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1. OPERATION
1-44
1.37 Characteristics Curve
You can change the characteristics curve to reduce unwanted weak echoes (sea re-
flections, etc.). Select [1], [2] or [3] depending on conditions when unwanted weak
echoes hide wanted targets.
1. Press the MENU key to open the menu.
2. Use S or T to select [Echo] and press the ENTER key.
3. Use S or T to select [Display-Curve] and press the ENTER key.
Display-Curve options
4. Use S or T to select [1], [2] or [3] then press the ENTER key.
[1]: Reduce weak echoes.
[2]: Normal use
[3]: Display weaker echoes in stronger color compared to [1].
Display curve
5. Press the MENU key to close the menu.
3
2
1
Input level
Echo color
strength
Strong
Strong