that performs, within one chassis, both transmitting and receiving functions that is in a common housing, sometimes designed for portable or mobile use, uses common circuit components for both transmitting and receiving which provides half-duplex operation. ... A walkie-talkie is a portable, bi-directional radio transceiver, first developed for military use. ... Mobile surveillance camera watching over passengers in a taxicab A mobile rig (or automobile rig) is a class of communications system that is midway between a base station (building-mounted) and portable (body mounted). ... A base is: in mathematics: A number that is raised to a power, or base of an exponential function. ...
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