Northrop Grumman Sperry Marine VisionMaster FT, Руководство пользователя

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Radar/Chart Radar User Guide Targets
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3. An Action Required window appears
requesting confirmation of which other
data types should be received from the
selected source i.e. if SOG data type
has been changed then the system
prompts to change the COG data type
from echo reference to the sensor
source selected for SOG.
4. Click on the Apply button, the echo
reference data source is removed from
the selected target.
The echo reference target velocity is set to
unusable when the following apply:

the system is set to standby;

the target goes beyond the maximum
tracking range;

the echo referenced target is lost.
The echo reference target will be dropped when the following apply:

the system is set to standby;

the target goes beyond the maximum tracking range;

the target is lost for more than 60 seconds.
A Lost Echo Reference alert will be raised if the system is switched to
Standby in echo reference mode.