ARPA/MARPA Radar Targets
If you have an ARPA/MARPA enabled radar that outputs standard NMEA 0183, you can connect it to your PC.
Chart Navigator Pro is designed to receive the following types of information from a ARPA/MARPA radar:
- Valid target
- Dangerous target
- Harmless target
- Target CPA / TCPA / COG / Speed / Range
It then plots the standard symbols for these targets on top of the chart. For example, it plots a Triangle for a dangerous target.
Chart Navigator Pro does not overlay radar images themselves on top of charts. It only overlays ARPA/MARPA targets.
Definitions and additional information:
ARPA: Automatic Radar Plotting Aid
MARPA: Mini ARPA
CPA: Closest Point of Approach
TCPA: Time to CPA
COG: Course Over Ground
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