How does GPS work?

Of course, as a Nautical Specialist, I also deal with the international discussion on the advantages and disadvantages of satellite-based navigation, e-navigation and conventional terrestrial and astronomical navigation.

In my announced sequel, the second part of GPS, it is primarily about the technical and physical operational and functional limitations to which GPS is subject. These limitations, in part, have serious implications for the accuracy of GPS, and even go as far as limiting the functionality of GPS in its functions or even making it impossible. In doing so,

The vulnerability of GNSS in shore-based use is definitely different and to be regarded as much more risky than on the high seas.

Professor Patrick Hudson discusses safety culture and leadership.

Ships have reported an increasing number of cases of significant GPS interference and jamming in recent months. The geographic areas with more than one reported incident include the eastern and central Mediterranean Sea, the Persian Gulf, and multiple Chinese ports.

On the occasion of the Maritime Safety Week (July 4-10), UK MAIB’s inspector Bill Evans refers to the issue of unsafe pilot ladders, a concern that has been regularly voiced by the industry.

Australian Capital Territory Section Technical Meeting
November 2021, online via Zoom

There are many things in both our everyday and professional lives which we take for granted and never question the origins of, an example of this might be the IMPA recommended ‘pilot mark or pilot line’, which is sometimes seen on the side of vessels indicating where a vessels freeboard exceeds 9 metres.

Escada usada pelos práticos soltou durante entrada do Maersk Letícia em Itajaí. Saiba mais: http://nsctotal.com.br/
Crédito: Reprodução, Redes Sociais
Container ship MAERSK LETICIA, IMO 9526916, dwt 106043, capacity 7450 TEU, built 2011, flag HK, manager MAERSK LINE A/S.

This Pilot Advisory Note (PAN) advises AMSA-licensed coastal pilots and pilotage providers about the existence of counterfeit pilot ladders and associated certification.