Thursday, April 6, 2023

unwritten rules of public safety radio systems in USA

private ambulances or non fire department operated ambulances usually
operate on EMS channels or on fire department radio channels - they
rarely operate on police radio channels

many rural areas of the USA are served by county ambulances -
typically they operate on their own radio channels

areas with large numbers of fire department operated ambulances
include eastern massachusetts + illinois + maryland + northern
virginia + houston area + ohio + phoenix + ? seattle ? + jacksonville
FL + Miami FL

fire department operated ambulances usually operate on the same radio
systems as their respective fire departments

in addition - many ambulances have 155.34 and 155.28 or 155.40 or
155.175 for ambulance to hospital messages - and also the MED channels
at 463.00 to 463.1875

medical helicopters operate on many different radio channels - maybe
80% operate on business band radio channels

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