holy_calamity writes "San Diego startup On-Ramp Wireless has put together a proprietary protocol that sends data over 2.4GHz (like WiFi) but over distances of up to forty-five miles. Links using the technology are slow, 50bps at most, but could reduce the cost of smartgrid deployments. Connecting up home energy meters today requires using cell networks or unlicensed spectrum with much shorter reach."
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