A practical operational system for communicating with submarines located at high latitudes, particularly those under the ice cap, is described. A 10-20-km dipole is deployed which utilized tether technology and which operated at 1-3 kHz. A pair of hollow-cathode-based plasma sources, establishing contact between the ends of the tether system and the ambient plasma, allows utilization of the natural dynamo effect of the tether. It is suggested that a 12-satellite constellation in quasi-polar orbit at 500-1000 km altitude could provide coverage for a 4 million sq km area at 75 percent duty cycle.


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    Title :

    VLF space transmitter


    Contributors:

    Conference:

    International Conference on Tethers in Space - Toward Flight ; 1989 ; San Francisco, CA, United States


    Publication date :

    1989-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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