How To Adjust The Range - Furuno CH-500 Operator's Manual

1.10

How to Adjust the Range

The RANGE knob adjusts the range for echo detection and display on all display
modes. There are 15 preset ranges, for Horizontal, Vertical and Echo Sounder modes,
which can be changed to suit your needs.
The default preset range is the same for all modes, as shown in the table below.
CH-500
Range
setting
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CH-600
Range setting
To increase the range, turn the RANGE knob clockwise.
To decrease the range, turn the RANGE knob counter-clockwise.
When the range is changed, the selected range is displayed at the top-center of the
screen for a few seconds. The indication at the top-right of the screen always shows
the currently selected range.
For normal use, the range should be set so that the seabed echo is at the bottom of
the screen.
60 kHz 88 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
60/153 kHz, 85/215 kHz
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 1200
150 kHz
ft m ft
40 10 40
80 20 80
120 40 120
200 60 200
300 80 300
400 120 400
500 160 500
600 200 600
800 250 700
1000 300 800
1500 400 1000
2000 500 1500
3000 600 2000
3500 800 2500
4000 1000 3500
m ft
20 50
40 100
60 200
80 300
100 400
120 500
160 600
200 700
250 800
300 1000
400 1200
500 1500
600 2000
800 3000
4000
1. OPERATIONAL OVERVIEW
180 kHz 240 kHz
m ft m
10 40 10
20 80 20
40 120 30
60 200 40
80 300 60
100 400 80
120 500 100
160 600 120
200 700 160
250 800 200
300 1000 250
400 1200 300
500 1500 400
600 2000 500
800 2500 600
ft
30
60
90
120
150
200
250
300
400
500
600
800
1000
1500
2000
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