Image: Shutterstock What's new: A string of statements and actions that probably indicate the troubled OCX program is about to be cancelled for failing to deliver a workable system after 16 years and $8B of effort. Why it's important: GPS needs an upgraded and...

Image: FAA What's new: An FAA guide for pilots we just heard about. It was first published in December, but was recently updated Why it's important: Aircraft are the platforms most impacted by GNSS interference at the moment. Signals travel line-of-sight so aircraft...

Image: Shutterstock What's new: The most recent edition of the Secure World Foundation's "Global Counterspace Capabilities" report discusses GNSS interference at greater length. It is described as a constant - now just part of the environment. Why it's important: This...

Image: UHU What's new: Several interesting cases of interference and detection at the ports of Los Angeles and Long Beach, CA. Why it's important: GPS/GNSS interference can disrupt port operations. Deliberate interference with GPS/GNSS is almost always associated with...

Image: Defense Strategies Institute What's new: Takeaways from last week's Assured PNT Summit sponsored by Defense Strategies Institute and moderated by the RNTF President. Why it's important: In many ways the audience focused more on policy issues and less on tech...

Image: Shutterstock What's new: An interesting paper sent to us by member Alexander Parolini that offers a new take on what our over-dependence on GNSS means. Why it's important: His paper addresses "...unpriced systemic risk — one with no analog in any other class of...

Image: Copilot AI What's new: A report commissioned by the Norwegian government on the nation's dependence on GNSS. Why it's important:  Understanding the nature of their dependence is key to making their national PNT resilient. What else to know: Norway has...

Image: Shutterstock What's new: A "Washington View" column by RNTF President Dana A. Goward discussing the importance of governance and the need for change. Why it's important: As conditions change, systems and processes need to adapt to remain effective. Without good...

Image: Brad Parkinson What's new: In preparation for this week's DSI Assured PNT Summit, Dr. Brad Parkinson, the first chief architect of the Global Positioning System, sent us a one pager outlining some of his thoughts. Why it's important: Brad has been involved with...

Image: Todd Humphreys What's new: Interesting slides from Todd Humphreys' presentation at the Munich Space Summit.  Why it's important: He shows that drones can be much more resilient to GNSS interference, if the operator is willing to spend some money and effort. It...

Image: Shutterstock What's new: A report on the satnav portion of the Munich Space Summit. Why it's important: Munich is always an outstanding event.  This year included the public debut of the U.S. Department of Transportation's new PNT leader, Chris Erickson. What...

What's new: The Dept. of Transportation has announced the agenda for this year's CGSIC Meeting. Why it's important: The department is required by law to convene an annual meeting to get input from civil GPS users.  CGSIC = Civil GPS Service Interface Committee. What...

Image: Defense Strategies Institute What's new: The annual Assured PNT Summit is happening in DC next week. A few seats are still available. Why it's important: It is a great opportunity to hear from senior defense and transportation leaders in government about PNT...

Image: Shutterstock What's new: A guide for airports from the Aviation Cyber Initiative (DHS/DOD/DOT) about how to prevent and prepare for GPS disruptions. Why it's important: Disruptions at an airport can be more impactful and delay more flights than disruptions to...

Image: RNT Foundation This year’s long-standing annual Munich Satellite Navigation Summit was held as the second half of a new Munich Space Summit. We were lucky enough to attend and are glad to report the satnav event has lost none of its focus or impact. There were...

Image: FrontierSI What's new: An update to FrontierSI's LEO PNT report. It was completed at the end of 2025 and published yesterday. Why it's important:  It is a rapidly growing field. There were 9 projects listed in the 2024 report and 14 in this one. The growth in...

What's new: An ESA/ Eurocontrol plan for dealing with GNSS RFI in aviation over the short, medium, and long term. Why it's important: Interference with GNSS reduces safety margins by increasing pilot workload and disabling some systems like collision and terrain...

Image: Shutterstock What's new: A report about a Chinese paper describing how 5G signals could, with little change in infrastructure, complement GNSS to improve positioning, especially in urban environments. Why it's important: Urban canyons can be a challenge for...

Image: Shutterstock What's new: A commentary by the Reason Foundation about legislation that would compel aircraft owners to install upgraded ADS-B equipment to help avoid mid-air collisions. Why it's important: People generally only spend money when they either think...

Image: U.S. Air National Guard Senior Master Sgt. Julie Avery What's new: Yet another activity impacted by Russian jamming. Why it's important: A great reminder of the many, many ways GPS/GNSS is used and our dependence upon space-based PNT. What else to know: There...

Image: GPSwise What's new: A short, 2 minute burst of spoofing near the Dallas-Ft Worth airport. Why it's important: Spoofing disrupts traffic flow, diverts the attention of pilots, and generally makes aviation less safe and less efficient. What else to know:...

Image: Shutterstock What's new: The first coverage we have seen in India about this issue. Why its important: India and China are neighbors and have a 'frenemy' relationship. China is far more PNT capable and resilient than India and therefore has tactical and...

Image: Jammerall.com What's new: The government of Finland is proposing legislation to make unauthorized possession RF jammers illegal. Why it's important:  Jammers are frequently tools for other criminal activity.  In many nations (like the U.S.) its OK to have a...

Image: European Space Agency International eLoran Standardization Workshop What's new: The European Space Agency posted about an international eLoran standardization workshop it hosted. At about the same time Chinese authorities pre-released a paper about integrating...

Image: Shutterstock What's new: A claim in Al Jazeera that Iran is using an "unjammable" version of Bei Dou to guide its missiles and drones. Why it's important: The claim is being repeated by other news outlets, but it is wrong. What else to know: Most of our readers...

Image: Jeremy Bennington, Spirent What's new: Concern and press coverage about GNSS interference in the Persian Gulf and Strait of Hormuz continues to ramp up. Why it's important: Electronic and kinetic attacks, mostly oil, have brought shipping to a near halt and are...

Image: Shutterstock What's new: A press release about the latest step in the UK's timing project. Why it's important:  If you are a regular reader, you know timing is a critical enabler for all IT and most technologies.  The UK is happy to use vulnerable GNSS when it...

Image: European Space Agency What's new: An interesting article about how climate change is reducing number of satellites that can safely co-exist in Low Earth Orbit (LEO). Why it's important: Humanity is becoming increasingly dependent on satellite services from LEO....

Image: Shutterstock What's new: An article that discusses an interesting question. We think it gets the answer wrong. Why it's important: The questions of what fails first, which are the most important applications to fail, what will be the sequence of failures, and...

Image: Shutterstock What's new: A maritime report and perspective we don't usually hear from - the yachting world. Why it's important: This article provides a very personal and relatable account of being bullied in the Baltic by Russian forces. It also shows how GNSS...

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...