Fish finders are the best tool to use so you can find and place your boat on top of the fish. All fish finders use sonar to scan the water. A sound wave is sent from the fish finder through the water forming a cone. When an object is detected, the fish finder measures the amount of time between when the sound wave was sent and when it bounced back to the unit and is displayed on the screen.
If the sound wave does not detect anything it hits the bottom. Soft bottoms such as mud will absorb the signal while hard bottoms like rock will reflect a stronger signal and send it back. The small differences in reflections are displayed on the screen and this shows how the bottom is read.
Cone angles are the measurement of the sonar beams in degrees. They are measured at "-10db" which is a way the measurement is consistent from one transducer to another and to accurately represent the capability of the fish finder. Each manufacturer and fish finder model have different cone angles. Humminbird uses an advanced multi-beam system that sends 2, 3 or even 6 sonar beams while most of the other brands use 1 sonar beam.
Here is a quick reference chart for the covered area for a specific cone angle. Example: If you are fishing at a 10 foot depth and a cone angle of 20 degrees, the area on the bottom is 3.5 feet.
20 degrees
-0.35 or roughly 1/3 of depth 24 degrees
-0.42 or roughly 2/5 of depth 30 degrees
-0.53 or roughly 1/2 of depth 40 degrees
-0.72 or roughly 3/4 of depth 50 degrees
-0.93 or roughly 9/10 of depth 60 degrees
-1.15 x depth 70 degrees
-1.4 x depth 73 degrees
-1.48 x depth 80 degrees
-1.68 x depth 90 degrees
-2 x depth 100 degrees
-2.38 x depth 110 degrees
-2.85 x depth
Fish targets will be displayed as a Fish ID symbol or an "arch" which is an unprocessed sonar return, the choice will be yours. Fish ID symbols are determined from a suspended shape being analyzed from the sonar beam to see if it is a fish. If a fish is detected, it is seen on your display as a fish graphic. Arches are displayed from the characteristics of the sonar. Fish that pass through the beam are seen as an arch on the screen. The sensitivity setting of the unit, depth of water, boat speed and location of fish will determine the size of the arch.
Clarity of the water, strong winds or currents can create air pockets and has a lot to do with the integrity of the signal. Small mineral particles such as algae, plankton or other microorganisms can absorb the sound wave instead of reflecting it back to the unit. The action of the waves will also determine the amount of air in the equation and affect the reading.
Transducers are mounted in the water on the inside of the hull, on the transom or on the trolling motor. From a cable connected from the transducer to the fish finder, an electrical signal is taken from the transmitter and turns it into sonar. The transducer should always be mounted straight down and away from motors or any other obstructions.
There are two different types of display screens available. An LCD screen is measured in pixels which shows the sonar information. The more pixels there are the clarity of the image will be better. FSTN displays provide a high contrast image for easy reading that can be seen from anywhere on the boat. They use gray scale technology that offers more detail by showing the sonar image in different shade of gray which can easily distinguish what the bottom is and what the fish are.
Listed below are more articles related to the above article from the "Fishing" article category.
People interested in the above article "Fish Finders Work Hard to Locate and Put You on Top of a Big Catch" are also interested in the related articles listed below:
Fishing adventures are the best outdoor activity for both adults and children. Nothing is more enjoyable, peaceful and educational than a day spent fly fishing. In today's busy life schedule, fly fishing is a great way of fun and relaxation which connects you with nature.
Find out how to beat readymade baits by using butyric acid! It is one of the most well known bait and flavour components in carp fishing today, rated by Bill Cottam boss of Nutrabaits in his top ten. It is used alongside pineapple flavours in instant readymade baits. But how can you use it even more effectively than that? How much do you know about butyric acid that will improve your catches right now? This revealing article will really make you think!
The dynamics of oxygen production and use in a pond are complex and can be difficult to quantify. Plankton and algae in the water can produce some oxygen, but basing the oxygen consumption on only the organisms you are raising in the pond or lake will lead to under estimation, as wild organisms will inevitably occupy the same body of water. This leads to a need for sufficient aeration, and it has been shown that a fountain style or aerator is much more efficient than a paddle aerator, especially in brackish water. Pond aeration can make the difference between a swampy, stinking mess, and a healthy, thriving aquaculture with high production.
They say a bad day of fishing is better than a good day of work. Fortunately, you're not likely to have a bad day fishing when you're surrounded by the natural beauty of the Journey Through Hallowed Ground Scenic Byway in Maryland (also known as the Catoctin Mountain Scenic Byway.) Take a day off and drive the route to fish-filled rivers, lakes, and ponds where you can let your line slack and your mind wander.
When you think of beaches, you probably don't immediately think of Idaho. A ride on the Pend Oreille Scenic Byway, however, will surely change that. Located in the northern tip of Idaho, this byway introduces you to miles of open shoreline, surrounding a vast lake filled with schools of fish. Bright green surrounds the beaches, throwing shadows in all the right places-the perfect setting for a day of fishing.
Travel through a wild and undeveloped portion of the Monongahela National Forest. Hardwood forests cover rolling, mountainous terrain capped by dark spruce at high elevations. Traverse a narrow and steep-walled valley with views of clear mountain streams. Sights include Cranberry Glades Botanical Area, Summit Lake, and Falls of Hills Creek.
The 15.5-mile stretch of clear flowing Colorado River winding through the Marble Canyon Gorge between the Glen Canyon Dam and the beginning of the Grand Canyon is commonly referred to as Lees Ferry. Since 1964 this area has hosted a recreational trout fishery that has grown in importance and reputation. For anglers, this picturesque stretch of river is a unique tail-water trout fishery of international renown. Anglers from around the world have come to Lees Ferry to fish for rainbow trout in this large, swift flowing river winding its way through the lower most segment of Glen Canyon.
