Relocating Fish School For Easy Observation; Finding Fish School Center - Furuno CH-37 Operator's Manual

Furuno color sector scanning sonar operator's manual model ch-37

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2.13 Relocating Fish School for Easy Observation

2-14

When a fish school is near the edge of the screen and inconve-

nient for observation, use the " " expanded sonar mode and

adjust the TRAIN control (off-center function) to relocate the

fish school close to the screen center.

Fish school

Figure 2-12 How to relocate fish school

When you want to find the center depth of a fish school, change

the tilt angle and observe the presentation as follows:

1. Select a narrow sector range (45 ) and capture the target

echoes.

2. Adjust the tilt angle with the TILT control slowly and ob-

serve the change of the presentation color.

3. The echo presented in the strongest color is the center of

the fish school.

Figure 2-13 How to find fish school center

Own ship

R 800

Tilt

setting

T 8

Fish

school

RANGE

TILT

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