Furuno CH-250 manual Range concept Default echo sounder mode range settings

4.3Selecting the Range

The [RANGE] control selects the detection (display) range, in 15 settings. Select the range according to either the fish species being searched or the depth desired. Each time the control is operated the newly selected range briefly appears in large characters at the screen top. Range is permanently displayed at the top right-hand corner.

Normally the range is set so that the bottom is traced at the lower part of the screen.

Surface

RANGE m

Bottom

Figure 4-3 Range concept

Default echo sounder mode range settings

Unit	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Meters	10	20	30	40	60	80	100	120	160	200	250	300	400	500	600
Feet	30	60	90	120	150	200	250	300	400	500	600	800	1000	1500	2000

Note 1: Unit of range measurement may be selected for meters, feet, fathoms, passi/braza or Hiro (Japanese). For details see page 5-11.

Note 2: Ranges may be freely preset as desired. For details see page 5-17.

4-3