Furuno CH-250 - Manual (Page 64)

3-14
3.13.2 Sample echo displays
Port-starboard picture (bottom)
You can see fish echoes at the center-right of the screen. The bottom is displayed wider as the
distance from the ship’s position increases. Therefore, it may be difficult to discriminate bottom
fish.
Fish
school
Own ship
PORT STBD
Bottom
Figure 3-18 Port-starboard picture
When ship passes over fish schools
The sounding beam is directed fore-aft and the display is off-centered* to present a wider view
of the area forward of the ship. You can clearly see fish schools approaching from the bow of
the ship.
*: Automatically shifted.
FORE AFT
FORE AFT
Fish
school
Fish
school
Forward Own ship
Figure 3-19 Picture appearance when passing over fish schools