Portable handie-talkie radios, used by car inspectors and car checkers aid in reducing yard time for through freight trains at Cheyenne, Wyo, on Union Pacific; two base station radio transmitters, one for car inspector system and other for car checker system are rated at 30-w RF output, and operate on 115-v a-c; pickup highway type truck with flanged wheels, operated on center track in yard, is used for servicing.
How UP uses radio for car checking and inspecting
Ry Signaling Communications
Railway Signaling and Communications ; 50 , n 2
1957
Aufsatz (Zeitschrift)
Englisch
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