Image: Copilot AI What's new: Another report about Todd Humphreys' efforts, though this one has a bit more of the backstory about how this was discovered. Why it's important: We hope this helps raise awareness about threats and risks. What else to know: Regrettably,...

Image: Shutterstock What's new: A new recurring feature at Inside GNSS. Why it's important: LEO PNT has enormous potential to provide similar services as MEO PNT but with greater performance and greater resilience. What else to know: Xona, Trustpoint, (both RNT...

Image: RNT Foundation What's new: It has been six years since the FCC ruled in favor of Ligado. Now Ligado wants to change almost everything about the bargain it struck with the commission. Why it's important: Use of some of the frequencies Ligado was granted could...

Image: Shutterstock What's new: Prof Todd Humphreys and his team at the University of Texas Radionavigation Lab, in cooperation with a Stanford researcher, have identified Russian satellites that have been testing jamming capability against GPS and Bei Dou.  While not...

Image: Shutterstock What's new: The National Association of Broadcasters (NAB) has formed a separate company to develop, advocate for, and deploy the Broadcast Positioning System (BPS). Why it's important: NAB has put increasing effort behind BPS since its inception...

Image: Shutterstock What's new: An article about forms of navigation using aspects of the earth's magnetic field.  Why it's important: Autonomous navigation is becoming more interesting for a number of applications in a world where interference with GNSS is becoming...

Image: Shutterstock What's new: RNTF President Dana Goward's column for the May/June edition of Inside GNSS+. Why it's important: It discusses a PNT example of how concern within the tech community does not necessarily turn into action by political leaders. Or at...

Image credit: House Energy and Commerce Committee What's new: A congressional hearing titled Where Are We?: Examining Positioning, Navigation, and Timing Capabilities in the United States. Why it's important:  The hearing is being held by the Communications and...

Image: RNT Foundation What's new: Proposed legislation calling for the Department of Defense (DOD) to consolidate leadership of PNT issues.   Why it's important: In the opinion of many, including the now defunct National Space-based PNT Advisory Board, poorly...

Image: Jeremy Bennington What's new: An important opinion piece on LinkedIn by RNTF member Jeremy Bennington at Spirent about intentional GPS disruption and aviation safety. Why it's important: People's lives are at stake. False contacts, bad locations, relying on...

Image: GPSJam.org - Jamming in the Baltic the day of the minister's flight What's new: The aircraft carrying another high ranking official experienced jamming in northern Europe. Why it's important: Even though jamming impacts tens of thousands of ordinary people on...

Image: UK General Lighthouse Authority - 28 days of ship traffic in Dover Strait What's new: An opinion piece from the head of the UK's General Lighthouse Authority which is responsible for maritime aids to navigation and assists government in marine spatial planning....

Image: Spoofing activity in northern Europe displayed on GPSWise.areo What's new: A report of increased Russian spoofing capability in Kaliningrad. Why it's important: Spoofing is hazardously misleading information and can result in tragedy. What else to know:...

Image: Shutterstock What's new: The annual "Global Counterspace Capabilities Report" from our friends at the Secure World Foundation (SWF) Why it's important:  More and more things depend upon space. This means that adversaries have more and more reasons to interfere...

Image: Shutterstock What's new: A report of Russia spoofing Ukrainian drones and sending them against NATO targets. Why it's important: Russia is attacking NATO kinetically. This is not just electronic warfare anymore. Secondarily: If true, it shows Ukraine is still...

Image: Shutterstock What's new: Canada has announced it is cancelling its short wave time signals as of the 22nd of June 2026. Why it's important: The other sources of official time from the Canadian government (National Research Council, or NRC) are less accurate...

Image: AB3.Army on Youtube - The town of Lyman in Ukraine draped with fiber optic cable from both Ukrainian and Russian FPV drones. What's new: An interesting article about drone warfare, and how the U.S. is asking something from Ukraine, a bit of a reversal in the...

Image: Shutterstock What's new: A report that multiple companies are offering governments the ability to geolocate Starlink terminals.  Why it's important: Security concerns - an adversary could target, kidnap, kill, etc. users. Privacy concerns - user location data...

Image: Shutterstock What's new: An interesting form of autonomous navigation based on nature. Why it's important: Autonomous systems have an important place in an overall PNT architecture. For some applications they are the best/only method. This system uses just 42...

Image: RNT Foundation What's new: Draft updated PNT cyber guidance from NIST. They are seeking public comment and input. Why it's important: PNT and cyber are well intertwined. PNT is an essential tech infrastructure so protecting it from malicious cyber effects is...

Image: Shutterstock What's new: A webinar featuring our colleague Matt Shirley. Matt is a professional port pilot and has some interesting insights on maritime reliance on GPS/GNSS, how things could go wrong without resilient PNT, and how things could go better with...

Image: Aircraft near Delhi, India being spoofed 5 Nov 2025 - GPSWise What's new: The International Federation of Air Line Pilots’ Associations (IFALPA) called for actions to combat GNSS disruption from ICAO, nations, air navigation service providers, manufacturers,...

Image: Shutterstock What's new: Discussion of system "resilience," especially in the context of PNT. Why it's important: We sometimes hear folks ask for a definition of "resilience." Many are genuinely seeking to define terms to help in identifying solutions. Others...

Image: RNT Foundation What's new: Our recent annual meeting was a huge success featuring: Comments from Department of Defense/War Assistant Secretary for Space Policy, Hon. Marc Berkowitz, Comments from Department of Transportation Acting Assistant Secretary for...

Image: Shutterstock What's new: The UK government's formal announcement about their MOD's contract for a tactical/ deployable eLoran capability. Why it's important: This is the first instance we know about of a western military/ government actually choosing a...

Image: Ship fire after collision during GPS disruption - Singapore Maritime Security Agency What's new: A discussion of the importance of GPS/GNSS to maritime - especially in ports.  This is the first discussion of its type we have seen. Why it's important: Safety:...

Image: Hidden TTY on Reddit What's new: Starlink announced it will no longer allow users to access location information on their terminals. Why it's important: Some users were able to use that information to navigate in GNSS denied environments. What else to know:...

Image: DOT Volpe Center What's new: The John A. Volpe National Transportation Center in Cambridge, MA, is seeking a Director to lead the Center for Infrastructure Systems and Technology within the Office of the Assistant Secretary for Research and Technology (OST-R)....

Image: Youtube - Fatal Azerbaijan Air crash after being shot at by Russian forces due to GPS jamming and no ADS-B identification What's new: The Secretary General of the International Civil Aviation Organization addressed the World Overflight Risk Conference in...

Image: Copilot AI What's new: We understand the UK Ministry of Defence (MOD) recently awarded a contract to a UK-led team to create a deployable PNT solution based on eLoran to be delivered over the next two years. The intent is that, once delivered, the system can be...

Image: Shutterstock What's new: A request for information (RFI) from DHS about GNSS-independent, long haul fiber, precise time. Why it's important:  Time and timing, of course, are really important. Of P, N, & T, timing is the one ring that rules them all. RNT...

Image: Traficom What's new: Finland reporting aviation, maritime, and cellular impacts from GNSS interference. Why it's important: The report show the different impacts of line-of-sight signals on users. Regardless of the differences, there are impacts, the results of...

Image: Mr. Bruno Mediate - US Space Force What's new: Official cancellation of the OCX program. Why it's important: Space Force can stop futzing with as system that has already consumed far too much time and money and move on with improving AEP, the current ground...

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...