http://gizmodo.com/faa-warns-of-gps-outages-this-month-during-mysterious-t-1780866590
The Navy plans to test a device that makes GPS inaccurate or unavailable. The dates are June 9 (today), June 21, June 23, June 28, and June 30. Tests will take place 9:30AM to 3:30PM PST.
If you're close to the test location at the Naval Air Weapons Station at China Lake, CA, then GPS receivers on the ground can be affected. Airborne GPS may be affected as far as 500 miles away.
One possible use for such a device might be to confuse drone aircraft or missiles attacking a ship at sea.
The Navy plans to test a device that makes GPS inaccurate or unavailable. The dates are June 9 (today), June 21, June 23, June 28, and June 30. Tests will take place 9:30AM to 3:30PM PST.
If you're close to the test location at the Naval Air Weapons Station at China Lake, CA, then GPS receivers on the ground can be affected. Airborne GPS may be affected as far as 500 miles away.
One possible use for such a device might be to confuse drone aircraft or missiles attacking a ship at sea.