3. VERTICAL FAN MODE
3-11
3.13.3
When ship passes over schools of fish
The sounding beam is directed fore-aft and the display is offcentered* to present a
wider view of the area forward of the ship. You can clearly see the schools of fish ap-
proaching from the bow of the ship.
*: Automatically shifted according to the operation control settings.
3.13.4
Display of net hauling
The net hauling display is useful for raising the net at the right time.
3.13.5
False echo
In shallow water (less than 100 m), unwanted echoes may appear. This phenomenon
is caused by the false echo from the previous transmission. Reducing the Tx rate on
the BOTTOM/3D menu may lessen this effect.
AFT
FORE
Fish school
Fish school
Fish school
Own ship
Forward
Fish school
Fish school
Fish school
AFT
FORE
AFT
FORE
Own ship
Backward
Net
False echo
Fish
school
Bottom
Range
Range
Range
Summary of Contents for CH-37BB
Page 1: ...COLOR SECTOR SCANNING SONAR CH 37BB OPERATOR S MANUAL www furuno com Model ...
Page 10: ...SYSTEM CONFIGURATION viii This page is intentionally left blank ...
Page 40: ...3 VERTICAL FAN MODE 3 12 This page is intentionally left blank ...
Page 44: ...4 3D MODE 4 4 This page is intentionally left blank ...
Page 48: ...5 PRESENTATION MODE 5 4 This page is intentionally left blank ...
Page 52: ...6 CUSTOM MODE KEYS 6 4 This page is intentionally left blank ...
Page 58: ...7 SYSTEM MENU 7 6 This page is intentionally left blank ...
Page 66: ...8 MAINTENANCE 8 8 This page is intentionally left blank ...