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2. Move the cursor onto the sub monitor and right-click on the screen.
The setting menu for external echo sounder appears.
3. Select the [Calibration] menu from the [System] menu.
The [Calibration] menu appears.
4. Set the calibration parameters referring to the table below:
Item
[Zero Line Rejection]
[Zero Line Area]
[Draft]
[Fish Size]
[Sound Speed]
5. Set the calibration parameters for bottom level and gain adjust from the [HF] or
[LF] menu under the [Calibration] menu.
Item
Setting values
[Bottom Level]
[-40] to [40]
(default: [0])
[Gain ADJ]
[-50] to [50]
(default: [0])
6. Select [OK] to close the menu.
Setting values
[Off],
[On] (default)
[m]: 1.4 to 3.0
[ft]: 4.5 to 9.8
[fm]: 0.7 to 1.6
[HR]: 0.9 to 2.0
[pb]: 0.8 to 1.8
(The minimum value
is default.)
[m]: -9.0 to 30.4
[ft]: -30.0 to 99.9
[fm]: 0.7 to 1.6
[HR]: 0.9 to 2.0
[pb]: 0.8 to 1.8
(default: 0.0)
[-80] to [100]
(default: [0])
[200.0] to [2000.0]
(default: [1500])
Set the strength at which an echo is deter-
mined to be the bottom. Adjust this setting
carefully as an excessively high setting may
hide fish located near the seabed.
Adjust this setting if the gain is too high or too
low, or the gain for the low and high frequen-
cies appears unbalanced.
3. INITIAL SETTINGS
Meaning
Turn the zero line (transmission line) on
or off.
Adjusts the transmission line.
The default depth display shows the dis-
tance from the transducer.
Compensate for incorrect fish size indi-
cations (%).
Setting value (%)
-80
-75
-65
-50
+50
+100
Calibration for speed of sound (m/s).
Meaning
Adjustment
1/5
1/4
1/3
1/2
x1.5
x2
3-15
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