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Place a small amount of liquid water on the ice
and set the sonar sensor on the water allowing
the unit to freeze to the ice.
If there are any air pockets between the sonar
senor and ice, or air on the water below the ice,
the unit will not work properly and will require
you to try another spot, or cut a hole in the ice
to use.
NOTE:
To remove the sonar sensor from the frozen ice,
gently tap sonar sensor at the base with your
hand. If it will not come loose, spray a small
amount of water on the ice surface around the
base and repeat above step until the sonar
sensor is easily removed.
Never use a blunt to strike the sonar sensor as
this may cause damage to the sensitive internal
electronics.
