Cesium possible future of R-mode coverage

Printer-friendly versionPDF version

This is a demo page showing the nominal range of current, known by IALA, DGNSS and AIS stations as registered in their documents.

Marine beacon coverage prediction
IALA provide a Guideline on marine beacon coverage prediction. Coverage is determined through the consideration of a number of factors including propagation effects, noise and interference.  The reader is advised to refer to IALA Guideline 1119 for further information.

The reason for this page is a new development called R-mode where current infrastructure could be used for a terrestrial backup system of GNSS systems such as GPS and Galileo. The satellite GPS systems are vulnerable for some atmospheric interference where a backup system could ensure getting to a safe holding position until the problem is solved. Another terrestrial system is eLORAN.

Green are current operational sites and yellow are the planned or temporarily not operational sites that could be used for R-mode in the future.

These systems could be used also as a backup timing (and positioning) system.

Below a view of the nominal range of the stations. These are, if something changed in the database, updated every hour. It could be you should refresh you browers cache with ctrl-F5 to see the latest updates.