Furuno CH-250 manual Selecting Display Sector, One-touch selection of 180 sector

3.5Selecting Display Sector

Sector means the width of the transducer training, from 6° to 180°.

24˚ Sector (Shown: 24˚)

Figure 3-6 Sector

The [SECTOR] control selects 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	6	12	24	36	48	60	72	84	96	108	120	132	144	156	168	180
width (° )

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.

Sector set with		Half circle
SECTOR control
FULL/HALF	180˚	0˚	FULL/HALF	180˚	0˚
			key
key		180˚
24˚					120˚

Figure 3-7 How the FULL/HALF key works

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