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Glossary Sonar Terms GPS & Navigation Terms
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Transducer: The transducer is part of the sonar system, which mounts on the boat
and is in contact with the water, that converts the electrical energy from the
transmitter into sound energy, and that forms the sonar beam in turn. Internally,
the transducer consists of one or more piezo electric disks that expand by very
minute amounts to create the sound wave. This element also works in reverse,
converting the returned sound energy back into an electrical signal that the receiver
interprets. Transducers are available for many specific mounting applications for the
boat, such as a transom mount, trolling motor mount, etc. Humminbird® offers
many sophisticated transducers, often with multiple piezo electric elements
designed to form specifically-shaped sonar beams, providing the angler with
superior tools for finding and catching fish. See Transmitter and SONAR.
Transmitter: The transmitter and receiver are matched parts of the sonar system
that send (transmit) and listen to (receive) the sonar signals, and work in
conjunction with the transducer. Humminbird® transmitters have an extremely
fast cycling design that can send signals up to 60 times per second, as well as
produce the varying levels of power output needed for different depths and
conditions. Additionally, the transmitter has the capability to create very precise
sonar pulses needed for a high degree of target separation. Humminbird®
receivers are extremely sensitive, but within a narrow "bandwidth" to
discriminate against noise from external sources. Additionally, the receiver offers
a wide "dynamic range" which provides the ability to receive very strong signals
alternating with very weak signals, without the strong signal overwhelming the
weak signal. See Transducer and Noise.
TripLog: TripLog is a Humminbird® feature that provides an on-screen counter for
Elapsed Time, Average Speed and Total Distance traveled, and requires a speed
input to activate the feature. TripLog appears on the Big Digits View, and can be
reset to zero through the TripLog menu.
TrueArch®: TrueArch® is a Humminbird® feature that provides true fish arches, not
artificial arches or symbols. Humminbird® units are capable of producing fish arches
due to the wide 60° sonar beam of DualBeam PLUS™, an extremely sensitive sonar
receiver. See Fish Arch.
Viewing Angle: Viewing Angle is an attribute of an LCD that characterizes visibility
of the display when viewing from off the central access, such as when standing to
the side of the fishfinder. Wider viewing angles are better because the information
remains visible even when viewing from the side.
WhiteLine®: WhiteLine® is a Humminbird® feature that highlights the strongest
sonar return on the display using a very light gray band. This is preferred by some
anglers who have grown accustomed to the feature on paper graph chart recorders.
WideSide®: WideSide® is a Humminbird® sonar configuration used in an optional
transducer. WideSide® uses three sonar beams pointing to the left, right and down.
Beams pointing to the left and right are effective for spotting fish and structure near
the surface or on the bank. The downlooking beam provides depth information
directly below the boat.
X-Press™ Menu: X-Press™ Menus are a Humminbird® feature that make the most
commonly-used menu selections available with one press of the MENU key. Items
that appear on the X-Press™ Menu are related to the current view, and present the
most logical choices for that view. Sonar View X-Press™ menus will differ from
Chart View X-Press™ menus, etc. X-Press™ menus are one of the principal reasons
that Humminbird® products are easier to use.