The United States Lines 15,690-ton commercial-container ship, American Alliance, was selected as lead ship for an onboard EMI survey prior to installation of L-Band shipboard terminals for operation with two, geostationary, maritime satellites. In general, the EMI survey revealed tolerable interference levels onboard ship: radiometer measurements indicate antenna-noise temperatures less than 70 K, at elevation angles of 5 deg and greater, at 1559 MHz, at the output terminals of the 1.2-m-diameter, parabolic-dish antenna for the L-Band shipboard terminal. Other EMI measurements include field intensity from 3 cm- and 10 cm-wavelength pulse radars, and conducted-emission tests of primary power lines to both onboard radars.


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    Title :

    EMI survey for maritime satellite, L-band, shipboard terminal


    Contributors:

    Conference:

    Electromagnetic Compatibility EMC Symp. and Exhibition ; 1975 ; Montreux, Switzerland


    Publication date :

    1974-12-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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