The RNT Foundation is a public benefit scientific and educational charity, 501(c)3
Protect the Frequencies – By preventing interference
Toughen Receivers – With readily available technology
Augment Services – With difficult to disrupt terrestrial signals
What to do? Some recommendations.
eNewsletter Archives
From Our Blog

“DOT must establish a terrestrial backup for GPS” – Photo from 7 years ago today
Image: RNT Foundation image, June 2019 What’s new: A bittersweet anniversary. Seven years ago today members of the RNT Foundation Board of Directors visited with Senators Cruz and Markey to thank them for their sponsorship of the National Timing Resilience and…

Global LEO PNT Report – Frontier SI
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…

European Aviation Action Plan for GNSS Interference – EASA & Eurocontrol
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…

When 5G networks bolster satellite navigation – GPS Daily
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…

Users should pay for safety – Reason Foundation
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…



















