1097 - 05/16 - Use of GPS by vessels - Worldwide
The now universal use of GPS by vessels of all description has made a significant contribution to the safety and accuracy of marine navigation.
However, continuing news reports of alleged jamming of GPS signals by North Korea, as well as the potential for other sources of signal interference is of widespread concern to governments and to the shipping and aviation industries as a whole.
These reports serve to highlight the risk of vessels being solely reliant on GPS for position fixing and reinforce the importance of utilising all available aids to navigation as required by SOLAS and STCW regulations. In particular, navigating officers should be encouraged to practice traditional methods of navigation, including celestial observations.Source of Information