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BEFORE BEGINNING
There are two main components to a LCR 3D installation: The sensor, which you will install on
the transom, and the LCR 3D unit, which you will mount with the supplied gimbal bracket. The
sensor and LCR 3D unit communicate by means of a cable, and are powered by your boat's 12-
volt DC battery.
The sensor and LCR 3D use the basic principles of sonar to reveal objects beneath the water's
surface. The LCR 3D uses a four element sensor to transmit a "fan" like signal, which creates an
elongated area of coverage - very wide side to side, but narrow front to rear. Once the signal
strikes an object, it is immediately reflected back toward the boat and the sensor. The varying
rate at which these signals return allows the LCR 3D unit to construct a very precise 3
dimensional view of the bottom on-screen.
The advanced technology incorporated into the LCR 3D identifies the size of a fish accurately
regardless of where the fish is located in the area of coverage. This feature eliminates small fish
close to the sensor or centered within a signal, from being displayed on screen as large fish. This
also applies to large fish that might otherwise have been passed off as bait fish, or not seen at all
when they were located on the edge of a signal.
HOW THE LCR 3D WORKS
The LCR 3D allows you to view this detailed sonar information in several different ways. The 3D
view provides an easy to understand three-dimensional picture of the terrain beneath your boat.
This view can be reversed in perspective to meet individual preferences. Also, ID turns on
"strings" to attach fish to the bottom directly beneath them, to help you see their position relative
to your boat. The 2D view will be familiar to users of other LCR products, and provides all the
information of the 3D view compressed into a two-dimensional view. ID draws fish as one of three
different size fish symbols, and "blacks in" in the area beneath the bottom for easier viewing.
Of course you can use zoom and bottom lock in either of these views to provide an even more
detailed view.
And finally, the unique Quad-Beam® view displays sonar information from all four beams
simultaneously. This is similar to using four different depthsounders at once with the sensors
pointed in different directions.