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2.25 ARP (option), TTM operation ................................................................................... 2-34
2.25.1 Activating/deactivating ARP, TTM.................................................................. 2-35
2.25.2 Acquiring and tracking targets (ARP only)..................................................... 2-36
2.25.3 Displaying target number (internal, external ARP)......................................... 2-37
2.25.4 Terminating tracking of ARP targets .............................................................. 2-38
2.25.5 Setting vector attributes (ARP)...................................................................... 2-39
2.25.6 Displaying past position display (ARP).......................................................... 2-40
2.25.7 ARP, TTM target data.................................................................................... 2-41
2.25.8 CPA/TCPA alarm (ARP) ................................................................................ 2-42
2.25.9 Lost target alarm (ARP)................................................................................. 2-43
2.26 Interpreting the Radar Display ................................................................................. 2-44
2.26.1 General......................................................................................................... 2-44
2.26.2 False echoes................................................................................................. 2-46
2.26.3 SART (Search and Rescue Transponder) ..................................................... 2-48
2.26.4 Racon (Radar Beacon).................................................................................. 2-50
3. PLOTTER OPERATION ................................................................................3-1
3.1 Plotter Displays.......................................................................................................... 3-1
3.1.1 Full-screen 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 Presentation Mode .................................................................................................... 3-7
3.2.1 North-up.......................................................................................................... 3-7
3.2.2 Course-up ....................................................................................................... 3-8
3.2.3 Auto course-up................................................................................................ 3-8
3.3 Shifting the Display.................................................................................................... 3-9
3.4 Chart Scale................................................................................................................ 3-9
3.5 Chart Cards............................................................................................................. 3-10
3.5.1 Chart card overview ...................................................................................... 3-10
3.5.2 Indices and chart enlargement ...................................................................... 3-11
3.5.3 FURUNO and NavCharts™ .......................................................................... 3-12
3.5.4 C-MAP cards................................................................................................. 3-14
3.6 Working with Track .................................................................................................. 3-18
3.6.1 Displaying track............................................................................................. 3-18
3.6.2 Stopping, restarting plotting of own ship track ............................................... 3-19
3.6.3 Changing track color (MODEL1722C series)................................................. 3-20
3.6.4 Track plotting method and interval for own ship track.................................... 3-21
3.6.5 Changing own ship track/mark distribution setting......................................... 3-22
3.6.6 Erasing track................................................................................................. 3-23
3.7 Marks, Lines............................................................................................................ 3-25
3.7.1 Entering a mark............................................................................................. 3-25
3.7.2 Changing mark attributes .............................................................................. 3-25
3.7.3 Selecting line type......................................................................................... 3-26
3.7.4 Erasing marks, lines...................................................................................... 3-27
3.8 Waypoints................................................................................................................ 3-29
3.8.1 Entering waypoints........................................................................................ 3-29
3.8.2 Editing waypoint data.................................................................................... 3-32