凱擘Super MOD數位匯流平台 整合壹網樂 - MOD

By Genevieve
at 2012-09-06T07:07
at 2012-09-06T07:07
Table of Contents
不是很清楚這"10M專屬頻寬"的來龍去脈
不過,如果維持DVB-C原來架構的話
這"10M專屬頻寬"根本就是廢話
因為每個6MHz頻段原本就是各司其職
舉個例:NGC HD用的10Mbps本來就跟其他頻道和服務不一樣
這個特性以目前cable主流上網頻寬看起來還ok
但如果要像CHT一樣大量推100M的話,缺點馬上就會顯現出來了
因為每段6MHz都專用
整個750MHz的頻寬裡要分配好大一段給類比電視
剩下的給數位電視和上網用,數位電視用得多,上網就用得少
所以上網頻寬真的不會跟電視重疊
但會跟其他上網的人搶頻寬,而且搶得比CHT嚴重很多
但如果是像MOD一樣,劃固定10Mbps頻寬給video stream
然後不管甚麼頻道都走這個頻寬的話
那就表示非DVB-C模式,意味著選台速度的優勢消失
轉台速度變得跟MOD一樣
另一個值得注意的地方是
這是否代表KBRO的HD要變成10Mbps流量了?(上網頻寬又更被擠壓了)
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