Fish finders work hard to locate and put on top of a Big Catch
fish finders are the best tool to use for can find and put your boat on top of fish. All fish finders use sonar to look for water. A sound wave is sent from the fish finder in water forming a cone. When an object is detected, the fish finder that measures the amount of time between when the sound wave was sent and when they reached up to the unit and displays on the screen.
If the sound wave does not detect anything it touches the bottom. soft bottoms, such as clay will absorb the signal while funds reflect the rock-hard a stronger signal and send it back. Small differences in the reflections on the screen and this shows how the bottom is read.
Cone angles are measuring the sonar beam in degrees. Are measured in "-10dB" which is a form of measurement is consistent with transducer to another and to accurately represent the ability of the fish finder. Each manufacturer and model form of fish have different cone angles. Humminbird uses an advanced multi-beam system that sends 2, 3 or even 6 sonar beams while most other makes use of a sonar beam.
Here is a quick reference chart for the area covered by a specific cone angle.
Example: If you are fishing at a depth of 10 feet and a cone angle of 20 degrees, the area where the bottom is 3.5 meters.
20 º -0.35 or about 1 / 3 depth
24 º -0.42 or approximately 5.2 of depth
30 º -0.53 or about 1 / 2 depth
-0.72 40 degrees or approximately 3 / 4 depth
50 º -0.93 or approximately 9.10 of depth
-1.15 X 60 º depth
70 degrees -1.4 X depth
-1.48 X 73 degrees Depth
-1.68 X 80 degrees Depth
90 º -2 x depth
-2.38 X depth 100 degrees
110 degrees -2.85 X depth
objectives of fish will be displayed as a symbol of identification of fish or of an "arc" which is a natural state return sonar, the choice is yours. The symbols of identity is determined from a suspended form is analyzed from the beam sonar to see if a fish. If a fish is detected, seen on the screen like a fish graphic. Bows are shown from the probe characteristics. The fish that pass through the beam are seen as an arc on the screen. The sensitivity setting unit, the water depth, boat speed and location of the fish determines the size of the arc.
Clarity water, winds or currents can create air pockets and has a lot to do with the signal integrity. Small mineral particles, such as algae, plankton and other microorganisms can absorb sound waves instead of reflecting back to the unit. The wave action will also determine the amount of air in the equation and affect the reading.
Transducers are mounted on the water inside the hull at the transom or trolling motor. From a cable connected from the transducer the fish finder, an electrical signal is taken from the transmitter and converts it into sound. The transducer must always be mounted down and away from motors or other obstructions.
There are two different types of display screens available. An LCD screen is measured in pixels, the information of the sound. The more pixels not the picture clarity is better. FSTN displays give a high contrast for easy reading that can be seen from anywhere on the boat. Use grayscale technology that provides more detail than shown in the image of sound in the shade of gray different can easily distinguish what the fund is and what they are fish.
About the Author
By:Marc Dorin
http://www.fishfindergarage.com/
Humminbird Side Imaging Infomercial SideImaging.com– 2 of 3
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