Submitted by Roger C. Bodtke
(OMA), Nebraska, late 1950's
Service "A" and Service "B" Switching Units
All information came through this equipment via one circuit per teletype
printer or transmit/receive unit. Service "A" circuits carried all
weather to be printed and the Service "B" circuits carried all
aircraft movement messages. The Nebraska Department of Aeronautics
had a circuit for 15 weather reporting stations. Offutt Air Force
Base had a dedicated circuit to OMA FSS. These units were usually
located in the same room as the teletypes.
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