Furuno CH-300 - Manual (Page 45)

2. HORIZONTAL MODE
2-19
2.13 Target Lock
Two types of target lock modes are available.
Position:
Tracks stationary position (such as a reef) using position data from a
navigator. Available in the horizontal mode only.
Echo:
Tracks fish echo either manually or automatically. Available in the
horizontal mode only.
2.13.1 Choosing a target lock mode
1. Press the MENU key to open the menu.
2. Press▲ to choose MENU
3. Press ◄ or ► to choose the HORZ menu.
4. Press ▲ or ▼ to choose TARGET KEY.
5. Press ◄ or ► to show following dialog box.
TARGET KEY
POS ECHO
6. Press ◄ or ► to choose option desired.
7. Press the MENU key to register your selection and close the menu.
2.13.2 Position mode
This mode tracks a stationary position (such as a reef) using position data fed from a
navigator.
Note 1:
This function is inoperative in the echo sounder mode.
Note 2:
This mode requires position data. When there is no position data the message “NO
POSITION DATA.” appears for four seconds and tracking is automatically cancelled. Check
the navigator.
Note 3:
The tilt angle must be less than 75 degrees to use this feature.
1. Use the Omnipad to choose the location to track.
2. Press the TARGET key.
The message “POS LOCK” appears momentarily at the screen top, the target lock
marker is displayed at the cursor position and the target lock indicator appears at the top
right-hand corner of the screen while tracking (with position data from external
equipment) is occurring. SECTOR, TILT and FULL/HALF controls are inoperative since
their functions are inoperative during position mode target lock.
The detection area is fixed at 48-degrees. Tilt angle and train are automatically adjusted
to track the target even if your vessel is moving.