article
16 February 2017 | By David Chater-Lea
TETRA (Terrestrial Trunked Radio) has been used for many years for communications in metro and tramway systems, and outside Europe is also being used in safety critical positive train control systems. In this article, David Chater-Lea, ETSI’s TCCE Vice-Chairman, describes the use of TETRA in railway applications, and looks to…