• Direct broadcast saterllites?

    From Brian Gaff@21:1/5 to All on Sat Aug 19 11:48:29 2023
    So these days what method is used to transmit the beams, by that I mean, is
    it some kind of travelling wave tube or is there a semiconductor now that
    can generate the required power, and how long do they expect the vehicle to function?
    Brian

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