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
Assured PNT Summit 7 & 8 April 2026 in D.C.
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…
GPS interference comes to Bulgaria – Putin’s punishment?
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…
Putin has built a secret weapon in Kaliningrad – and Denmark could be in the firing line – TV2
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….
Impact of L-Band MSS ‘Direct-to-Device’ Operations on GPS – NTIA request for comment
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’…
Farmers Say the Sun Turned Their John Deere Tractors Into ‘Demon-Possessed’ Machines – Popular Mechanics
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…
