缺哪些頻會影響使用台灣五大電信主頻 - 手機討論

By Aaliyah
at 2019-03-02T15:46
at 2019-03-02T15:46
Table of Contents
最近拿同事從中國淘寶跟京東、美國亞馬遜等電商通路弄回台灣的海外手機來玩。
發現像是中國很多手機缺B28(700)的頻段,
裝台哥跟亞太的sim卡,要嘛訊號很差,
不然就是降3G,不然就是跳900頻網速很慢。
不過亞太的主頻雖然在B28,但網速比較快應該是在B39?(魔術方塊?)
也拿過缺B7(2600)頻段的手機,
裝台星的卡,整個速度完全悲劇,常常3M上下,
台星的主頻跟網速壓寶在B7上面?
(拿台版手機有支援B7,同一地點就立刻可以恢復成45M上下)
但拿這支缺B7的手機去裝中華的卡,網速就影響不大。
中華、遠傳因為有各種CA,動輒都可以跑到破100M以上。
就算少了任何一個頻段,影響都有限的樣子?
(拿中國殘頻機裝遠傳的卡,少B28影響不會如台哥或亞太明顯?)
想請教各位,到底五家電信商有哪些頻段一定不能缺,
買國外版手機才不會用起來苦笑不得?
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