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Total Screen Update®: A Humminbird® feature that refreshes and updates all the sonar
information on the display when a range change occurs. Without Total Screen Update®,
only the most recent sonar information would be drawn to the new range, and the old
sonar information would continue to scroll off the screen at the old range.
Transducer: The transducer mounts on the boat and is in contact with the water. It
converts the electrical energy from the transmitter into sound energy, forming the
sonar beam. 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, as
opposed to artificial arches or symbols. Humminbird® units are capable of producing
fish arches due to the extremely sensitive DualBeam PLUS™ sonar receiver with its wide
60° sonar beam. 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 axis, 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: The X-Press™ Menu is a Humminbird® feature that makes 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.
Zoom: Zoom is a feature that focuses in on a smaller area of the bottom to provide
enhanced resolution. With enhanced resolution, the angler can more easily see fish
hanging in structure or multiple fish hanging close together. Split screen zoom divides
the display into the full range view on the right, and the zoomed view on the left.
Humminbird® offers One-Touch® Zoom which allows the zoom feature to be easily
accessed from the regular sonar view with just one key press, eliminating the need to
use menus to access the feature.
Zoom, Bottom Lock: Bottom Lock Zoom is a feature that focuses on a smaller area just
above the bottom to provide enhanced resolution. Unlike regular zoom, it continuously
graphs the bottom at a constant point on the display regardless of changes in depth.
This "flattens" out the bottom contour, but is effective at showing fish on or near the
bottom, and is preferred by many saltwater anglers.
