Furuno CH-250 manual Selecting Sector Width, One-touch selection of 360 sector

2.4Selecting Sector Width

Sector means the width of the transducer training.

	Display sector
96°	(shown: 96˚)

Figure 2-4 Display sector

The [SECTOR] control selects the training (display) 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	24	48	72	96	120	144	168	192	216	240	264	288	312	336	360
width (° )

In the full-circle mode (360° ) the direction of training is clockwise; in the half-circle mode the direction is clockwise to counterclockwise alternately.

One-touch selection of 360° sector

Each pressing of the [FULL/HALF] key alternately selects 360° sector (full circle) or 168° sector (half circle). If the [SECTOR] control is operated following the selection of the full-circle display, the next pressing of the [FULL/HALF] key presents the full-circle display.

Sector set with	Full circle	Half circle
SECTOR control
	FULL/HALF	FULL/HALF
		key
	key	168°

Figure 2-5 How the FULL/HALF key works

2-4