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用高频段还是用低频段?
iamflying
(叶和花)
虽说WiFi的5GHz频段不拥挤,但我使用的体验总是很差,家里很多地方的信号弱,还不如用2.4G。
类似的,LTE里,低频的700MHz是大家抢的优质频段,为什么突然间30G以上的毫米波频段变成了热点?能穿墙吗?
(#11871719@0)
Last Updated: 2019-1-8
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用高频段还是用低频段?
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