12.1 Fishnder introduction
Warning: Sonar operation
• NEVER operate the sounder with the boat out of
the water.
• NEVER touch the transducer face when the sounder
is powered on.
• SWITCH OFF the sounder if divers are likely to be
within 25 ft (5 m) of the transducer.
Fishnder overview
The shnder application provides a detailed view of the sh and
seabed under your vessel, enabling you to accurately distinguish
between different sizes of sh, bottom structure, and underwater
obstacles. The standard shnder image is a historical, scrolling
bottom graph with range and sonar frequency automatically selected
by the system.
The various functions and features of the shnder application
include:
• Preset modes for easy optimal operation.
• Display modes (Zoom, A-Scope or Bottom Lock).
• Adjustable range and zoom.
• Finding bottom feeding sh with the bottom lock display mode.
• Clutter and gain options to simplify the image.
• Pausing and adjusting the speed of the scrolling image.
• Using waypoints to mark a position.
• Determining depths and distances of targets.
• Fishnder alarms (sh, depth or water temperature).
Fishnder screen
The shnder displays a scrolling image of the seabed, updating
from the right as your vessel makes progress.
Example shnder screen
The shnder window includes the following aspects:
• The bottom together with any bottom structure such as reefs and
shipwrecks etc.
• Target images indicating sh.
• A status bar noting the frequency and gain settings.
• The bottom depth.
Status icon
The shnder status icon is located in the top-right section of the
screen:
150 C-Series Widescreen user reference
