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
It’s Complicated – Reports that EU leader jammed Saturday in Baltic, but not Sunday in Bulgaria – FlightRadar24 & GPSWise on X
image: FlightRadar24 It's Complicated What's new: Reports based on ADS-B seem to contradict official statements and press reports about the EU leader's flight into Bulgaria Sunday, Data from FlightRadar24 shows a good GPS signal and a close to on-time arrival. BUT...
‘You can no longer fully trust your onboard systems.’ Pilots say airline hacking attacks now a daily problem – Irish Times
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...
Russian drones using Chinese CRPA antennas – United24 Media
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...
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 applications....
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. And they are...
