Furuno CH-300 - Manual (Page 63)

3. VERTICAL SCAN MODE
3-5
3.5 Choosing Display Sector
Sector means the width of the transducer training, from 6 ° to 180°.
24
° Sector (Shown: 24
°
)
Sector
The SECTOR control chooses the training area among the sixteen positions shown in the
table below. Clockwise rotation of the control increases the sector width; counterclockwise
rotation decreases it.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Sector
width
(
°)
6 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
One-touch selection of 180
°
sector
1. Press the FULL/HALF key. A half-circle display of 180 ° is presented.
2. Press the FULL/HALF key again, and a 120 °-sector display is presented.
Note:
Operating the SECTOR control between steps 1 and 2 in the procedure above
displays the 180 ° sector at the next pressing of the FULL/HALF key.
24
°
FULL/HALF
key
Sector set with
SECTOR control
Half circle
180
° 0
°
180
°
0
°
120
°
FULL/HALF
key
180
°
How the FULL/HALF key works