With the advent of AFO track circuits many problems have been presented but little research has bene done. General Railway Signal Co. will start an extensive project to compile the information needed. At a meeting in New York Gen. Rly. Sign. Co. gave some information concerning the characteristics of various track conditions and how the levels of audio frequency are affected. This article is the paper presented there.


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    Title :

    Wanted: New standards for AFO


    Additional title:

    Gesucht: Neue Normen fuer Tonfrequenzgleisstromkreise


    Contributors:

    Published in:

    Publication date :

    1974


    Size :

    8 Seiten, 12 Bilder


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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