3 Operating procedures
3-6
3
Setting the image range: [RANGE], [Tilt angle], and [GAIN]
3.1.2
1. Press the [RANGE +] key and the [RANGE -] key to change the scan range.
Press the [RANGE +] key to increase the range.
Press the [RANGE -] key to decrease the range.
The range can be switched between 16 ranges. You can also select from four types of
ranges.
Refer to the other initial settings and range setting items for details about range settings.
2. Set the tilt angle with the [Tilt angle] knob.
Turn it to the left (counterclockwise) to make the sonic beam's tilt angle shallower (toward
the sea's surface).
Turn it to the right (clockwise) to make the sonic beam's tilt angle deeper (toward the sea
floor).
The tilt angle can be incremented in steps of 1° from -5° to 60°.
●
Changing the tilt angle allows you to detect schools of fish from the surface to the floor
of the sea.
●
To set the tilt angle, consider the depth of your target fish, the depth of the water and
the speed of your ship when you are fishing.
3. Turn the [GAIN] knob to adjust the image's output.
Turn it to the right (clockwise) to raise the gain.
Turn it to the left (clockwise) to lower the gain.
●
Consider the noise and the type of fish you are trying to catch when you set the gain.
-
5
°
0
°
60
°
Tilt angle
Sea floor
俯角
30
°
Display of the tilt angle
Tilt angle
Summary of Contents for JFS-280
Page 2: ......
Page 3: ...A General Information Before you begin 7ZPNA2401...
Page 4: ......
Page 34: ......
Page 36: ......
Page 38: ...1 Overview of the equipment 1 2 1...
Page 43: ...1 7 1 Overview of the equipment 1 Diagram 1 1 Exterior view of the NWZ 207 display unit...
Page 44: ...1 Overview of the equipment 1 8 1 Diagram 1 2 Exterior view of the NCH 578 keyboard...
Page 47: ...1 11 1 Overview of the equipment 1 Diagram 1 5 Exterior view of the NKF 2800 hoisting device...
Page 50: ...2 Names and Functions of Parts 2 2 2...
Page 90: ...3 Operating procedures 3 28 3...
Page 148: ...5 Adjusting How Images Appear 5 34 5...
Page 267: ...7 33 7 Other Items 7...
Page 274: ...7 Other Items 7 40 7 7 6 2 Test Ring Number 7 6 3 Reservation Settings...
Page 282: ...8 Maintenance and inspections 8 2 8...
Page 288: ...8 Maintenance and inspections 8 8 8...
Page 290: ...9 Malfunctions and after sales service 9 2 9...
Page 294: ...9 Malfunctions and after sales service 9 6 9...
Page 296: ...10 Disposal 10 2 10...
Page 298: ...10 Disposal 10 4 10...
Page 300: ...11 Specifications 11 2 11...
Page 306: ...11 Specifications 11 8 11...
Page 308: ...12 Other 12 2 12...
Page 309: ...12 3 12 Other 12 12 1 List of Menus...
Page 310: ...12 Other 12 4 12...
Page 311: ...12 5 12 Other 12...
Page 312: ...12 Other 12 6 12...
Page 313: ...12 7 12 Other 12...
Page 314: ...12 Other 12 8 12...
Page 315: ...12 9 12 Other 12...
Page 316: ...12 Other 12 10 12...
Page 317: ...12 11 12 Other 12...
Page 318: ...12 Other 12 12 12...
Page 319: ...12 13 12 Other 12...
Page 320: ...12 Other 12 14 12 12 2 Setting the Colors of the Sonar Display...
Page 321: ...12 15 12 Other 12...
Page 322: ...12 Other 12 16 12 12 3 Setting the Colors of the Fish Finder Display...
Page 323: ...12 17 12 Other 12 12 4 Sonar Range and Initial Setting Values for the Fish Finder Range...
Page 326: ...12 Other 12 20 12...
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