speed around 75 percent. When you are stationary and a fish swims through the sonar signal cone, the image appears on the screen as a long line instead of a fish arch. Reducing the chart speed may result in a shorter line that more closely resembles a regular fish return.
At left, Sonar Page menu with Chart Speed command selected.
At right, Chart Speed Control Bar.
If you do experiment with chart speed, remember to reset it to maxi- mum when you resume trolling or moving across the water at higher speed. To change chart speed:
1.From the Sonar Page, press MENU↓ to CHART SPEEDENT.
2.The Chart Speed Control Bar appears. Press ↓ to decrease chart speed; press ↑ to increase chart speed.
3.When it's set at the desired level, press EXIT.
ColorLine
ColorLine lets you distinguish between strong and weak echoes. It "paints" a brighter color on targets that are stronger than a preset value. This allows you to tell the difference between a hard and soft bottom. For example, a soft, muddy or weedy bottom returns a weaker signal which is shown with a narrow, colored line (dark blue tinged with red or a little yellow.) Since fish are among the weakest echoes, they show up mostly as blue arches. A hard bottom or other relatively hard target returns a strong signal which causes a wider brightly col- ored line (reddish yellow to bright yellow.)
If you have two signals of equal size, one with red to yellow color and the other without, then the target with brighter color (yellow) is the stronger signal. This helps distinguish weeds from trees on the bottom, or fish from structure.
43