Yokogawa Dl 1200 Manual 5,5/10 5510votes The DLM2000 is a bench-top oscilloscope for electronic design or debug. It's ergonomic and easy to use, and packed with features. Automation Studio 6 Full Free. Sonar Fish Finder Df48 Manual Download Free Rating: 9,7/10 3409 votes. NOTE: The illustrations in this manual may not look the same as your product, but your unit will function in the same way. NOTE: To purchase accessories for your control head, visit our Web site at humminbird.com or contact Customer Service at 1-800-633-1468.
TheWorld's Greatest Sonars
Ask any commercial fisherman their most important piece of electronics and their Furuno Sonar will be the first thing to cross their lips. Whether you are looking for hard to find individual tuna, schools of sardines, collision avoidance or a host of other uses, a Furuno Sonar is the single best solution for your needs.
Furuno's award-winning Sonars are used in commercial fishing operations around the globe and can been seen catching fish on both working fisheries boats and sport fishing battlewagons. When looking for a sonar to make you more efficient and productive, there is only one choice. Demand the best, demand Furuno!
Black Box Full-Circle Scanning Sonar, 55 kHz
Black Box Full-Circle Scanning Sonar, 85kHz
Full-Circle Color Scanning Sonar, 20 kHz
Black Box Omni Sonar, 30KHZ
Black Box Omni Sonar, 80KHZ
Sonar is a device for finding objects underwater using sound waves. For the purpose of fishing, sonar is defined as a device that can search both horizontally and vertically while a fish finder can search only vertically underneath the own ship.
Sonars transmit ultrasonic waves into the water below and receive the returning echoes from the seabed. Anything that gets hit by these ultrasonic waves will give a returning echo that shows up on the sonar display. The device that emits the ultrasonic waves is called the transducer.
To locate fish schools, Sonar shows a radar-like image of the surroundings of the ship. This image stretches from left to right and back and forth, showing the distribution and density of fish schools if present.
Purse seiners and trawlers worldwide rely on Sonar on a daily basis to get their catch.
Managerial accounting study guide 9 answers. There are two types of Sonar: Searchlight Sonar and Scanning Sonar.
Searchlight Sonar works by transmitting a single ultrasonic beam that is 6 degrees wide. The Sonar will then rotate a further 6 degrees and repeat the process. In this way, Searchlight Sonar can search a wide area sequentially. High frequency ultrasonic waves take a comparatively long time travelling through the water, and this can limit the search speed. Due to the narrow beam transmitted, sometimes the Sonar will not display the surroundings properly while the boat is in motion.
A Searchlight Sonar creates images of the water below much like how an airplane would take pictures of the earth below. The ultrasonic waves transmitted by the transducer below the ship turns around continuously like a searchlight, hence its name. The transducer transmits ultrasonic waves into the water, then immediately switches into a receiving mode. After receiving the returning echo from the seabed the transducer turns to the left or right and transmits a new burst of ultrasonic waves. This is the cyclic operation of a Searchlight Sonar.
Scanning Sonar can search 360 degrees around the vessel in an instant. Due to the wide beam, no dead zones (zones that will not get displayed properly due to narrow beam width) will appear in the horizontal direction. Since the Scanning Sonar searches 360 degrees around the ship, the same fish school can be identified multiple times. Based on the information received by the Sonar it is also possible to estimate where the fish school is heading, and at what speed.
Scanning Sonar can display information 'full circle' at 360 degrees, or 'semi-circle' at 180 degrees at a time.
Sector scanning has a scan area of 90 degrees or 45 degrees at a time. Sector scanning works much like Searchlight Sonar, except that the beam width is much wider.
The transducer on a Scanning Sonar consists of roughly 1000 oscillators. These oscillators are arrayed in vertical and horizontal grids so that searches can be made in any direction. All of these oscillators operate simultaneously, alternating between transmitting ultrasonic waves and receiving returning echoes from the seabed. Since the oscillators are placed in a solid array it is possible to determine both the distance and direction to the fish schools found below in the water.
The way the Scanning Sonar determines the direction of the returning echoes is by having the array of oscillators timer controlled to turn on and off sequentially.
For more information about sonars visit our basics of sonar page.
What Furuno dealers are saying about the CHS8L MK2 Omni Sonar