For the channel and harbour pilot who operate in confined and busy waters and ports, the CAT II will provide both a precise navigational tool and a berthing tool. Worldwide the CAT II category is the most used tool for harbour and channel navigation. With the unique options the E-Sea Guide software provides; berthing lines and a possibility for barometric survey overlays on the electronic chart the CAT II is used to turn vessels in limited spaces, or together with real-time tidal data shown on the pilots’ notebook, it can be used to bring deep draught vessels in at rising water. The CAT II provides heading data and makes the pilot completely
independent of the ships’ equipment.
The technology behind the CAT II:
CAT II is in the category where two GPS receivers and two antennas are combined to be able to measure heading. The technology is single frequency (L1), GPS, phase measurements and RTK (Real-Time Kinematic). Apart from the heading added this principle offers better position stability and better speed accuracy compared to CAT I. A built-in rate sensor makes the system robust in its overall performance. Differential corrections from EGNOS, WAAS and MSAS are standard and corrections from shore beacons are a feature that can be added.
E-Sea Fix Specifications (2.33 MB)
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