Globalstar, Inc. and Echo Ridge, LLC have informed the U.S. Department of Transportation (DOT) that the companies have developed and are prepared to participate in and support a live field demonstration of a stand-alone positioning, navigation, and timing (PNT) capability that can provide accurate and reliable PNT services to backup and/or complement GPS in case of GPS unavailability or unreliability.

Source: Globalstar, Echo Ridge offer to demo GPS backup technology