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The way in which the Yeoman plotter combines speedy GPS position fixing with a paper chart is cited as a benefit for two principal reasons. The first is one of safety and reliability - even the best marine electronics fail from time to time, and if the boat's electronic instruments should cease to work then a recent pencil plot on a paper chart becomes extremely valuable.
A Raymarine chartplotter. A chartplotter is a device used in marine navigation that integrates GPS data with an electronic navigational chart (ENC).. The chartplotter displays the ENC along with the position, heading and speed of the ship, and may display additional information from radar, automatic information systems (AIS) or other sensors.
Raymarine is a manufacturer and major supplier of electronic equipment for marine use. The company targets both recreational and light commercial markets with their products, which include: GPS Chartplotters; VHF Radios; Digital Fishfinders / Sonar; Radar; Self-steering gear (Autohelm / Autopilot) Satellite television; Software
Fathometer sonar. A fishfinder or sounder (Australia) is a sonar instrument used on boats to identify aquatic animals, underwater topography and other objects by detecting reflected pulses of sound energy, usually during fishing activities.
Information provided by AIS equipment, such as unique identification, position, course, and speed, is then transferred to the main Marine Traffic servers for display via the website in real time. The site uses data from OpenStreetMap on its base map, and the paid version lets users display ship locations on Nautical Charts.
The feature of OPS-9 is that it has a total length of 4 meters, which is unusual for a waveguide slot array antenna. The waveguide slot array antenna has a structure in which slot holes for microwave emission / reception are provided at equal intervals on the side surface of the waveguide. At the time of oscillation, the microwaves emitted from ...