AT&T plans to use power lines to deliver hi-speed internet service
Soon, electricity won't be the only thing that will come from those power lines you see placed throughout the U.S. Today, AT&T introduced Project AirGig. The service will provide "low-cost, multi-gigabit wireless internet speeds" from power lines. For AT&T, it gives the company the opportunity to provide internet service in areas usually not covered by the carrier.
This isn't the first time that major tech firms toyed with the idea of delivering the internet using power lines. Over the last decade, companies like Google and IBM worked on delivering a signal using this method by sending a signal inside the wires. AT&T's system disseminates a signal around the lines. Other problems popped up with previous attempts to use power lines to distribute broadband. For example, broadcasts on emergency radios were often disrupted.
source: AT&T via CNET
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