Chapter 3    ADJUST THE RADAR ECHO ............................................................ 44 
3.1  CHANGE RANGE ................................................................................................................... 44 
3.2  SENSITIVITY ADJUSTMENT ................................................................................................ 45 
3.3  SEA CLUTTER SUPPRESSION ........................................................................................... 46 
3.4  RAIN/SNOW CLUTTER SUPPRESSION ............................................................................. 47 
3.5  SCREEN BRILLIANCE (another operation) ........................................................................... 48 
Chapter 4    VRM AND EBL FUNCTION ................................................................ 50 
4.1  OPERATION OF VRM, EBL .................................................................................................. 50 
4.2  EXAMPLE OF VRM FUNCTION ............................................................................................  50 
4.3  EXAMPLE OF EBL FUNCTION ............................................................................................. 51 
Chapter 5    VARIOUS FUNCTION ICONS ............................................................  52 
5.1  MOB FUNCTION (MAN OVERBOARD) ................................................................................  52 
5.2  OFF-CENTER FUNCTION .....................................................................................................  53 
5.3  CURSOR FUNCTION ............................................................................................................ 54 
5.4  GUARD ZONE FUNCTION ....................................................................................................  55 
5.5  RADAR TRAILS ...................................................................................................................... 56 
5.5.1  SETUP THE TRAIL LENGTH ..................................................................................... 56 
5.5.2    SETUP THE RADAR TRAILS REF LEVEL, etc ......................................................... 57 
5.6  AIS OPERATIONS ................................................................................................................. 59 
5.7  TT OPERATIONS ................................................................................................................... 60 
5.8  MODE FUNCTION ................................................................................................................. 62 
5.9  SWITCHING DAY / NIGHT MODE ........................................................................................ 63 
5.10  USER OPTION KEY ............................................................................................................. 64 
5.11  MARK FUNCTION ................................................................................................................ 65 
5.11.1  MEMO ........................................................................................................................ 65 
5.11.2  LINE FUNCTION ....................................................................................................... 66 
5.11.3  SYMBOL MARKER ................................................................................................... 68 
5.12  RADAR ECHO ...................................................................................................................... 69 
5.12.1  PULSE LENGTH ....................................................................................................... 70 
5.12.2  IR (INTERFERENCE REJECTION) .......................................................................... 70 
5.12.3  TARGET ENHANCE ................................................................................................. 71 
5.12.4  PROCESS ................................................................................................................. 71 
5.12.5  VIDEO LATITUDE ..................................................................................................... 71 
5.12.6  VIDEO NOISE REJECTION ...................................................................................... 72 
5.12.7  TIMED TX .................................................................................................................. 72 
5.13  TUNING ................................................................................................................................ 73 
5.14  MOTION MODE .................................................................................................................... 74 
5.15  VECTOR LENGTH ............................................................................................................... 75 
5.16  MARKER ............................................................................................................................... 75 
5.17  TARGET................................................................................................................................ 76 
5.17.1  FUNCTION ON/OFF .................................................................................................. 77 
5.17.2  CPA LIMIT .................................................................................................................. 77