"The Swedish Space Corporation (SSC) announced today that they have transmitted information via a broadband wireless link over a distance of 310km. They believe that this is the longest distance achieved using wireless connectivity.
The link was made between a stratospheric balloon that was launched from Esrange near the town of Kiruna in northern Sweden and a base station located near Esrange."
Dang...how bout from land to land wifi transfer? Because that is like land to air. Land to Land wifi will get some problems over the curvature of the earth.
World?s Longest Wi-Fi Connection 
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