Current
A current sensor can be connected to the SN90 system. This can for example be an acoustic Doppler current profiler (ADCP). You can read the numerical value of the water current's velocity (the vector information) in the view's bottom right corner.
Bearing / Distance / Depth
The position (bearing and distance) and depth of the cursor's location is shown in the lower right corner of the view. The depth is calculated from the current tilt and the distance from the vessel.
Manual Track
You can start manual tracking by placing multiple markers on a target echo that moves in the view. One or more markers can be placed in the view to identify specific echoes.Each marker is shown as a small triangle with or without a short identifying label. You can see the latest marker's course and speed in the view's lower right corner. The values are calculated based on the last two markers you created and the time between them.
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1 |
Place the cursor on the object you wish to be marked. |
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2 |
Right-click and select Place Marker on the shortcut menu. |
The Track Course, Track Speed, and Track Distance values offered now relate to the previous marker you created. The physical location of the individual markers and the specific information provided for the latest marker show you the historical
path of the chosen target.
TipOnce an echo has been provided with a marker in the display presentation it is regarded as an object. The Objects menu provides a list of all current objects. This includes all types of objects including those classified as targets.