The Potential of Loran-C Stations as GNSS Monitoring Sites

George T. Gunther

Abstract:	Existing Loran-C and Omega stations are ideal Global Navigation Satellite System (GNSS) monitoring sites. This is particularly true for North America. Each station is equipped with a set of three cesium oscillators, redundant communications capabilities, UPS and autostart emergency power. Loran-C stations/chains and Omega stations are synchronized to UTC. With respect to Loran, as part of the system operation there are master Control Stations with full-time watchstanders and remote command/monitoring access to each station. The Control Stations are also directly linked to the NOTAM and Notice to Mariners systems in addition to the GPS Information Center. This paper explores the potential for these stations as primary sites to support a U.S./North American GNSS integrity monitoring and Wide Area Differential GPS (WADGPS) network Although the discussion is directed towards the U.S. its potential application may also be practical at Loran and Omega Stations throughout North America and the world.
Published in:	Proceedings of the 1993 National Technical Meeting of The Institute of Navigation January 20 - 22, 1993 Parc 55 Hotel San Francisco, CA
Pages:	449 - 458
Cite this article:	Gunther, George T., "The Potential of Loran-C Stations as GNSS Monitoring Sites," Proceedings of the 1993 National Technical Meeting of The Institute of Navigation, San Francisco, CA, January 1993, pp. 449-458.
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