UrsaNav® | 1,794 followers on LinkedIn. Leaders in what's now. Innovators of what's next. | UrsaNav®, LLC. is the world’s leading supplier of Low-Frequency (LF) Positioning, Navigation, and Timing (PNT) products and services, such as Loran-C/D, eLoran, and LFPhoenix™. We also provide repair, replacement, and “Legacy System Transformation™” services to deployed Loran technology worldwide. UrsaNav® continues to invest in innovative LF-based PNT solutions, including patented encryption technology and alternative modulation and waveform techniques.