Yachting Electronic Co. NAKI8850B, User Manual

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smooth flow of water.
b) Electrical noise from the boat's motor can interferes
with the sonar, which will cause some weaker signals
being eliminated. Try increasing the Noise Reject level
or routing Fishfinder”s power and the transducer cable
away from the electrical source.
5. Nothing 5. Nothing appe appears on the display even you can see fish ars on the display even you can see fish
under the transducer. under the transducer.
a) Check the transducer installation to make certain it is
properly installed. An improper installation may cause
sonar signal lost.
b) Oil, dirt and fuel might cause a film to form on the
transducer and reduce its effectiveness. Cleaning the
surface of the transducer might help.
c) Electrical noise from the boat's motor can interferes
with the sonar, which will cause some weaker signals
being eliminated.
6. The display 6. The display beco become so cluttered that you even could me so cluttered that you even could
not achieve a clear bottom not achieve a clear bottom