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1. OPERATIONAL OVERVIEW
1-11
1.6 Choosing Basic Range
The basic range may be chosen with the [RANGE] switch from the eight ranges
listed below. These eight ranges may be programmed as desired on the RANGE
SETTING menu. For details, see page 3-5.
RANG
E
30ft
60ft
250ft
500ft
1000ft
1600ft
3000ft
120ft
Range setting window (example: feet)
Basic ranges (default settings)
Range Switch Position
Range Unit
1 2 3 4 5 6 7 8
Feet (default) 30 60 120 250 500 1000 1600 3000
Meter 10 20 40 80 150 300 500 1000
Fathom 5 10 20 40 80 160 250 500
Hiro (Japanese) 6 12 25 50 100 200 300 600
Passi/Braza 6 12 25 50 100 200 300 600
Note 1: This setting must be done within five seconds after rotating the [RANGE]
switch once, otherwise the range window will be erased.
Note 2: Range for high and low frequencies can be set separately.
Note 3: The unit of depth measurement may be chosen from the SYSTEM
SETTING menu. For details, see DEPTH UNIT on page 3-2.