Operation Manual

Chapter 6: Fishfinder application 73
6.1 The fishfinder screen
The fishfinder displays a scrolling image of the seabed, updating
from the right as your vessel makes progress.
Status Icon
The fishfinder status icon is located in the top-right section of the
monitor:
6.2 How the fishfinder works
The fishfinder application uses a built in processor to interpret
acoustic signals and build up a detailed picture of the seabed.
A transducer on the bottom of the boat sends pulses of sound
waves into the water and measures the time it takes for the sound
wave to travel to the bottom and back. The returning echoes are
affected by bottom structure and by any other objects in their path,
for example reefs, wrecks, shoals or fish.
The strength of the echoes is indicated on the display by different
colors. You can use this information to determine the shape and
make-up of the seabed, or the size of shoals, or of other objects.
Icon animated - fishfinder is operating.
Icon static - the fishfinder transducer is connected but not
transmitting.
Icon greyed-out - no fishfinder transducer is connected.
D9534_1
(animated icon)