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Typical values used by commercial fish finders are 4921 ft/s (1500 m/s) in seawater and 4800 ft/s (1463 m/s) in freshwater. [ citation needed ] The process can be repeated up to 40 times per second and eventually results in the bottom of the ocean being displayed versus time (the fathometer function that eventually spawned the sporting use of ...
Over time, log construction standardized. The shape is a quarter circle, or quadrant with a radius of 5 inches (130 mm) or 6 inches (150 mm), [1] and 0.5 inches (13 mm) thick. [1] The log-line attaches to the board with a bridle of three lines that connect to the vertex and to the two ends of the quadrant's arc.
In 2003 Simrad Yachting acquired B&G. In 2005 Altor 2003 Fund acquired Simrad Yachting AS from Kongsberg Group. In 2006 Altor 2003 Fund acquired Lowrance Electronics. Also in 2006, Navico was created through the merger of Simrad Yachting and Lowrance Electronics by their common owners, Altor Equity Partners, a Swedish private equity firm.
Due to the great success of these systems, the company was able to offer an ever-wider range of systems. In 1989, Fawcett came up with the SeaTalk network, a digital-communications protocol that allowed Autohelm units to “talk” with other onboard instrumentation via a single-cable connection (a predecessor to contemporary NMEA 0183 and NMEA ...
Fish finder may refer to: Fishfinder , a sonar device attached to a boat, used to measure the amount of fish at various depths underneath the boat Fish identifier, an identification key used in fishing to identify the species of a caught fish
NMEA 2000, abbreviated to NMEA2k or N2K and standardized as IEC 61162-3, is a plug-and-play communications standard used for connecting marine sensors and display units within ships and boats. Communication runs at 250 kilobits-per-second and allows any sensor to talk to any display unit or other device compatible with NMEA 2000 protocols.