Coverage
The surface area or space volume in which radio-navigation signals are adequate to permit the user to determine position to a specified level of performance.
Source: Nick Ward, IALA e-Nav committee vicechair, March 2009
The surface area or space volume in which radio-navigation signals are adequate to permit the user to determine position to a specified level of performance.
Source: Nick Ward, IALA e-Nav committee vicechair, March 2009
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM