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LNB

LNB

百科解釋

　LNB又叫高頻頭（Low Noise Block）即低噪聲下變頻器，其功能是將由饋源傳送的衛(wèi)星信號經(jīng)過放大和下變頻，把Ku或C波段信號變成L波段，經(jīng)同軸電纜傳送給衛(wèi)星接收機(jī)。

通信詞典解釋