wifi信号可以传播380公里（普通接受装置）-420公里（含6瓦信号放大器）（维基百科）

来源: 于 2019-05-26 16:52:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次
Distance records

Distance records (using non-standard devices) include 382 km (237 mi) in June 2007, held by Ermanno Pietrosemoli and EsLaRed of Venezuela, transferring about 3 MB of data between the mountain-tops of El Águila and Platillon.[70][71] The Swedish Space Agency transferred data 420 km (260 mi), using 6 watt amplifiers to reach an overhead stratospheric balloon.[72]