Selecting The Range - Furuno CH-250 Operator's Manual

2.3

Selecting the Range

The [RANGE] control selects the detection (display) range. Select the range according to either
the fish species being searched or the depth desired. 15 ranges are available and minimum and
maximum ranges depend on the transducer used.
60 kHz
Range
m
No.1 10
No.2 20
No.3 40
No.4 80
No.5 120
No.6 160
No.7 200
No.8 250
No.9 300
No.10 400
No.11 500
No.12 600
No.13 800
No.14 1200
No.15 1600
Normally the range is set so that the bottom is traced at the lower part of the screen (like an
echo sounder). Each time the [Range] control is operated the newly selected range briefly
appears in large characters at the screen top. Range is always displayed at the right-hand
corner of the screen.
Note 1: Unit of range measurement may be selected for meters, feet, fathoms, passi/braza or
Hiro (Japanese) with UNIT on the SYSTEM SETTING 1 menu. For details see page
5-10.
Note 2: Ranges may be freely preset as desired. For details see page 5-14.
BOTTOM
BOTTOM
Figure 2-3 How to select the range
Default horizontal mode range settings
88 kHz
ft m ft
40 10 40
80 20 80
120 40 120
200 80 200
300 120 300
400 160 400
500 200 500
600 250 600
800 300 800
1000 400 1000
1500 500 1500
2000 600 2000
3000 800 2500
4000 1000 3500
5000 1200 4000
SEA SURFACE
SEA SURFACE
Range indicated
on the screen. Range indicated
on the screen.
150 kHz 180 kHz
m ft m
10 40 10
20 80 20
40 120 40
60 200 60
80 300 80
120 400 100
160 500 120
200 600 160
250 700 200
300 800 250
400 1000 300
500 1500 400
600 2000 500
800 2500 600
1000 3500 800
240 kHz
ft m ft
40 10 30
80 20 60
120 30 90
200 40 120
300 60 150
400 80 200
500 100 250
600 120 300
700 160 400
800 200 500
1000 250 600
1200 300 800
1500 400 1000
2000 500 1500
2500 600 2000
2-3