寬頻

Multi tool use
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頻寬。
寬頻(英语:Broadband)在基本電子和電子通訊上,是描述電子線路能夠同時處理較寬的頻率範圍。寬頻是一種相對的描述方式,頻帶的範圍愈大,也就是頻寬愈高時,能夠傳送的資料也相對增加。譬如說在無線電通訊上,頻率範圍比較窄的訊只能傳送摩爾斯電碼,傳送高品質的音樂就需要較大的頻寬。電視天線的寬頻代表能夠接收數量較多的頻道。在資料傳送方面,同樣是以電話線作為訊號傳遞的介質,目前光纖電纜則愈來愈普及,调制解调器只能夠每秒鐘傳送64Kbps的資料,寬頻的ADSL和光纖Modem能夠提供更高的傳送速率。
标准
OECD2006年报告称,任何传输速率在256Kbps以上的互联网连接,可称为宽带。[1]
FCC解释,下載速率25Mbps以上,上載速率3Mbps以上的互聯網,可稱為寬頻。[2]
參考文獻
^ 2006 OECD Broadband Statistics to December 2006. OECD. [June 6, 2009].
^ 2015 Broadband Progress Repot. FCC. [2015].
参看
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