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Featured Articles   I   February 2016
 
What Happened?!? -- Here is What We Know:
RNTF Staff

One of the world’s best and most reliable systems, GPS, had an “anomaly” last week that caused many users across the globe to have minor problems. The US Air Force issued a statement explaining the malfunction. But the question everyone is asking is “What happened to users?” 

We have heard talk of alarms and resets for cell base stations, electrical grid synchrophasers, first responder radio systems, IT networks, science applications, and so on, all over America (nothing really terrible, fortunately). The Air Force statement said that “U.S. Strategic Command’s Commercial Integration Cell…effectively served as the portal to determine the scope of commercial user impacts.” So we asked Strategic Command. Unfortunately, our requests for information have gone unanswered.

Click HERE to read the rest of the article.

See Also:  GPS Errors Caused ‘12 Hours of Problems’ For Companies


Defense Department Researchers Push Plan Aimed at Avoiding Worldwide GPS Meltdown
Tom Roeder
Gazette.com

The Defense Department’s top researchers want ground-based miniature atomic clocks to avert a global catastrophe if the orbiting timepieces that make up the Colorado Springs-based Global Positioning System stop ticking.

The Defense Advanced Research Projects Agency announced a crash program to invent miniature advanced atomic clocks that reflects growing worries about the vulnerability of Air Force Space Command’s GPS satellites.

Click HERE to read the rest of this article. 


GPS Glitch Caused Outages, Fueled Arguments for Backup - Inside GNSS
Dee Ann Divis
"Inside GNSS"


Less than a month after Europe switched off most of its Loran transmitters, a problem with GPS satellite timing signal triggered alarms across thcontinent and caused an unknown number of outages, including the disruption of some features of critical infrastructure.

The GPS problem was caused by an error in ground software uploaded January 26 as system operators removed space vehicle number (SVN) 23 from service. The long-planned deactivation of SVN 23, the oldest of the GPS satellites, clears the way for a new satellite, the last GPS Block IIF, which is to be launched February 4.

Click HERE to read the rest of this article.


USCG Issues Safety Alert - GPS/GNSS, Trust But Verify
United States Coast Guard

Do you know what equipment relies upon the U.S. Global Positioning System (GPS) signal? How would you respond if you lost the signal? This past summer, multiple outbound vessels from a non-U.S. port suddenly lost GPS signal reception. The net effect was various alarms and a loss of GPS input to the ship’s surface search radar, gyro units and Electronic Chart Display & Information System (ECDIS), resulting in no GPS data for position fixing, radar over ground speed inputs, gyro speed input and loss of collision avoidance capabilities on the radar display. Fortunately, the vessels were able to safely continue their voyage using radar in heads up display, magnetic compass and terrestrial navigation. Approximately 6nm later, the vessels’ GPS units resumed operation..

Click HERE to read the rest of this article. 

 

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