TUNNEL RADIO OF AMERICA
Communication data and wireless systems for confined spaces, namely, mines, railroads and mass transit tunnels, as well as commercial and industrial applications, comprised of base interface units to connect to base radios, network amplifiers, in-tunnel cabling and antennas; distributed antenna systems designed to extend two-way wireless data and voice signals in zones normally shielded from coverage by conventional wireless systems, comprised of interface units to connect to base radios, net...
Registered · November 16, 2017 · 87687353 ·