TAG: eLoran

GNSS Backup Delivers 5-Meter Accuracy

April 30, 2014By

The North Sea fairly boils with GNSS activity recently. Trials of the eLoran back-up for GNSS, Galileo maritime trials, Brad Parkinson’s Protect, Toughen, and Augment sermon at the European Navigation Conference in Rotterdam, and also at that conference, the dramatic release of news concerning an even newer Loran system, enhanced differential Loran, that not only backs up GNSS in the... read more

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GLONASS Blackout Coincides with Loran Authorization-in-Progress

April 8, 2014By

Russia’s April 1 GLONASS blackout occurred, ironically, only hours after the U.S. House of Representatives passed legislation to preserve infrastructure that could support a back-up system for GPS that could be used for critical infrastructure and applications in the event of a similar disaster occurring in the United States. The 2014 Coast Guard Authorization Act requires the Department of Homeland... read more

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Out in Front: Complements of the Season

February 1, 2014By
Alan Cameron

In the wake of last month’s Expert Advice column on eLoran — “The Low Cost of Protecting America” by Dana Goward of the Resilient Navigation and Timing Foundation —  come several positive comments and encouraging developments. Rather than rehearse all the arguments why we should care about this, I’ll repeat the one word that I heard most often in GNSS... read more

Expert Advice: The Low Cost of Protecting America

January 1, 2014By

By Dana A. Goward Highly precise and free for use by anyone with an inexpensive receiver, GPS and other GNSS are great. Their navigation and timing signals have been incorporated into nearly every aspect of modern life, from synchronizing power grids to financial systems, the Internet, telecommunications, and transportation. The U.S. Department of Homeland Security estimates that these signals are... read more

UrsaNav Accepts Delivery of First Production Nautel NL40 eLoran Transmitter

November 19, 2013By

After extensive Final Acceptance Testing at Nautel’s Hackett’s Cove, NS facility, UrsaNav has accepted delivery of the first production NL40 Loran-C and Enhanced Loran (eLoran) transmitter. This seventh-generation Loran transmitter technology is the culmination of more than six years of collaborative development between the two companies. The transmitter successfully met or exceeded all of the requirements of the U.S. Coast... read more

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Ubiquitous PNT and Sequestration: The World Runs on GPS Time

November 18, 2013By

A couple of years ago, wearing a different hat, I found myself on a guided tour of a key military C2 (Command and Control center) that was about as big as a football field and was to be deployed somewhere in Southwest Asia. My colleagues and I, who are all GPS SMEs (Global Positioning System Subject Matter Experts), asked the... read more

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Making Europe’s Seaways Safe for eNavigation

April 1, 2013By
28 days worth of ship-traffic data for the Strait of Dover.

An overview of the work of the General Lighthouse Authorities of the United Kingdom and Ireland on the implementation of Enhanced Loran Initial Operational Capability (IOC) in the waters around Great Britain. eLoran is the latest in the longstanding and proven series of low-frequency, LOng-RAnge Navigation systems. It evolved from Loran-C in response to the 2001 Volpe Report on GPS vulnerability. It vastly improves upon previous Loran systems with updated equipment, signals, and operating procedures. read more

UK Switches on eLoran for Backup in the English Channel

January 9, 2013By

The General Lighthouse Authorities of the UK and Ireland (GLA) have announced that ships in the Port of Dover, its approaches and part of the Dover Strait can now use eLoran radio navigation technology as a backup to satnav systems like GPS and Galileo. What is considered the world’s busiest shipping route is the first to deploy eLoran to counter... read more