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UrsaNav’s family of receiver-based products support turnkey eLoran solutions with applications in navigation, precise timing, system control, and differential Loran reference equipment.
Our eLoran suite consists of the smallest size, weight, and input power technology currently available. Our partnership with Nautel allows us to deliver unmatched levels of efficiency and redundancy in the smallest, yet most sophisticated, fully solid-state eLoran transmitters available. When coupled with our Timing and Frequency, Command and Control, Differential Reference Station, and ASF Survey equipment, you are choosing a turn-key solution to your complementary PNT needs.
Coast-to-coast, and far out to sea, our best defense against GNSS vulnerabilities is to have an alternative Positioning, Navigation, and Timing capability in place now.
UrsaNav’s alternative Positioning, Navigation, and Timing (PNT) solutions ensure that ships equipped with eLoran receivers can navigate safely in some of the busiest shipping regions around the world.
As the market leader in Low Frequency (LF) Positioning, Navigation, and Timing (PNT), we have developed high-powered, low-frequency, ground wave technology that offer the most reliable, scalable, and future-proof solutions available. The utilities that make up our lives – telecommunications, energy, finance, and transportation – depend on it.

Leaders in what’s now. Innovators of what’s next.

GPS is the gold-standard for the provision of Positioning, Navigation, and Timing (PNT). When GPS/GNSS is available and trustworthy, you should use it. What do you do when it’s not available or not trustworthy? As the global market leader in continent-wide Complementary PNT solutions, we have developed high-power, Low-Frequency (LF), ground wave technology that is the most reliable, scalable, and future-proof available. Besides PNT, we can also provide phase, frequency, and azimuth, and even 3rd-Party Data Channel solutions. Our technology is fully interoperable with, yet completely independent of, GPS/GNSS. We offer “sky-free” PNT directly to users, or as an enabler of other technologies.

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  • Our Technology



    Our personnel contributed to the development of Enhanced Loran (eLoran) in the U.S., and around the world, and the hardware, software, and firmware technology that makes it happen.


    We have been involved in every major technology improvement in Loran-C since 1975, and our personnel have been involved in installing, upgrading, modernizing, and/or relocating almost every Loran-C facility in the world.

    “T3” Solutions

    Looking for Temporary, Transportable, or Tactical ("T3") solutions? We've "been there and done that" as well.


    What's the future look like after eLoran? We've been thinking about the Next Generation of LF for years, and have already developed the concepts and the technology for the next phase of Loran-like, but not necessarily Loran, PNT solutions.
  • Announcing a Brand New World of Opportunity

    We are renewing our long-standing commitment to make your job a little easier. Our now focused capabilities result in the evolution of what's next with Geodesicx and Tagence as new standalone businesses, and the Low-Frequency Solutions division bearing the UrsaNav name as all its own. The character of these three companies is still epitomized by our unrivaled commitment to you, our customers. As part of our vision to provide executive opportunities for senior leaders, we are excited to look forward with a leadership team who are charged with continuing the vision of solving real-world problems and improving customers’ operational capabilities.