Default Setting - Simrad SH90 - REFERENCE MANUAL REV A Reference Manual

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About Dead Reckoning
Dead reckoning is the process of estimating one's current
position based upon a previously determined position, or fix,
and advancing that position based upon measured velocity,
time, heading, as well as the effect of currents or wind. While
this method of navigation is no longer considered primary in
ships, it is still often used as a backup in case of failure of the
electronic navigation systems. Dead reckoning begins with a
known position, or fix. This fix is then advanced, mathematically,
by means of recorded heading, velocity, and time. The velocity is
determined by means of the Doppler log.
Related topics
• Setup menu on page 98

Default Setting

Dialog description
The parameter dialog opens when you click the
Default Setting
button in the
Default Setting
This function makes it possible to delete all the parameters
currently saved in the sonar's memory, and reinstall those
defined by Simrad instead; the factory default settings. These
default settings are identified with an asterisk in the different
parameter dialogs and menus, and will perform well under
normal conditions.
Default Settings dialog options
• : Click to load default settings. Note that the settings take
OK
effect immediately, and the sonar will automatically switch
to the Bow up display mode.
• : Click to cancel the operation. The parameter dialog
Cancel
will close, and no default settings will be loaded.
Related topics
• Setup menu on page 98
menu.
Setup
Parameters
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