Korea eLoran At RPNT Forum II

A very good “Inside GNSS” article about Korea’s announcement at Resilient PNT Forum II of a re-invigorated project after a number of contracting delays. [big_button...

US Government Tiger Team Report – “GPS Complements”

A rare glimpse into the thoughts and processes of the federal inter-agency in the arcane field of Position, Navigation and Timing, especially regarding GPS alternatives, was provided at the Stanford University PNT Symposium in October. An FAA presentation revealed the...

GPS Interference – A Cyber Problem

The most recent edition of the U.S. Coast Guard’s journal of safety and security at sea, “Proceedings” included interference with GPS as one of the cyber-vulnerabilities mariners needed to be concerned about. The Coast Guard reinforced that at a recent public meeting...

US Army – How much for 50,000 eLoran Receivers?

Credit: US Coast Guard The US Army released a “Request for Information” yesterday seeking industry’s input on the cost to acquire up to 50,000 eLoran receivers. The Department of Defense is interested in taking advantage of “signals of opportunity.” Among the issues...

Sun More Dangerous Than North Korea

Credit: NASA/SDO/AIA   NOAA posted another severe space warning last week indicating that satellite navigation system operation could be compromised. Such alerts are not uncommon, especially recently as the sun seems to have recently been at a “solar maximum” and...

GPS is an Attractive Nuisance

One of the many interesting exchanges at the US National Position, Navigation, and Timing Advisory Board in December was Professor Per Enge’s response to a question about how having a high power, difficult-to-disrupt, terrestrial eLoran system that provided GPS-like...