a specialist Professional Mobile Radio and two-way transceiver

NOTE 1 to entry Formerly known as Trans European Trunked RAdio.

NOTE 2 to entry It uses Time Division Multiple Access (TDMA) with four user channels on one radio carrier and 25 kHz spacing between carriers. Both point-to-point and point-tomultipoint transfer can be used. Digital data transmission is also included in the standard though at a low data rate.