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

European Space and Chinese Authorities Both Progressing with eLoran
Image: European Space Agency International eLoran Standardization Workshop What’s new: The European Space Agency posted about an international eLoran standardization workshop it hosted. At about the same time Chinese authorities pre-released a paper about integrating…

GPS Is Vulnerable to Attack. Magnetic Navigation Can Help – WIRED
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…

Jamming-proof celestial navigation for drones – Spatial Source (devil is in the details)
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…

‘U.S. endangered, leadership needed’ 2024’s PNT Advisory Board – ION Newsletter
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…

PNT from 4G & 5G – Russia testing in battle, China likely developing
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….



















