1.Press MENUMENU↓ to SONAR SETUPENT↓ to CALIBRATE WATER

SPEEDENT.

2.Enter the number you calculated earlier. Press ↑ ↓ to change the first character (+ or –), then press → to move the cursor to the first number and repeat until the percentage is correct, then press EXIT.

Chart Speed

The rate that echoes scroll across the screen is called the chart speed. The default is maximum .We recommend you leave the speed set there for most all fishing conditions. You, however, might consider experi- menting with chart speed when you are stationary or drifting very slowly. You may sometimes achieve better images as you slow down the chart speed to match how fast you are moving across the bottom.

If you are at anchor, ice fishing or fishing from a dock, experiment with a chart speed around 50 percent. If you are drifting slowly, try a chart 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.

Sonar Page menu with Chart Speed selected (left).

Chart Speed Control Bar (right).

If you experiment with chart speed, remember to reset it to maximum 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 adjust chart speed.

3.When it is set at a desired level, press EXIT.

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Eagle Electronics 502cDF manual Chart Speed