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How GPS works? Trilateration explained


published on 4 July 2019 184 -

How GPS works? Trilateration explained
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Article GPS (Part 1) - Structure, mode of operation, technical and physical fundamentals of GPS

by Capt. Gunter Schütze, Thailand/Germany - published on 30 January 2020

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.

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Article GPS (Part 2), physical and technical errors of GNSS - an error analysis

by Capt. Gunter Schütze, Thailand/Germany - published on 26 February 2020

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,

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Article GPS (Part 3) - Accidental interferences and intended Interferences by extern technical sytems

by Capt. Gunter Schütze, Thailand/Germany - published on 6 May 2020

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

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Article Human Error in Pilotage Operations

published on 3 December 2024

This article was first published back in September 2021: Pilotage operations require close interaction between human and machines. This complex sociotechnical system is necessary to safely and efficiently maneuver a vessel in constrained waters.

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Video Why Can't Ships Reverse Around Corners?

published on 20 September 2024

This video explores the question of why ships are so difficult to manoeuvre in reverse.

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Article Pilots’ Pocket Guide and Checklist - Second Edition released

published on 19 January 2022

The British Tugowners Association (BTA) in collaboration with the UK Chamber of Shipping has launched its new Pilots’ Pocket Guide and Checklist.

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Video Port Ash Australia: Ship Handling Training & Research Centre

published on 28 January 2022

RINA ACT Technical Meeting
23 November 2021
Port Ash Australia: Ship Handling Training & Research Centre
By A. Beazley, Port Ash, Australia

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Video Understanding Plimsoll Line

published on 17 February 2020

Maritime Education

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Article PTR Holland Group Joins RightShip’s Zero Harm Innovation Partners Program

published on 19 August 2025

PTR Holland Group partners with RightShip to elevate pilot transfer safety through the Zero Harm Innovation Partners Program.

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Video Battling the North Sea: Pilot Transfers in choppy seas

published on 13 November 2025

Join us out in the North Sea as we take on another challenging day aboard the pilot boat, transferring pilots to and from massive ships in choppy seas. 🌊 Watch as we battle the swell and spray, timing every approach perfectly to safely board and disembark pilots onto moving vessels in tough conditions. From cargo ships to car carriers, this video gives you a front-row seat to life at sea — where precision, teamwork, and nerves of steel are essential. 📍 Filmed off the North East Coast of...

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