Eagle Electronics 640c manual ColorLine

1.From the Sonar Page, press MENU↓ to CHART SPEEDENT.

2.The Chart Speed Control Bar appears. Press ↓ to decrease chart speed or 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.

ColorLine is adjustable. Experiment with your unit to find the ColorLine setting that's best for you. To adjust the ColorLine level:

1.From the Sonar Page, press MENU↓ to COLORLINEENT.

2.The ColorLine Control Bar appears. Press ↓ to decrease ColorLine; press ↑ to increase Colorline.

3.When it's set at the desired level, press EXIT.

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