On Sun, 15 May 2016 15:21:02 -0000, Mel Beckman said: > But a more critical deployment of rubidium clocks is in cash-strapped public > safety institutions, such as local police dispatch centers. Timing is crucial > for the squad car communication systems, which these days are all digital, > based on wireless T1/T3 trunks to remote repeaters. The clocking on these > trunks can't drift much before voice communication fails due to repeater > outages. The telecom gear has OXCO clocks that can provide a few hours > holdover. A rubidium clock onsite provides coverage for longer outages.
That may be the scariest entry on "Things I was not aware of" for quite some time....
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