A pair of articles gives an interesting look back to the 1955-56 as LA County Fire has just started to shifts from using dedicated phone lines when dispatching units to the "Selective Call Units", made famous by Emergency!, why there were implemented and their results early on.
The articles also discuss the radio systems the dispatch centers located throughout the county were using and expanding.
http://www.fireengineering.com/arti...merica-s-fastest-growing-fire-department.html
http://www.fireengineering.com/arti...e-calling-radio-equipment-for-l-a-county.html
1960's at L.A. http://www.fireengineering.com/arti...ons-for-2-000-square-miles-in-l-a-county.html
You can also read about changes in the 70's
http://www.fireengineering.com/arti...-county-starts-dispatching-consolidation.html
The articles also discuss the radio systems the dispatch centers located throughout the county were using and expanding.
http://www.fireengineering.com/arti...merica-s-fastest-growing-fire-department.html
http://www.fireengineering.com/arti...e-calling-radio-equipment-for-l-a-county.html
1960's at L.A. http://www.fireengineering.com/arti...ons-for-2-000-square-miles-in-l-a-county.html
You can also read about changes in the 70's
http://www.fireengineering.com/arti...-county-starts-dispatching-consolidation.html
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