How GPS works? Trilateration explained

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.

The Arctic magnetic pole does not move anymore. It runs, faster and faster. In recent years, even faster than expected. Therefore, geo-researchers have now had an unscheduled change to their world model and adjust their calculations, so that navigation with compass and other navigation aids such as a Pilot Plug, used by pilots around the world, continue to work.

This book was only available in some areas, now the author has created an e-book version. Furthermore it´s available on amazon as a paperback.

Completely new book on Ship manoeuvring techniques based on new revealing facts which have been brought to light. Must read for all the mariners to understand the behaviour of ships and how to control her behaviour during manoeuvring.

During a meeting on 4 December 2024, the International Hydrographic Organization Nautical
Information Provision Work Group (IHO NIPWG) held a vote on the new Guide for Nautical
Data 2.1. The guide was unanimously endorsed.

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.

Video de presentación del proyecto Pilots4.0 para la iniciativa Ports4.0. Proyecto P21-Pilots4.0

On 22nd February 2021, Colombo Dockyard PLC (CDPLC) delivered a Pilot Launch, the third Pilot Launch, as per an Agreement signed with Sri Lanka Ports Authority (SLPA) on 1st February 2019.

According to an article from "Safety at sea" the Korean Investigation Authority has published the first report about accident of container vessel "Milano Bridge" on April 6th 2020 in Busan.