Image: Shutterstock What's new: After Russia forces fired on an Azerbaijan Airline plane causing it to crash land with the loss of 38 lives, the Russian Federal Air Transport Agency issued a bulletin about using GNSS in conflict zones.  It recommends more pilot...

Image: Shutterstock What's new: We heard back from the FAA yesterday about our GPS interference report (see yesterday's post)  the SAME DAY - and it was a SUNDAY!  They said the GPS interference the aircraft we were traveling on experienced was likely from a NOTAMed...

Image: GPSJam.org What's new: The guy who writes all the time about GPS interference got to experience it, in a small way.  Why it is important: The interference seems like it has been on-going for several days but the FAA has not issued a NOTAM about it. That is a...

Image: Shutterstock What's new: A press item about disruption that is not about aviation or maritime. Why it's important:  All kinds of applications and infrastructures can be impacted. We have mostly seen disruption effects in aviation and maritime because the...

Image: Shutterstock What's new: A comprehensive review of LEO PNT projects around the world. Why it's important: LEO PNT has enormous potential. And there is so much going on it is hard to keep track. We have been seeking a compendium like this for years! What else to...

Image: Loran Tower circa 1995, US Coast Guard Note: This article appears in the January print edition of GPS World and is an expanded version of one that appeared in November on their website. We are posting it here because: It has additional and updated information,...

Image: RNT Foundation What's new: The Department of Transportation recently posted its PNT Strategic Plan. The document is dated December 2024, but it was only posted on the 17th of January. Why it's important: The document lets everyone know how and what the...

Image: FullDrone.com What's new: Chinese company DJI, the maker of about 70% of consumer-grade drones, sent a software update last week removing default geofences from its products used in the United States. Why it's important: Geofencing had prevented these drones...

Image: Defense Strategies Institute What's new: Defense Strategies Institute, an RNTF member, announced its annual Assured PNT Summit. Why it's important: This event is unique in our experience as it is held in Washington, D.C. and is able to attract some speakers who...

Image: Shutterstock What's new: More efforts to use Earth's magnetic field to navigate. This time leveraging AI. Why it's important: Navigating this way does not rely on RF signals that could become unavailable. And no additional infrastructure is required. What else...

Image: Shutterstock What's new: An article about a celestial nav system that can be strapped on drones. Why it's important:  It is relatively easy to jam or spoof GNSS signals on most drones making them ineffective. And we know of instances when accidental...

Image: Shutterstock Vol 35 No 1 Winter 2025 2024's PNT Advisory Board U.S. endangered, leadership needed Massive increases in threats and disruption of GPS services over the last four years, advances by America’s competitors, and little progress on improving national...

Image: Shutterstock What's new:  Two items, possibly related. Info that Russia is experimenting with PNT from cellular on its drones in Ukraine for GPS-denied environments. An item about China creating a military 5G network that can be deployed on mobile assets. Why...

Image: Shutterstock What's new: Another report about the serious impacts of GPS jamming and spoofing in aviation. Why it's important: Eventually people are going to die. If they haven't begun dying already. We are confident Russian forces did not intend to shoot down...

Image: Shutterstock What's new: Russia is using Chinese anti-jam antennas on their Iranian-made drones to attack Ukraine. These antennas counter much of the Ukrainian jamming they use to protect themselves. Why it's important: Drone warfare has become an major part of...

Image: GPSJam.org & RNT Foundation What's new: Persistent GPS interference detected in and around Sofia, the capital of Bulgaria beginning on 12 December 2025. Why it's important: PNT signals from GPS underpin all kinds of critical infrastructure and applications....

Image: Russian Space Systems What's new: An interesting look at one of the devices in Kaliningrad that is being used to cause so much trouble. Why it's important: Well, more interesting than important, maybe. The impacts of using this thing are important. And they are...

Image: Shutterstock Blog editor's note: This is important. If you have expertise in this area, you really should comment. Below are excerpts from the NTIA notice in the Federal Register. Access the full notice here. Impact of L-Band MSS ‘Direct-to-Device’ Operations...

Image: Shutterstock What's New: Some feedback on how solar activity disrupted GPS signals and impacted farmers. Why It's Important: 80% of farmers use GPS in some form or fashion to raise their crops. About one third of the food produced in the U.S. is from highly...

Image: Shutterstock What's new: A commercial passenger aircraft was shot down in an area where there was GPS jamming and likely spoofing. Why it's important: GPS is essential for (1) safe aircraft navigation and (2) ADS-B the system that let's air traffic controllers...

image: Shutterstock What's new: Report from Zurich University of Applied Sciences identifying eDME, eLoran, and LDACS-NAV as three systems that should be implemented to ensure promptly achieving safe and efficient Performance Based Navigation. Why it's important:...

Image: Shutterstock What's new: Denmark bought weapons from Israel that have "civil" GPS built in. So, no M-code. Why it's important: Electronic warfare can easily and greatly degrade the effectiveness of such weapons, as the Russians have demonstrated in Ukraine....

Image: Shutterstock What's new: The Senate Homeland Security Committee becoming interested in the topic. Why it's important: DHS has a role to play, even if they are not a co-chair of the national executive committee. See SPD-7. What else to know: DHS has done some...

Image: Shutterstock What's new: The idea that since increasing interference looks to continue, every nation will be driven to have some level of sovereign PNT capability that is independent of but can cooperate with GNSS. Expediting that process through international...

Image: InvestigateTV What's new: Coverage of the issue by Gray Media which owns 113 TV stations (which all have news rooms) across the US. Why it's important: One way to improve awareness among senior leaders who can fix the problem is by educating the public. What...

Image: YouTube/"Animal House" by National Lampoon GPS is a great system. It is the cornerstone of our PNT architecture and will be for decades. We must do everything we can to protect GPS and ensure it performs as well as possible. We need more than GPS so it isn't...

Image: IAIN's John Harrison Award, RNT Foundation photo Top International Award for RNT Foundation's Goward ALEXANDRIA, VA, UNITED STATES December 11, 2024 EINPresswire.com/ The Resilient Navigation and Timing Foundation board of directors is pleased to announce the...

Image: Picture taken from @whyyoutouzhele "X" account What's New: Huge drone show in Quanzhou, Fujian Province, China by a famous artist was destroyed by "jamming" with hundreds of drones crashing on land and in the water. Why It's Important: The incident shows:...

Image: Shutterstock What's New: Some pretty detailed info about Russian plans for nukes in space. Why It's Important: It could radically alter daily life on the planet as we know it. The weapon could cause global warfare, economic collapse, famine... What Else to...

Image: International Air Transport Association What's New: An International Air Transport Association report showing the rate of GPS loss events per 1,000 flights increased by 65% in the first half of 2024 over that of 2023. Graph from: IATA's "Global Navigation...

Image: U.S. Dept. of Transportation What's New: U.S. DOT's Karen Van Dyke gave a great presentation to the PNT Advisory Board on the 5th of December. It included information about a multi-source, global GPS interference display being developed. Why It's Important:...

Image: Shutterstock What's New: The U.S. Department of Transportation has announced it will finance another round of test and evaluation of complementary PNT technologies. Why It's Important: There are lots of technologies out there. U.S. DOT is responsible for civil...

Image: Shutterstock What's New: An announcement by China of plans for an even more advanced version of BeiDou. Improvements will include satellites at LEO, MEO, and GEO that are a formal part of the BeiDou structure. Why It's Important: Having the world's best PNT is...

Image: Interference around Dallas Airport 18 October 2022 (GPSJam.org) What's New: An opinion piece reminding us of the need to be able to detect a problem before we can solve it. Why It's Important: Interference with GPS signals can cost lives. It can also facilitate...

Image: Shutterstock What's New: A truck hijacking using GPS spoofers that made the news because it was of celebrity chef Guy Fieri's brand of tequila. Why It's Important: It illustrates one of the uses of relatively inexpensive, simple to use GPS  spoofing devices....

Image: Lord Patrick Vallance, UK Science Minister courtesy of No. 10 Downing Street What's New: Our summary of outcomes from the RIN's UK PNT Leadership Seminar last week. Why It's Important: Several significant announcements. They are doing stuff! What Else to Know:...

Image: RNT Foundation What's New: An announcement by Hellen Systems and Arqiva that they are offering a commercial eLoran service in the United Kingdom, Why It's Important: It is another indication that alternative PNT is becoming more desirable and commercial...

Image: Royal Institute of Navigation What's New: The Royal Institute of Navigation (RIN) has posted a series of tools to help explain PNT and the need for resilience to those outside the community, and to help organizations evaluate their readiness for GNSS...

Image: U.S. Air Force What's New: The Air Force is making progress with it's Modular Open Systems Architecture (MOSA) approach to navigation. Why It's Important: Building a navigation system (like GPS) into an aircraft, weapons, or other system means that to change or...

Image: Shutterstock What's New: The latest report from GAO about DoD's leadership and management of the GPS program. Why It's Important: Operation of GPS and its associated upgrades and research efforts cost upwards of $2B/yr. The Government Accountability Office...

Image: European Commission What's New: Another move by Europe reaffirming their assertion that PNT from space-based is not enough. Why It's Important: Implementing such a system will make participants much more resilient, safer, and support economic (especially tech)...

Image: SKAI Data Services What's New: Another round of GPS disruption by North Korea. Why It's Important: GPS spoofing causes receivers to have hazardously misleading information that can cause or contribute to accidents. What Else to Know: South Korea continues to...

Image: Voice of America Expert Opinion GPS Does Need a Backup, Terrestrial Is the Answer – But Which Terrestrial? A key effort to protecting America, and GPS by making it a much less attractive target, is to establish a terrestrial backup system. Dana A. Goward Nov 8,...

Image: The Hudson Institute/Youtube What's New: A panel discussion at the Hudson Institute, in person, live-streamed, and recorded. Why It's Important: This was an entirely new idea for lots of attendees, including some from international development, transportation,...

Image: NASI, Timing Solutions' Dr. Zdenek Chaloupka & NSAI's David Fleming What's New: Ireland leading the way in authenticating GNSS signals to counter spoofing. Why It's Important: Spoofing is increasingly becoming a problem threatening the safety of life and...

Image: Shutterstock What's New: More popular dissemination about what has been a niche issue. Why It's Important: The more diverse audiences are exposed, the greater the probability of solutions. What Else to Know: The author is Chief Marketing officer at Ubix.AI -...

Image: NASA What's New: A short piece from the Center for Strategic and International Studies (CSIS). Why It's Important: This paper helps raise the issue to the policy level where it has long belonged but not been considered. CSIS has a lot of credibility, especially...

Image: Shutterstock What's New: A report by the Quantum Economic Development Consortium about the potential to use quantum sensing for PNT. Why it's Important: Quantum clocks can keep very, very precise and accurate time. Quantum sensors can act like inertial devices...

Image: GPS Patron What's New: These issues being discussed in more and more forums.  In this case as a spectrum  security issue.  It is also a cyber issue. An electronic warfare issue, a navigation issue, a timing issue... Why It's Important: This is everyone's...

Image: Shutterstock What's New:  As far as we know, this is the first public discussion of the likelihood China can, and Russia will be able to, spoof GPS and Galileo from space. Why It's Important: Jamming and spoofing from space can have far greater impact and be...