It appears likely that the Land Mobile Satellite Services (LMSS) will be authorized by the FCC for operation in the 800 to 900 MHz (UHF) and possibly near 1500 MHz (L-band). Propagation problems are clearly an important factor in the effectiveness of this service, but useful measurements are few, and produced contradictory interpretations. A first order overview of existing measurements is presented with particular attention to the first two NASA balloon to mobile vehicle propagation experiments. Some physical insight into the interpretation of propagation effects in LMSS transmissions is provided.


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    Title :

    Propagation considerations in land mobile satellite transmission


    Contributors:
    Vogel, W. J. (author) / Smith, E. K. (author)

    Publication date :

    1985-01-24


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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