Furuno 1823C-BB, Operator'S Manual

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2.15 Zoom........................................................................................................................ 2-18
2.15.1 Zooming in on radar targets .......................................................................... 2-18
2.15.2 Zooming in on ARP, TTM targets................................................................... 2-18
2.16 Shifting the Picture ................................................................................................... 2-19
2.16.1 Manual shift .................................................................................................. 2-19
2.16.2 Automatic shift............................................................................................... 2-20
2.17 Using the Offset EBL................................................................................................ 2-21
2.17.1 Predicting collision course............................................................................. 2-21
2.17.2 Measuring range & bearing between two targets........................................... 2-22
2.18 Echo Trails ............................................................................................................... 2-23
2.18.1 Trail time ....................................................................................................... 2-23
2.18.2 Starting echo trails ........................................................................................ 2-24
2.18.3 Trail gradation ............................................................................................... 2-24
2.18.4 Trail color ...................................................................................................... 2-25
2.18.5 Echo trail mode ............................................................................................. 2-25
2.19 Echo Stretch............................................................................................................. 2-26
2.20 Echo Averaging ........................................................................................................ 2-27
2.21 Outputting TLL Data ................................................................................................. 2-28
2.22 Guard Alarm............................................................................................................. 2-29
2.22.1 Setting a guard alarm zone ........................................................................... 2-29
2.22.2 When the alarm is violated… ........................................................................ 2-30
2.22.3 Canceling the guard alarm ............................................................................ 2-30
2.23 Watchman................................................................................................................ 2-31
2.23.1 How watchman works ................................................................................... 2-31
2.23.2 Turning on/off watchman ............................................................................... 2-31
2.23.3 Setting watchman stand-by interval............................................................... 2-31
2.24 Suppressing Second-trace Echoes .......................................................................... 2-32
2.25 Waypoint Marker ...................................................................................................... 2-33
2.26 ARP, TTM Operation ................................................................................................ 2-34
2.26.1 Activating/deactivating ARP, TTM.................................................................. 2-35
2.26.2 Acquiring and tracking targets (ARP)............................................................. 2-36
2.26.3 Displaying target number (ARP, TTM) ........................................................... 2-37
2.26.4 Terminating tracking of ARP targets .............................................................. 2-38
2.26.5 Setting vector attributes (ARP)...................................................................... 2-39
2.26.6 Displaying past position (ARP)...................................................................... 2-40
2.26.7 ARP, TTM target data .................................................................................... 2-41
2.26.8 CPA/TCPA alarm (ARP) ................................................................................ 2-42
2.26.9 Lost target alarm (ARP) ................................................................................ 2-43
2.27 Interpreting the Radar Display.................................................................................. 2-44
2.27.1 General......................................................................................................... 2-44
2.27.2 False echoes ................................................................................................ 2-46
2.27.3 SART (Search and Rescue Transponder) ..................................................... 2-48
2.27.4 Racon (Radar Beacon) ................................................................................. 2-50
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