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Ground Tracking Mode:
Shows absolute ship and tide
movements based on ground. (Bottom echo required.)
Water Tracking Mode:
Shows movements of ship and tide
relative to near-surface water.
Nav-aided Mode:
Shows ship’s movement measured by the
external navigation equipment, and the tide movements
based on the nav speed data.
Auto Tracking Mode:
Uses ground tracking mode when
bottom echo is available. Switches to water tracking mode
(or nav-aided mode) when bottom echo is lost. Bottom echo
is continuously searched for, and if re-acquired the ground
tracking mode is restored.
Setting measuring depths
1. Press
the
MENU
key.
2.
Press
◄
/
►
to select DEP menu.
3.
Press
/
to select layer.
4.
Press
/
to set depth.
5.
Repeat steps 1-4 to set other layers.
Note that measuring depth can also be set on the echo display.
See next page for further details.
