Furuno CH-250 - Manual (Page 56)

3-6
3.6 Selecting Sector Center
The center direction of the sounding beam in the vertical direction can be changed with the
[TILT] control. The setting range is 0
° to 180 ° in increments of 6 ° . Select the setting which
places the sector center in the middle of the detection range.
Sector
range
180˚
0˚
In the example display at left, the sector
center indicator is starboard, and the
width of the sector is 48˚.
Sector center
indicator
PORT STBD
Sector of 48˚ set with
[SECTOR] control
Sector center angle
set with TILT control
Figure 3-8 Sector center
Automatic shifting of own ship position
Own ship position on the screen is automatically shifted either rightward or leftward according to
the direction of the sector center and display sector width.
The figure below shows the own ship position has been shifted rightward on the screen to
provide the wider view at the port side.
Sector center 0 ° to 60 °: Own ship position shifted to port side
Sector center 66 ° to 114 °: Own ship position shifted to center
Sector center 120 ° to 180 °: Own ship position shifted starboard
Display sector
Sector center
Figure 3-9 How automatic shifting works