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“GPS Anomalies” Caused Air Traffic Controllers in Texas to Reroute Some Flights

The US Federal Aviation Administration (FAA) is investigating what disrupted GPS and caused some flights in Texas to be rerouted. On Monday, October 17, the FAA released an alert over its Automatic Terminal Information Service (ATIS) that “GPS reported unreliable within 40 NM of DFW.” Over the next day, the disturbance spread to Waco, and then, on the evening of Tuesday, October 18, it stopped.


  • While 5G traffic has been known to impact GPS signaling due to interference with older, legacy devices which use the same frequencies, typically that cause can be pinpointed fairly quickly. In this case no such link can be established. While GPS interference isn’t life-threatening, and planes can revert to older navigation options, it still causes delays, cancellations, etc.


Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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