99
Symptoms
Causes
Remedy
Many noise appear
on the screen.
Too high sensitivity.
Interference with other boat’s
fish finder.
Noise from engine.
Decrease the sensitivity.
Or set to Auto Gain (automatic
sensitivity control).
Noise disappears if the
adequate distance between own
boat and other keeps.
Change the routing of cables such as
transducer cable, power supply
cable, or etc. (Separate from engine
as far as possible.)
Summary of Contents for HE-6801
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