Alton and Southern, outer belt switching line in St. Louis-East St Louis switching district, has 2-way talk back speaker system, used in East St Louis Davis yard, and 2-way space radio installation on 15 Diesel electric locomotives, used in yard as well as on transfer runs to connecting lines at points up to 12 air mi away; systems described.


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    Title :

    Communications systems expedite belt line operation


    Additional title:

    Ry Age


    Published in:

    Railway Age ; 126 , n 19


    Publication date :

    1949


    Size :

    4 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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