Operator's Manual Part 1

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2.25 ARPA Operation .................................................................................................................... 2-32
2.25.1 Activating/deactivating ARPA.......................................................................................... 2-33
2.25.2 Acquiring and tracking targets......................................................................................... 2-34
2.25.3 Terminating tracking of targets........................................................................................ 2-35
2.25.4 Vector attributes .............................................................................................................. 2-36
2.25.5 Past position display ....................................................................................................... 2-37
2.25.6 Displaying target data ..................................................................................................... 2-38
2.25.7 CPA/TCPA alarm............................................................................................................. 2-39
2.25.8 Lost target alarm ............................................................................................................. 2-40
2.26 Interpreting the Radar Display .............................................................................................. 2-41
2.26.1 General ........................................................................................................................... 2-41
2.26.2 False echoes................................................................................................................... 2-43
2.26.3 SART (Search and Rescue Transponder) ...................................................................... 2-45
2.26.4 Racon (Radar Beacon) ................................................................................................... 2-47
3. PLOTTER OPERATION.....................................................................................3-1
3.1 Plotter Displays ......................................................................................................................... 3-1
3.1.1 Normal plotter display ......................................................................................................... 3-1
3.1.2 Compass display................................................................................................................. 3-3
3.1.3 Highway display .................................................................................................................. 3-5
3.1.4 Nav data display.................................................................................................................. 3-6
3.2 Selecting a Presentation Mode ................................................................................................. 3-7
3.2.1 North-up .............................................................................................................................. 3-7
3.2.2 Course-up ........................................................................................................................... 3-7
3.2.3 Auto course-up.................................................................................................................... 3-8
3.3 Cursor........................................................................................................................................ 3-8
3.3.1 Turning on the cursor, shifting the cursor............................................................................ 3-8
3.3.2 Turning off the cursor, returning own ship marker to screen center.................................... 3-8
3.4 Shifting the Display.................................................................................................................... 3-9
3.5 Selecting Chart Scale/Range.................................................................................................... 3-9