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
GPS spoofing strikes Delhi airport: Disruptive signals force flight diversions, pilots warned – MoneyControl
Image: GPS Spoofing near Delhi on 5 Nov 2025 displayed on GPS Wise (https://gpswise.aero/) What's new: Significant GPS spoofing and air traffic disruption in and around India's capital. Why it's important: Indira Gandhi International Airport in Delhi is India's...
How to maximize the resiliency of PNT – Breaking Defense – Opinion
Image: Shutterstock What's new: An Op-Ed about the Defense Department's efforts with resilient PNT. Why it's important: The author makes a number of excellent points about the department's lack of focus and leadership in PNT. What else to know: GAO has said similar...
ICYMI – NIST wants to hear from you on PNT & Cyber
Image: Shutterstock What's new: The National Institute for Standards and Technology (NIST) is asking for comments about how to align its PNT Profile process with its Cybersecurity efforts. Why it's important: A least a couple reasons. First, it is good to have these...
Marking time in the 1200’s
Image: RNT Foundation What's new: While visiting Ragusa, Italy, we discovered a way of marking the hours of the day we had not heard of before - Italic hours which count the number of hours since the last sunset. Why it's important: Timekeeping has been essential to...
GPS saves 190 airline passengers – Daily Mail
Image: Shutterstock What's new: A report that GPS-enabled terrain warning saved the lives of 190 airline passengers on the 2nd of February. Why it's important: This incident shows how important these safety systems are, and the criticality of them working properly....
