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.
Range
No.1
No.2
No.3
No.4
No.5
No.6
No.7
No.8
No.9
No.10
No.11
No.12
No.13
No.14
No.15
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-
9.
Note 2: Ranges may be freely preset as desired. For details see page 5-13.
BOTTOM
BOTTOM
Figure 2-3 How to select the range
Default horizontal mode range settings
60 kHz
m ft m
10 40 10
20 80 20
40 120 40
80 200 80
120 300 120
160 400 160
200 500 200
250 600 250
300 800 300
400 1000 400
500 1500 500
600 2000 600
800 3000 800
1200 4000 1000
1600 5000 1200
SEA SURFACE
SEA SURFACE
Range indicated
on the screen.
Range indicated
on the screen.
88 kHz 150 kHz
ft m
40 10
80 20
120 40
200 60
300 80
400 120
500 160
600 200
800 250
1000 300
1500 400
2000 500
2500 600
3500 800
4000 1000
ft
40
80
120
200
300
400
500
600
700
800
1000
1500
2000
2500
3500
2-3