TABLE OF CONTENTS
vi
1.23.6 How to change the settings on the current display to the
recommended settings.................................................................................1-34
1.24 How to View Chart Software Version No., Chart System Information, and
Operator's Manual.................................................................................................... 1-38
1.25 Tips (operational guidance) ..................................................................................... 1-39
2. RADAR, CHART RADAR OPERATION................................................................2-1
2.1 How to Transmit......................................................................................................... 2-1
2.2 How to Tune the Radar Receiver............................................................................... 2-1
2.2.1 How to initialize tuning ................................................................................... 2-1
2.2.2 Automatic tuning ............................................................................................ 2-1
2.2.3 Manual tuning.................................................................................................2-2
2.3 Pulse Length ..............................................................................................................2-2
2.3.1 How to select a pulse length ..........................................................................2-2
2.3.2 How to change the pulse length.....................................................................2-3
2.4 How to Adjust the Sensitivity...................................................................................... 2-3
2.5 How to Suppress Sea Clutter..................................................................................... 2-3
2.5.1 How to reduce sea clutter automatically ........................................................ 2-4
2.5.2 How to reduce sea clutter manually............................................................... 2-4
2.6 How to Suppress Rain Clutter.................................................................................... 2-5
2.6.1 How to reduce rain clutter automatically ........................................................2-5
2.6.2 How to reduce rain clutter manually...............................................................2-5
2.7 Interference Rejector.................................................................................................. 2-7
2.8 Echo Stretch............................................................................................................... 2-7
2.9 Echo Averaging.......................................................................................................... 2-8
2.10 Noise Rejector............................................................................................................ 2-9
2.11 Wiper........................................................................................................................ 2-10
2.12 How to Preset Controls for Specific Navigation Purpose ......................................... 2-10
2.12.1 How to select a customized echo................................................................. 2-12
2.12.2 How to edit a customized echo .................................................................... 2-12
2.12.3 How to restore a user customized echo to saved setting............................. 2-13
2.12.4 How to restore a user customized echo to factory default settings..............2-13
2.13 How to Suppress Second-trace Echoes ..................................................................2-14
2.14 Presentation Modes ................................................................................................. 2-14
2.14.1 Orientation modes........................................................................................ 2-14
2.14.2 How to select a presentation mode.............................................................. 2-15
2.14.3 Description of presentation modes............................................................... 2-16
2.15 How to Select the Range Scale ............................................................................... 2-18
2.16 How to Measure the Range to a Target................................................................... 2-19
2.16.1 How to measure the range by using a VRM ................................................ 2-19
2.16.2 How to set VRM attributes ........................................................................... 2-20
2.17 How to Measure the Bearing to a Target ................................................................. 2-21
2.17.1 How to measure the bearing........................................................................2-21
2.17.2 How to select bearing reference .................................................................. 2-22
2.18 Collision Assessment by Offset EBL........................................................................ 2-22
2.18.1 How to assess risk of collision .................................................................... 2-22
2.18.2 Point of reference for origin point of offset EBL ...........................................2-23
2.19 How to Measure the Range and Bearing Between Two Targets ............................. 2-24
2.20 How to Off-center the Display .................................................................................. 2-25
2.21 Target Trails............................................................................................................. 2-26
2.21.1 Target trails-related indications....................................................................2-26
2.21.2 True or relative target trails .......................................................................... 2-26
2.21.3 Trail time ...................................................................................................... 2-27
2.21.4 How to reset target trails .............................................................................. 2-27
2.21.5 How to temporarily remove all target trails from the display ........................ 2-27
2.21.6 Trail stabilization in true motion.................................................................... 2-27