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Land Mobile Radio

Regional shared public safety radio across three system generations and two decades — a rare thing to be able to say about infrastructure replaced once a generation.

Also known as LMR, First Coast Radio System, FCRS

Left to right is time. Each row is one of the 6 disciplines this one worked alongside, ordered so kindred disciplines sit next to each other rather than alphabetically — a landscape only means anything if neighboring rows belong together. Height is the work running in that domain in that year, weighted by what failure would have cost — life-safety ×3, a statutory obligation ×2.2, the estate itself ×1.5, an evaluation ×1. Every project declares which of those it was, so each ridge traces to an entry you can open and disagree with. Only the work that used this technology is counted, so what shows here is the company it kept rather than the record around it. Height and color are on the record-wide scale rather than this page’s own, so a modest estate draws a modest landscape and any two of these pages can be read against each other.

Senior enterprise architect and subject-matter expert for the First Coast Radio System, the shared regional public safety network carrying JEA, the municipal utility, together with every public safety agency in the region.

Took it from the original system through retrofit onto newer technology and ultimately a full replacement on the Motorola P25 platform, including master site relocation, backup site and multiprotocol capability, and site expansion.

The work began under contract to JEA while at Coleman Technologies and continued for the following two decades at the city — an unusual thing to be able to say about infrastructure that gets replaced roughly once a generation.

Also searched as

  • LMR
  • land mobile radio
  • P25
  • mission-critical push to talk
  • trunked radio
  • FirstNet