Doppler data source requirements
Use of the Doppler Radar features requires the
following data sources to be available on your system (e.g. connected
to your multifunction display, via SeaTalkng® or NMEA 0183).
Doppler Data source requirements
Required data sources
| Data type | Example data source |
|---|---|
COG (Course Over Ground) |
GPS or GNSS receiver (MFD internal receiver or external receiver). |
SOG (Speed Over Ground) |
GPS or GNSS receiver (MFD internal receiver or external receiver). |
Recommended data source
| Data type | Example data source |
|---|---|
HDG / HDT (True Heading) |
Compass or Autopilot sensor providing Fastheading data (e.g. Evolution EV-1 / EV-2). |
Note
A heading data source is not essential for Doppler operation. However it will improve the performance of Doppler mode at slower speeds (< 15 knots), when tide set and leeway are present.