How
Fish Finders Work?
www.bystore.org
The thrill
of any fishing adventure begins with finding the right place to wet
your line. Fishfinder allow anglers to quickly identify key targets
and structure, as well as fish.
A
Fish Finder is a subset of a group of instruments called sonars. A Sonar
consists of a transmitter, transducer, receiver and display. In the
simplest terms, an electrical impulse from a transmitter is converted
into a sound wave by the transducer and sent into the water. When this
wave strikes an object, it rebounds. This echo strikes the transducer,
which converts it back into an electric signal, which is amplified by
the receiver and sent to the display. Since the speed of sound in water
is constant (approximately 4800 feet per second), the time lapse between
the transmitted signal and the received echo can be measured and the
distance to the object determined. This process repeats itself many
times per second.
Display:
The display shows a history of the received echoes. The user can make
a number of adjustments to tailor the display to his or her preference,
such as senitivity,the depth range and chart speed. Displays use a variety
of technologies,provide different resolutions and number of shades of
gray or color. Each display is made up of a number of pixels, which
are little square blocks that make up the images. The more pixels and
shades of gray or color the better resolution and image clarity.
Fish Targets:
Echoes from fish within the beam will be shown on the display by illuminated
pixels. What image appears on the display depends on a number of factors:
the sensitivity setting on the fishfinder, the cone angle of the transducer,
the speed of the boat, and the size, depth, speed and direction of the
fish. A fish that is swimming directly beneath the boat, it will create
a consistent echo that will cause a continuous line to appear on the
display. A stationary fish caught in a narrow beam transducer appears
as a single point on the screen as the boat passes above it, whereas
under the same conditions the fish appears as an arch if a wide beam
transducer is used.
To read more of How Fish Finders Work, or select Fish Finder that right
for you, please visit our site at: http://www.bystore.org
Almost
anyone can now afford to own a unit that will assist in a better fishing.
Andrei
Loskoutov
