Features
Target Tracking (TT:ARPA) / AIS
Target Association (Fusion)- An AIS-equipped ship may be displayed by both AIS and ARPA symbols. This is because the AIS position is measured by a GPS navigator in L/L while the ARPA target blip and data are measured by range and bearing from own ship. When the symbols are within an operator-set criteria, the ARPA symbol is merged with the AIS symbol. The criteria is determined by the differences in range, bearing, course, speed, etc.
- Data Display
- When any mark on the electronic chart is selected, related information about the object such as a buoy, lighthouse, sunken vessel, etc., will be shown in the data cell. Additionally, other navigational information including both own ship's navigational, as well as other ship's information, from ARPA can also be presented.
- Symbols for AIS
- AIS COG/SOG vector changes its length with speed. ROT mark is viewable at the Heading line vector tip when a target ship is equipped with a FURUNO satellite compass SC-50/110 or gyrocompass which can talk in ROT serial sentence.
- Symbols for ARPA(TT)
- Past Position Display
The ARPA displays equally time-spaced dots marking the past positions of any targets being tracked. A new dot is added during preset time intervals until the preset number is reached. AIS also displays past position dots.
