Image: Shutterstock What's new: An experienced and distinguished mariner at Kings College, London, reinforcing warnings about GNSS interference and shipping. Why its important: Interference with GNSS has already caused: Collisions at sea Ship groundings Environmental...

Image: Shutterstock What's new: An insightful commentary on the need for a systems approach to how our infrastructures are built and interact.  Why it's important: It reinforces that: We build good things, but, Need to be more thoughtful, especially about how things...

Image: DSI Group What's new: Defense Strategies Group's annual Assured PNT Summit is a month away! Why it's important: This event is an interesting mix of military and civil, with some very noteworthy speakers.  Most notable example this year is the Vice Chief of...

Image: Shutterstock What's new: Not surprisingly, there has been a huge uptick in GPS jamming by Iran since the U.S. and Israel began attacks. Why it's important: The combination of kinetic and electronic attacks seems to have brought ship traffic through the critical...

Image: Copilot AI What's new: An opinion piece about Canada not depending upon the US for PNT. Why it's important: PNT is essential for virtually all technology that supports daily life. If a country does not have one or more sovereign sources of PNT, it isn't really...

Image: Shutterstock What's new: Another great opinion piece by Sean Gorman. Why it's important:  The U.S. government "Doing the same thing and expecting different results is..." GPS satellites are great! They do exactly what they are supposed to do. That isn't where...

Image:  Shane Tews, American Enterprise Institute What's new: A 30 minute podcast by the American Enterprise Institute (AEI). Why it's important: This tech podcast reaches influential conservative policy makers, but had never addressed PNT, a fundamental tech utility...

Image: Shutterstock What's new: The current Washington View column in Inside GNSS+ by RNTF President Goward. Why its important: Widely accepted falsehoods are the basis for bad decisions. What else to know: Often (not always) when you give people information that...

Image: Shutterstock What's new: Interesting insight to a Space Force study about future space-based PNT for the military. Why it's important: It seems to give some interesting hints about DoD's thinking and potential plans. What else to know:  The study abstract...

Image: RNT Foundation What's new: An opinion piece by RNT Foundation member and former Deputy Asst. Sec. of Transportation Diana Furchtgott-Roth. Why it's important: The FCC is considering actions that could impact national PNT policy and systems. Diana makes a series...

Image: Shutterstock What's new: A recent report from Australian think tank FrontierSI. Why it is important: It is an extensive and thorough report focused on Australian PNT - but it also applies to the U.S. and any other nation that over-relies on GNSS (i.e. does not...

Image: Shutterstock What's new: An opinion piece from the RNT Foundation President following on to a new report from FrontierSI and AIN's PNT2026 conference in Sydney. Why it's important: Australia seems to be following the U.S. model for PNT governance when they...

Image: Shutterstock What's new: An insightful piece from a maritime pilot on the front lines. A high demand PNT user who guides 350-meter-long ships in tight spaces through harbors designed 30 years ago for ships that were <150-meters long. Why it's important:  We...

Image: Shutterstock What's new: A reminder of how the U.S. has fallen behind China with GPS compared to Bei Dou. Bei Dou satellites are newer and have more capability Bei Dou has 56 satellites vs 31 for GPS Bei Dou has 120 ground stations vs 11 for GPS Why its...

Image: Shutterstock What's new: Data and anecdotes we have not seen often, in some cases ever, about interference in aviation: EASA said that of about 6,000 spoofing incidents in 2025, 25% were during approach. - That counts! On spoofing: “Actual occurrences are...

Image: Instagram - LTGEN Susan Coyle, Australia Defence Forces What's new: The leader for Joint Capabilities for Australia's Defence Force (J8 in the U.S.) discussing navigation warfare at Australia Institute of Navigation's PNT2026 in Sydney. Why it's important: The...

Image: Shutterstock What's new: This item we overlooked last month about PNT security at Davos. Why it's important: Physical security, cybersecurity, and finally PNT security is becoming "a thing." Next step could be resilient systems! What else to know: This is a...

Image: Shutterstock What's new: An interesting LinkedIn post from Dr. Avraham (Avi) Cohen in Israel about how GNSS interference is accelerating the move to autonomous weapons systems. Why it's important: Removing the human in the loop for what targets to hit and who...

Image: Shutterstock What's new: China's announcement of a new anti-satellite weapon. Why it's important: More evidence that satellites are important and space is not safe. If China is talking about this capability to destroy satellites in LEO, what capability do they...

Image: Shutterstock What's new: The Coast Guard has announced more information about CGSIC in April, and provided a link if you want to attend in person. RNT Foundation has scheduled its annual meeting and reception for the evening of the 20th of April at NAB...

What's new: A podcast from the Texas Transportation Institute (TTI) featuring the RNTF President. Why it's important: Transportation professionals, like a lot of us, tend to take GPS for granted. They base their plans, and their day-to-day operations, on the...

Image: Gen. David Thompson, USSF, inducting Gladys Mae West into the Space Force Hall of Fame. US DoD photo What's new: The passing of an important contributor to GPS and all the benefits we receive from space-based PNT. Why it's important: It is important to...

Image: USAF What's new: An appropriations report accompanying the DOD funding bill that outlines how GPS and PNT money is to be spent. Why it is important: Where Congress puts various amounts of money, and what they say about it, indicates what they are thinking, and...

Image: NATO Minesweepers in the Baltic, US Navy photo by MC2 Amanda s. Kitchner What's new: Spurred on by years of GNSS interference Baltic and North Sea coastal nations, plus Iceland, vow to crack down on a variety of violations of international maritime law. Why...

Image: Singapore Maritime Safety Agency, ship from night collision during GNSS spoofing What's new: The Royal Institute of Navigation (RIN) published a report "Impacts of GNSS Interference on Maritime Safety."  Why it's important: GNSS interference has already caused...

Image: Shutterstock What's new: As a non-profit, NAB seems like it might be interested in helping/coordinating/leading a resilient national PNT architecture for the U.S. Why it's important: Leadership has been a shortfall in the national PNT equation for some time....

Image: European Space Agency What's new: Increasing concerns about the lack of Space Situational Awareness, and the potential for catastrophe with all the satellites being placed in low earth orbit where there are already tens (if not hundreds) of thousands of pieces...

Image: GPS Wise What's new: Rarely seen spoofing activity in the interior of China on the 20th of January. Why it's important: We aren't really sure, except that it is unusual. If it was near a conflict zone, or along the coast where there are likely to be embargoed...

Image: Shutterstock What's new: Per the headline, U.S. Space Force has cancelled the Resilient GPS (R-GPS) program. The project was to have put small satellites in LEO transmitting on GPS frequencies that would have been received as stronger and more accurate signals....

Image: Copilot AI What's new: A system for landing drones on ships without GNSS Why it's important: Shipboard landings can be many times more difficult than landings ashore. The landing area is almost always moving in all three dimensions and weather can be more...

Image: Shutterstock What's new: An article about UAS governance by RNTF President Dana A. Goward. Why it's important: UAS and Counter-UAS are great use cases for why the U.S. needs a multi-layered resilient national core PNT architecture. It is important for...

Image: Shutterstock What's new: Prosecutors have charged a man found with a jammer at the Warsaw airport with endangering aviation safety. Why it's important: Using a jammer at the airport could interfere with operations, delay flights, perhaps even cause accidents on...

Image: Copilot AI What's new: Information that Iran used GPS spoofing to interfere with Starlink's service in that country. Why it's important: It is another great example of how systems you might not expect depend upon GPS and the vulnerabilities that introduces....

Image: Shutterstock What's new: Articles and papers exploring the PNT capability of communications systems. One of the most recent and accessible is "Communications-PNT integration: A new architectural layer for resilient and ubiquitous navigation" in GPS World. Why...

Image: Shutterstock What's new: Iran has used military grade jamming to prevent use of Starlink in the country. Why it's important: Starlink is a LEO comms system that can also be used by some for PNT when GNSS is not available. From a PNT community point of view, it...

Image: Shutterstock What's new: Two government agencies in Norway are proposing establishment of a national time service that does not depend on satellites and are asking for input. Observers tell us this project will go forward and this request is to help refine how...

Image: Shutterstock What's new: An article providing and excellent overview and summary of where we are today with LEO PNT, and where things look like they are going. Why its important: PNT from LEO can have lots of attributes that decrease users' vulnerabilities...

Image: Shutterstock What's new: An opinion piece by Sean Gorman about the need for a resilient PNT architecture that includes terrestrial systems. Why it's important: These kinds of articles keep the issue fresh in people's minds. When they come from different...

Image: UK Civil Aviation Authority What's new: An article in Inside Unmanned Systems about Golden Dome and that system's need for resilient PNT which could also support UAS and Counter-UAS operations. Why it's important: The government seems concerned about UAS and...

Image: Shutterstock What's new: A letter from RNT Foundation members Gen. William Shelton, and CAPT Dana A. Goward to the Washington Post commenting on an article they published at the beginning of the year. Why it's important: From our perspective, the issue is not...

Image: Marc Berkowitz at Senate confirmation hearing (screenshot) What's new: The Hon. Mark J. Berkowitz is the new Assistant Secretary of Defense for Space Policy. Why it's important:  Mr. Berkowitz is well versed on GPS vulnerability and other PNT issues. In 2024 he...

Image: Shutterstock What's new: A summary/ overview article of GPS' importance and vulnerability in the Washington Post. Why its important: The primary challenge to PNT resilience in the U.S. is lack of leadership focus and effort. While "the Post" is not the most...

Image: Shutterstock What's new: A "European perspective" from my colleague Peter Gutierrez at Inside GNSS. Why it's important: Peter makes a number of important points: "The AIS spoofing incident is not an isolated incident but part of a broader signal-integrity...

Image: Shutterstock What's new: An article about challenges operating in the Arctic which include degradation or denial of GNSS. Contributors to degradation can include low elevation of satellites, terrain, and Earth's electromagnetic field. Why it's important: The...

Image: Copitlot AI What's new: A posting by RNT Foundation member organization Frontier SI discussing resilient PNT generally and examining the need and case for Australia. Why it's important: Australia is an excellent example of a developed country still coming to...

Image: Atomic clock at UK's National Physical Lab What's new: The U.S. National Institute of Standards and Technology (NIST) lost 4.8 microseconds last weekend when emergency generators failed to start during a commercial electrical grid outage. Why it's important:...

Image: Shutterstock What's new: A fairly comprehensive report from the New York Times about jamming and spoofing in and around Venezuela. Why it's important: The article reinforces the idea that "everyone jams." PNT is a tool of tactical and strategic great power...

Image: Resilient PNT Architecture - RNT Foundation What's new: Editor's intro to the Nov-Dec 2025 edition of Inside GNSS+. Why it's important: This intro provides a high level summary of the comprehensive report on September's PNT Leadership Summit further on in the...

Image: Federal Communications Commission What's new: RNT Foundation President Dana A. Goward met with FCC Commissioner Trusty and staff recently to discuss global and national PNT policy.  Why it's important: The FCC has three dockets, that we know of, that deal...

Image: USAF Tanker DoD.mil What's new: A near-miss between a Jet Blue airliner leaving Curacao and a USAF tanker. The tanker was not broadcasting its location through ADS-B nor, apparently, notifying air traffic control it was in the area. Why it's important: People...