LA Metro Using RF Over Fiber Technology for its Public Safety Radios

ViaLite Communications and rebroadcast pioneer Canam Technology Inc. have teamed up to provide radio coverage in the LA Metro. They have used RF over fiber (RFoF) links to carry five bands of VHF/UHF radio signals simultaneously.

Constrained by lack of space in the tunnels, a major challenge was to accomplish this using RFoF in a very small modular form factor. ViaLite’s Green OEM modules, for broadcast, were integrated with leading-edge Canam BDAs in a highly channelized configuration. The resulting system was fully redundant, complete with switching gear for both main and standby modes.

ViaLite customized their Green OEM modules to offer seamless communication of the system’s operational aspects all within the Metro’s Network Management System (NMS) over Ethernet, thus making the entire system a smart system. This gave the LA Metro the ability to remotely change and optimize performance characteristics, receive live system performance monitoring and multiple alarm notification features.

Canam Technology Inc. pioneered rebroadcast technology in 1962, and has since become a leader in rebroadcasting, not only as a designer and manufacturer of AM and FM, VHF, UHF, and 800 MHz rebroadcast systems and AM and FM radiators (tunnel antennas), but as a fully-fledged integrator of rebroadcast radio systems for highway tunnels, in-building, and subway systems.