Blog Editor's Note: We are VERY pleased to send this along from the University of Texas website about our friend, the good Prof. Humphreys. Among his many achievements, last year Todd led a team that used a single sensor aboard the international space station to...

Blog Editor's Note - Good "awareness" article in Ars Technica discussing offerings from Regulus. Full disclosure - Regulus is an RNTF corporate supporter. Other companies, including other RNTF supporters, also offer solutions & mitigations for jamming and...

The USCG Navigation Center continues to receive and post reports of problems with GPS reception from around the world. Our recent check of the site showed numerous reports from the eastern Mediterranean, as expected, along with a goodly number scattered around the...

Blog Editor's Note: This article complements the one we posted yesterday and provides some additional information.  One correction to the below - we understand that there will be multiple awards under the RFP and that each will be from $700,000 to $2M.  DOT Ready to...

Blog Editor's Note: The author of the below article is the President of the RNT Foundation. US DOT moves aggressively on GPS backup, RFP this month September 4, 2019  - By Dana Goward The last two U.S. presidential administrations failed to follow through on promises...

Image: Wikimedia Commons Strange GPS in Hong Kong – China Government Responsible? RNTF Original Report, 4 Sept 2019   Reception of satnav signals in major metropolitan areas is often problematic. Tall buildings can block the view of the sky or reflect GNSS...

Visitors look at a model of the BeiDou Global Navigation Satellite System in Nanjing, East China's Jiangsu Province. File photo: Visual China Group   Blog Editor's Note: We reported on this cooperation last month and assessed the concerns for GPS and America. It...

Thanks to RNTF member John Hartzell for sending this along, and to Jeff Bacon for great naval humor since 1986. Best wishes for a wonderful Labor Day weekend!

This FAA graphic shows locations and altitudes where GPS interference testing scheduled for Aug. 30 and Sept. 5 could affect GPS-based aircraft navigation and ADS-B operation.   Blog Editor's Note: A very powerful graphic above showing how a jammer at sea level...

Blog Editor's Note: Some interesting reporting on remarks made at the National Space Council last week. Much of what the report says seems to have been sourced from somewhere other than the DoT rep's comments. We obtained a transcript of his remarks and provided them...

Beidou satellite inside the payload fairing and ready for stacking at Xichang in 2016. Photo: China Aerospace Science and Technology Corp. Blog Editor Notes: The below was drafted and submitted before we saw the item we posted yesterday about China's efforts to push...

Blog Editor's Note: A very disturbing article for those (like us) wanting GPS to remain the "gold standard" for GNSS. Some of the more alarming items in this piece: As of June 28, Chinese satellites were observed more frequently than GPS satellites in 130 of 195...

A headline in "The Telegraph" this week read "UK seeks 'Five Eyes' alliance on satellite rival to EU's Galileo." The United Kingdom has a golden opportunity with this initiative to be a world leader in PNT. To capture this title, they must be innovative and not just...

Blog editor's Note: A couple notes and questions about the issue described in the article - It seems very much like the long standing controversy about whether or not the FCC should allow Lightsquared/Ligado to operate in an adjacent band.  The laws of physics have...

Blog Editor's Note: This is a great example of making a system more resilient with a better user interface. As a helicopter pilot, at every new duty station it would take me several weeks to memorize the latitude and longitude of a new base so I could program the...

Blog Editor's Note: Great effort and expense is taken to put satellites in space and transmit quality GNSS signals.  Yet when these signals arrive on Earth, too often they are made useless by interference, or worse, corrupted into hazardously misleading information. ...

Blog Editor's Note: The author is President of the RNT Foundation GPS Jamming and Spoofing Reported at Port of Shanghai BY DANA GOWARD 2019-08-13 18:40:25 Reports have been filtering through the maritime community over the last month about strange AIS and GPS readings...

Image: New board members Jeff Hathaway and Pauline Cook join President Dana A. Goward recognizing Senators Cruz and Markey for their work on and passage of the National Timing Resilience and Security Act of 2018. The Resilient Navigation and Timing Foundation...

Image: Iranian patrol boat and British-flagged oil tanker Stena Impero: Associated Press Blog Editor's Note:  Below are a warning published by the US Maritime Administration, and a press report that quotes an unnamed US defense official. Long time readers will discern...

Image: Aircraft taking off Ben Gurion Airport Nov 2018 - Flash90 Blog Editor's Note: While it seems like two months is a long time to have this problem, it is good to remember that it took US officials three months to resolve the first problem at Newark International...