The present paper describes telecommunication plants for tunnels, which can support multiple services in a wide frequency range of VHF and UHF bands.The illustrated systems have a structure employing such techniques as “grading” and signal optical transport, in order to reduce the number of line amplifiers per unit of tunnel length and the amplifier powers.


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    Titel :

    Multiservice Communications Plants for Long Tunnels


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Vehicle Navigation & Instrument Systems ; 1991



    Erscheinungsdatum :

    01.10.1991




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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