The CAT III is a tool for a pilot performing the most challenging operations. It is extremely accurate and is now used as an alternative to laser docking systems. The CAT III is also a perfect tool for berthing very large ships such as VLCC’s or LNG tankers, precise positioning in docks and locks and for providing the highest reliability in unfriendly environments such as poor satellite coverage or when docking under cranes. The CAT III category is for instance used by the British Army for handling “dead” ships and submarines in confined waters with strong tides.
The technology behind the CAT III:
CAT III is the highest level in satellite positioning. Similar to CAT II it operates with two receivers to provide heading. CAT III is a dual frequency (L1 + L2) receiver, phase measurements and RTK. Accuracy is position jumps to centimetre and heading accuracy to 0.02 of a degree. These extreme accuracies allow us to make reliable prediction calculations. The E-Sea Fix CAT III also has motion sensors integrated that compensates for Heave, Pitch / or Roll and keep track of ROT (Rate Of Turn). These parameters are also essential for the prediction of accuracy end-result. The CAT III satellite receiver gets signal from not only GPS but also GLONASS and in future also GALLIEO. With this increase of available satellites the E-Sea Fix CAT III can operate under the most critical situations such as obstructions from cranes, bridges and ships own masts, antenna etc. ‘
E-Sea Fix Specifications (2.33 MB)
All Products RSS