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Radio navigation or radionavigation is the application of radio frequencies to determine a position of an object on the Earth Like radiolocation, it is a type of radiodetermination.

The basic principles are measurements from/to electric beacons, especially

Combinations of these measurement principles also are important -- e.g., many radars measure range and azimuth of a target.

more can be found at Wikipedia or

This site provides a lists and views of IALA DGNSS beacons that are copied from the IALA website.

  1. A list of DGNSS message types;
  2. A list of DGNSS IALA beacons;
  3. A overview of DGNSS IALA beacons;
  4. A overview of the coverage of DGNSS IALA beacons that could be used for R-mode.