Author Description

The Federal Radionavigation Plan (FRP) reflects the official positioning, navigation, and timing (PNT) policy and planning for the Federal Government. Within the construct of the National PNT Architecture, the FRP covers both terrestrial- and space-based, common-use, federally operated PNT systems. Systems used exclusively by the military are covered in Chairman, Joint Chiefs of Staff Instruction 6130.01, CJCS Master Positioning, Navigation, and Timing Plan (MPNTP) (Ref. 1). The FRP does not include systems that mainly perform surveillance and communication functions. The policies and operating plans described in this document cover the following PNT systems: Global Positioning System (GPS) Augmentations to GPS Instrument Landing System (ILS) Very High Frequency (VHF) Omnidirectional Range (VOR) Distance Measuring Equipment (DME) Tactical Air Navigation (TACAN) Nondirectional Beacon (NDB) Internet Time Service (ITS) Radio Station WWVB signal Two-Way Satellite Time Transfer (TWSTT) Network Time Protocol (NTP) Automatic Dependent Surveillance - Broadcast (ADS-B)