"Extensive government testing in 2011 and in 2016, clearly shows that both proposals cause definitive harmful interference to many classes of GPS receivers," wrote Board Chairman John Stenbit. The new plan, however, is not sufficiently different to prevent interference, concluded the National Space‐based Position Navigation and Timing Advisory Board (PNTAB) at its end-of-June meeting. LightSquared changed its name to Ligado Networks and presented a revised plan in 2016 aimed at limiting interference. The company filed for bankruptcy shortly thereafter, emerging in late 2015. However, tests in 2011 showed the LightSquared signals would overload the vast majority of GPS receivers and the Federal Communications Commission (FCC) put the plan on hold in 2012. Named LightSquared at the time, the company asked regulators to allow it to use its MSS frequencies to support some 30,000 high-powered ground stations. The GPS community has been at odds with Ligado since 2010 when the Virginia firm proposed to a nationwide wireless system based on the rezoning of its licensed frequencies, which were allocated for Space‐to‐Earth Mobile Satellite Service (MSS). In the recommendation, a number of statements were highlighted and printed in bold for emphasis. Though the letter, which was released July 10, does not specifically name the wireless network proposed by Virginia-based Ligado Networks, the dates and information in the letter closely tracks the firm’s plans, assertions and testing.
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