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FAA Warns That Mystery Military Tests May Lead To Widespread West Coast GPS Disruptions

FAA Warns That Mystery Military Tests May Lead To Widespread West Coast GPS Disruptions

Starting today, and continuing for the next month, the FAA has warned airplane pilots that GPS signals on on the West Coast, and especially over California and Nevada, may be impacted.

The reason why is not exactly clear, but as Gizmodo notes, the US military will be testing a device or devices that will potentially jam GPS signals for six hours each day. Officially the tests were announced by the FAA but are centered near the US Navy’s largest installation in the Mojave Desert, China Lake, located “just down the road” from Area 51. The Navy has kept silent about the nature of the tests.

An aerial view of the Naval Air Weapons Station China Lake 

As Gizmodo adds, the FAA issued an advisory warning pilots on Saturday that global positioning systems (GPS) could be unreliable during six different days this month, primarily in the Southwestern United States. On June 7, 9, 21, 23, 28, and 30th the GPS interference testing will be taking place between 9:30am and 3:30pm Pacific time. But if you’re on the ground, you probably won’t notice interference.

The dates and times of potential GPS outages per the FAA are shown below:

  • 7 JUN 16 1630Z – 2230Z
  • 9 JUN 16 1630Z – 2230Z
  • 21 JUN 16 1630Z – 2230Z
  • 23 JUN 16 1630Z – 2230Z
  • 28 JUN 16 1630Z – 2230Z
  • 30 JUN 16 1630Z – 2230Z

The testing will be centered on China Lake, California—home to the Navy’s 1.1 million acre Naval Air Weapons Center in the Mojave Desert. The potentially lost signals will stretch hundreds of miles in each direction and will affect various types of GPS, reaching the furthest at higher altitudes. But the jamming will only affect aircraft above 50 feet. As shown in the FAA map below, the jamming will almost reach the California-Oregon border at 4o,000 feet above sea level and 505 nautical miles at its greatest range.

…click on the above link to read the rest of the article…

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