L2C

GPS ground antenna at Schriever Space Force Base in Colorado. (Image: U.S. Air Force)

March 6, 2023

Directions 2023: Advancing GPS to Meet the Future

By Michael J. Dunn

April 28, 2020

GPS III ‘Magellan’ starts signal transmission

By Peter Steigenberger, Steffen Thoelert, Oliver Montenbruck, and Richard B. Langley

SVN49 in space (artist’s rendering). The signal anomaly from SVN 49 alerted researchers to new possibilities in analysis and monitoring.

August 12, 2015

L2C and Next-Generation Smart PNT Receivers

April 24, 2014

Activation of Pre-Operational CNAV Message Set for April 28

By GPS World Staff

March 12, 2014

PNT Advisory Board Hears Air Force CNAV Plan

By GPS World Staff

March 5, 2014

Comment Period on Pre-Operational CNAV Message Opens

By GPS World Staff

December 17, 2013

Air Force Directs Early Civil Navigation (CNAV) Message-Populated L2C and L5 Signals

By GPS World Staff

July 8, 2013

2C or Not 2C: The First Live Broadcast of GPS CNAV Messages

By GPS World Staff

June 17, 2013

GPS CNAV Civil Capabilities Now Being Tested

By GPS World Staff

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