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3.3.6 Eliminating Interference
It is possible to set it only to the [FISH] screen. The interference elimination is used to remove the
acoustic noise that enters from another ship and the noise appearing at random. Use it by 'Off' usually.,
and make it to 'On' When you want to reduce the effects of noise.
1 Push the [MENU] key. The main menu is displayed.
2 The screen Picture setting is selected from the main menu.
3 [FISH≫] is selected from "Picture setting", and "Fish Finder Picture Setting" is displayed
with the [ENT] key.
4 ON or OFF is selected from the Noise Reduce, and it fixes with the [ENT] key.
3.3.7 Assistance of Setting
Since it is a menu for servicemen, please use it in OFF usually.
Assistance of a setting computes and displays the reference value of each setting value of
compensation of the attachment angle of required transducer, and ship speed compensation, when
measuring a current on a GPS standard.
In the case of the above-mentioned example
Input value “-0.2” of S clause as ship speed correction value after opening a menu.
Input value"+0.3" of D clause as angle correction value after opening a menu.
When using assistance of a setting, it needs to be cautious of the following matter.
(1) To measure ship speed by bottom tracking stably
(2) To navigate linearly without carrying out acceleration and a slowdown, and a turning round
(3) To be flat a sea bottom
(4) To be a little roll-pitch of a vessel.
(5) The state of (1) - (4) should be continuing 30 minutes or more.
1 Press [MENU] key. A main menu is displayed.
2 Select Setting assistance from a main menu.
3 After selecting either of OFF/ON from setting assistance, fix it ([ENT] key).
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