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・ Fishery Protection Squadron
・ Fishery Resources Monitoring System
・ Fisher–Kolmogorov equation
・ Fisher–Nash–Griggs House
・ Fisher–Schultz Lecture
・ Fisher–Tippett–Gnedenko theorem
・ Fisher–Yates shuffle
・ Fishes of Sespe Creek, California
・ Fishes of the World
・ Fishes of Yellowstone National Park
・ Fisheye
・ Fisheye (album)
・ FishEye (software)
・ Fisheye lens
・ Fisheye State Routing
Fishfinder
・ Fishfly
・ Fishguard
・ Fishguard & Goodwick Marina
・ Fishguard and Goodwick
・ Fishguard and Goodwick railway station
・ Fishguard and Goodwick RFC
・ Fishguard Folk Festival
・ Fishguard Harbour railway station
・ Fishguard Lifeboat Station
・ Fishguard Volcanic Group
・ Fishhawk Glacier
・ FishHawk, Florida
・ Fishhook (Cambodia)
・ Fishhook (disambiguation)


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Fishfinder : ウィキペディア英語版
Fishfinder

A fishfinder or sounder (Australia) is an instrument used to locate fish underwater by detecting reflected pulses of sound energy, as in sonar. A modern fishfinder displays measurements of reflected sound on a graphical display, allowing an operator to interpret information to locate schools of fish, underwater debris, and the bottom of body of water. Fishfinder instruments are used both by sport and commercial fishermen. Modern electronics allows a high degree of integration between the fishfinder system, marine radar, compass and GPS navigation systems.
==Fathometer==
Fish finders were derived from ''fathometer''s, active sonar instruments used for navigation and safety to determine the depth of water. The fathom is a unit of water depth, from which the instrument gets its name. The fathometer is an echo sounding system for measurement of water depth. A fathometer will display water depth and can make an automatic permanent record of measurements. Since both fathometers and fishfinders work the same way, and use similar frequencies and can detect both the bottom and fish, the instruments have merged.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Fishfinder」の詳細全文を読む



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