Furuno 1823C - Page 5

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2.9 Presentation Mode.......................................................................................................2-8
2.9.1 Selecting a presentation mode..........................................................................2-8
2.9.2 Description of presentation modes....................................................................2-9
2.10 Measuring the Range............................................................................................... 2-11
2.10.1 Measuring range by range rings.................................................................... 2-11
2.10.2 Measuring range by cursor ........................................................................... 2-12
2.10.3 Measuring range by VRM ............................................................................. 2-13
2.10.4 Erasing a VRM, VRM indication....................................................................2-14
2.10.5 Erasing EBL/VRM data boxes.......................................................................2-14
2.10.6 Hiding EBL/VRM data boxes.........................................................................2-14
2.10.7 Moving EBL/VRM data boxes ....................................................................... 2-14
2.11 Measuring the Bearing ............................................................................................. 2-14
2.11.1 Measuring bearing by cursor.........................................................................2-14
2.11.2 Measuring bearing by EBL............................................................................ 2-14
2.11.3 Erasing an EBL, EBL indication.....................................................................2-15
2.11.4 Erasing EBL/VRM data boxes.......................................................................2-15
2.11.5 Hiding EBL/VRM data boxes.........................................................................2-15
2.11.6 Moving EBL/VRM data boxes........................................................................2-15
2.12 Erasing the Heading Line, North Marker ..................................................................2-16
2.13 Reducing Noise Interference....................................................................................2-16
2.14 Rejecting Radar Interference ................................................................................... 2-17
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