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2.11 How to Measure the Range to a Target.............................................................................. 2-15
2.11.1 How to turn range rings on/off ............................................................................... 2-15
2.11.2 How to measure range by the variable range marker (VRM) .............................. 2-16
2.12 How to Measure the Bearing to a Target........................................................................... 2-17
2.12.1 How to measure the bearing................................................................................... 2-17
2.12.2 How to select true or relative bearing.................................................................... 2-17
2.13 Pulse Length ........................................................................................................................ 2-18
2.13.1 How to select pulse length ...................................................................................... 2-18
2.13.2 How to change pulse length.................................................................................... 2-18
2.14 Collision Assessment by Offset EBL .................................................................................. 2-19
2.14.1 How to assess risk of collision by the offset EBL .................................................. 2-19
2.14.2 How to select point of reference for origin point of offset EBL............................. 2-20
2.15 How to Measure Range and Bearing Between Two Targets ............................................ 2-21
2.16 How to Off-Center the Display ........................................................................................... 2-22
2.17 Echo Stretch......................................................................................................................... 2-22
2.18 Echo Averaging.................................................................................................................... 2-23
2.19 Target Trails ........................................................................................................................ 2-24
2.19.1 True or relative trails.............................................................................................. 2-24
2.19.2 Trail time ................................................................................................................. 2-24
2.19.3 How to reset target trails........................................................................................ 2-24
2.19.4 How to temporarily remove trails .......................................................................... 2-24
2.20 Parallel Index (PI) Lines ..................................................................................................... 2-25
2.21 Markers ................................................................................................................................ 2-27
2.22 Automatic Picture Setup According to Navigation Purpose............................................. 2-28
2.22.1 How to select a picture setup option ...................................................................... 2-30
2.22.2 User-programmable picture setups........................................................................ 2-30
2.22.3 How to restore user settings................................................................................... 2-32
2.22.4 How to restore default picture setup options ........................................................ 2-32
2.23 Noise Rejector ...................................................................................................................... 2-32
2.24 How to Suppress Second-trace Echoes ............................................................................... 2-33
2.25 How to Adjust Brilliance of Screen Data ........................................................................... 2-34
2.26 Watch Alarm ........................................................................................................................ 2-35
2.27 Interswitch ........................................................................................................................... 2-36
2.27.1 How to show antenna information ......................................................................... 2-36
2.27.2 How to preset antenna and display combinations ................................................ 2-37
2.27.3 Antenna selection considerations........................................................................... 2-37
2.27.4 How to select an antenna........................................................................................ 2-38
2.28 Performance Monitor........................................................................................................... 2-39
2.29 Color and Brilliance Sets..................................................................................................... 2-40
2.30 Reference Position ............................................................................................................... 2-41
2.31 Cursor Position Data ........................................................................................................... 2-42
2.32 Drop Mark............................................................................................................................ 2-42
2.33 Anchor Watch....................................................................................................................... 2-43
2.34 Chart Radar Functions........................................................................................................ 2-44
2.34.1 Chart DISP box........................................................................................................ 2-44
2.34.2 Chart database information ................................................................................... 2-44
2.34.3 Temporary chart priority display control .............................................................. 2-46
2.34.4 Chart status box ...................................................................................................... 2-46
2.34.5 Chart alert function ................................................................................................ 2-46
3. Radar Observation ........................................................................................................................ 3-1
3.1 General ................................................................................................................................... 3-1
3.1.1 Minimum and maximum ranges .............................................................................. 3-1
3.2 False Echoes........................................................................................................................... 3-3
3.3 SART (Search and Rescue Transponder) ............................................................................. 3-4
3.3.1 SART description ....................................................................................................... 3-4
3.3.2 How to show SART marks on the radar display...................................................... 3-5
3.3.3 General remarks on receiving SART........................................................................ 3-5
3.4 RACON................................................................................................................................... 3-6
3.5 Radar Target Enhancer (RTE).............................................................................................. 3-6