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4. VIDEO SOUNDER OPERATION
4-12
4.8 White Marker
The white marker functions to display a particular echo color in white. For example, you
may want to display the bottom echo in white to discriminate fish echoes near the bottom.
1. Press the MENU key.
2. Press the A: SOUNDER MENU soft key.
3. Select WHITE MARKER, then press the A: EDIT soft key to open the white marker
window.
WHITE MARKER
▲
OFF
▼
White marker window
4. Use the Trackball
to select the color to display in white. As you use the Trackball, the
number in the white marker window changes, the white marker on the echo strength bar
shifts and the selected echo color is displayed in white.
←
White marker shows
color currently
displayed in white.
Color bar (16 color) when white marker function is active
5. Press the E: RETURN soft key followed by the MENU key to close the menu.
To turn the white marker function off, display “OFF” in the white marker window.
4.9 Picture Advance Speed
The picture advance speed determines how quickly the vertical scan lines run across the
screen. When selecting a picture advance speed, keep in mind that a fast advance speed
will expand the size of the fish school horizontally on the screen and a slow advance speed
will contract it.
The advancement speed may be set independent of or synchronized with ship’s speed.
4.9.1 Advancement independent of ship’s speed
1. Press the MENU key.
2. Press the A: SOUNDER MENU soft key.
3. Select PICTURE ADVANCE, and press the A: EDIT soft key to open the picture
advance window.