Humminbird 128 manual Simulator Operation, What YOU see ON-SCREEN

SIMULATOR OPERATION

The Wide 128 contains a simulator which allows you to use the unit as if you are on the water. The Simulator is invaluable for learning how to operate the many features of the Wide 128. There are two ways to enable the simulator: if the unit is powered off, press and hold the POWER button for approximately 3 seconds until a continuous chirp is heard. The Simulator can also be enabled by selecting the Simulator option on the start-up screen after you normally power-up the unit. When this screen is shown, simply press the DOWN ARROW until "Simulator" is highlighted. When the screen times-out, the unit will be in simulator mode.

When in simulator operation, the Wide 128 responds to control inputs as if it is in actual operation, so feel free to experiment with the many features and functions to customize the Wide 128 for your particular operation. To exit Simulator mode, power the unit off.

WHAT YOU SEE ON-SCREEN

Your Wide 128 uses a 64 x 128 matrix SuperTwist LCD display. This type of display provides outstanding viewability in all light conditions over a wide range of temperatures.

NOTE: When in simulator mode, the word "simulator" occasionally scrolls across the display indicating that the information onscreen is not real sonar data.

At power-up, the depth range , sensitivity, and other user adjustments are set at their default settings. There are several elements on-screen which are common to all modes of operation. The large digital number at the lower left of the display is the depth of the water directly beneath the transducer location.

The range of the graphic display is shown to the right of the graphic information. The upper number is 0 indicating the surface of the water, the lower number is one of the 9 ranges available which best matches the depth of the water. As the depth of the water changes, the range changes as necessary in order to retain a bottom representation on-screen.

When in Auto mode, the horizontal line at the top of the graphics area is the 0 line which represents the surface of the water. Occasionally there will be a gap in this line. This gap indicates that the unit is updating the display even if the bottom is not visible on-screen, or if the bottom information is not changing.

The graphic representation of the bottom may vary considerably depending on the composition and regularity of the bottom surface (see Interpreting the On-screen Information). Any sonar return which is determined to be not a part of the bottom is shown between the surface and the bottom. If this return is determined to be a fish, one of several fish shapes is drawn which indicate size, depth, and location of the fish (see Interpreting the On-screen Information).

INTERPRETING THE ON-SCREEN INFORMATION

Figure B shows a typical view you can expect to see on-water. New sonar information appears on the right side of the graphic area of the display and moves to the left as new information is displayed. The Wide 128 automatically selects the appropriate depth range to show the depth of water beneath the transducer. This range is selected so that the bottom representation is typically shown about 2/3 down the display.

The graphic depiction of the bottom provides the user with an effective tool for understanding the composition of the bottom. If the bottom is hard and smooth, the bottom depiction is narrow and dense. If the bottom is soft mud