Furuno FSV-84 manual Position tracking mode

4. SLANT MODE

4.12.3Position tracking mode

This mode tracks a stationary position (such as a reef) using position data fed from a navigator.

ABCD

Depth

E

How position tracking mode target lock works

1.Select TARGET MARK at step 7 in the procedure in section 4.12.1.

2.Use the trackball to select the location to track.

3.Press the [TARGET LOCK] key to inscribe the target lock mark () at the location selected. The target lock mark is also inscribed on the vertical display.

Tilt, range and vertical bearing are automatically adjusted to track the location. Using the figure above as an example, the target lock mark is placed on location “E”. Then, the equipment remembers the location of “E” and automatically changes the tilt angle as the ship moves from position A through D. As long as the fish school “E” is stationary its echo is kept displayed on the screen.

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