Mobile Relay Associates (MRA), La Crescenta, California, U.S. - Case Study

New digital trunked technology is helping a California company compete with commercial cellular providers.

When Mobile Relay Associates (MRA) decided to build a new digital specialised mobile radio (SMR) network, management debated several issues on different fronts. MRA wanted to provide customers with a leading-edge communications network that delivered all the features they had been requesting. Company officials weren’t satisfied with the technology options available from manufacturers before new digital trunked technologies were introduced. MRA staff talked to many SMRs about the technologies they used, the services they offered, and the problems they experienced with analogue technologies.

 

MRA operates Logic Trunked Radio (LTR) analogue networks at 450 – 474 MHz in Southern California and at 800 MHz in Colorado. Several concerns kept MRA from moving forward with purchasing a new network until staff learned about NEXEDGE technology. NXDN is the protocol for the common air interface developed jointly by Icom and KENWOOD, which uses FDMA with 12.5- or 6.25-kilohertz-wide channels. KENWOOD markets its NXDN products under the NEXEDGE brand.

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