DigiGov Central

GPS Alternatives for Transportation Department

The Department of Transportation is on the hunt for alternatives to GPS to better complement and support the nation’s transportation system with reliable position, navigation and timing (PNT) services.

The transportation system depends on position, navigation and timing methodologies.  GPS relies on signals broadcast from satellites in medium Earth orbit (MEO), signal strength at the receiver is low and thus vulnerable to intentional and unintentional disruptions.

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