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Broadcast Companies Want to Use TV Towers as a GPS BackupThe over-the-air broadcasting industry has an idea: using TV broadcast towers as a fallback positioning system. Sinclair Inc ...
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DC plane crash updates: Helicopter had advanced tracking system turned off, lawmaker saysThe system, which is the preferred method of surveillance for air traffic control in the U.S., improves visibility by broadcasting an aircraft's GPS location ... control towers and vowed to ...
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