USCG announces CRADA for alternative to GPS timing

By Brian at January 12, 2012 18:37
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In the Federal Register on January 11, 2012 the Coast Guard announced it was establishing an Cooperative Research and Development Agreement (CRADA) with UrsaNav, Inc. "to research, evaluate, and document... a wireless technical approach for providing precise time using U.S. government facilities and frequency authorizations."

The announcement said they plan to use old LORAN station locations and four frequency ranges:

  • LORAN frequencies (90-110 kHz)
  • dGPS frequencies (283.5-325 kHz)
  • HA-dGPS frequencies (435-490 kHz)
  • former international calling and distress frequency (500 kHz)
It will be interesting to see how this testing goes and to find out more about this technology. There has been a lot of speculation abut what the former LORAN and 500kHz distress frequencies would be used for and a lot of hopes they'd be used to expand communications bandwidth available for e-Navigation uses. Timing information is certainly a valuable component of e-Navigation and a reliable backup to GPS for timing is needed.