13
Fish 4430/4431 Installation and Operation Manual
Shadows
Shadows are areas where the ultrasonic beam cannot ‘see’. These
include hollows on the bottom or beside rocks and ledges where the
strong echo returned off the rock obscures the weaker echo of the
fish.
When looking for small objects including fish, users should consider
that there are places where fishfinders cannot ‘see’.
Shadow - where objects are hidden in the bottom echo.
These fish will be hidden in the bottom echo.
1 minute ago
30 seconds ago
Now
When the fish symbol option
is ON, any echo returned
that fits the profile of a fish is
displayed on the screen with a
fish symbol.
Air in water
(e.g. from
wake)
NAVMAN fishfinders display the most recent events on the right of the screen.
Moving boat
