Furuno CH-300 Operator's Manual page 49

2. HORIZONTAL MODE
TARGET KEY: Chooses target lock function between position and echo. Default setting is
ECHO. For further details see paragraph 2.13.
LOCK MODE: Chooses how to track fish echo in "echo" target lock; automatically or
manually. Default setting is AUTO. For further details see paragraph 2.13.
AUTO TILT: Turns automatic tilt on or off, and the default setting is OFF. The choices are
±2°, ±4°, ±6°, and ±10°. Automatic tilt adjusts the tilt angle in the following sequence:
B → (B-A) → B → (B+A) → B → (B-A) → B → (B+A)...
B: Current tilt angle
A: Auto tilt setting
For example, the tilt angle is 30° and the automatic tilt setting is 4°. Then, the tilt angle is
changed in the following sequence: 30° → 26° → 30° → 34° → 30°→ 26° → 30° → 34°...
Note: The TILT control is inoperative when automatic tilt is active.
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