4 manual sounder operation – Furuno GP-3500F User Manual
Page 184
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11. VIDEO SOUNDER OPERATION
11-12
11.4
Manual Sounder Operation
Manual operation is useful for observing fish schools and bottom using fixed gain
setting.
11.4.1
Selecting the manual mode
1. Press the [MENU] key to show the main menu.
2. Press the [9] key to show the ECHO SOUNDER menu.
3. Press the [1] key to show the AUTO MODE window.
AUTO MODE
1. CRUISING
2. FISHING
3. OFF
Auto mode window
4. Press the [3] key to select “3. OFF.”
5. Press the [ENTER] knob.
6. Press the [MENU] key several times to close the menu.
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