Instruction Manual
vi RA51/52/53/54/55 INSTRUCTION MANUAL – 05
5.5.1.9 Establishment of the indication of the RANGE RINGS (RINGS)------------------------------------------------------- 41
5.5.1.10 Variable range function (VAR RNG)------------------------------------------------------------------------------------------- 42
5.5.1.11 Output the position of the cursor location to another NMEA device (TARGET)------------------------------------ 42
5.5.1.12 Determine the distance and bearing to a marker
(+MK LINE) ---------------------------------------------------------- 42
5.5.2 Nav (Navigation) Menu --------------------------------------------------------------------------------------- 44
5.5.2.1 Changing display mode (MODE) ---------------------------------------------------------------------------------------------- 44
5.5.2.2 Guard Zone (GZ)------------------------------------------------------------------------------------------------------------------- 44
5.5.2.3 Off centering the screen display (OFF-C)------------------------------------------------------------------------------------ 45
5.5.2.4 Setting the SLEEP function (SLEEP) ----------------------------------------------------------------------------------------- 45
5.5.2.5 Activating Automatic Tracking Aid (ATA) ------------------------------------------------------------------------------------ 46
5.5.3 Echo Menu ------------------------------------------------------------------------------------------------------ 47
5.5.3.1 Sensitivity adjustment (GAIN)--------------------------------------------------------------------------------------------------- 47
5.5.3.2 Removing Sea clutter (STC)----------------------------------------------------------------------------------------------------- 47
5.5.3.3 Removing rain and snow clutter (FTC) --------------------------------------------------------------------------------------- 48
5.5.3.4 Adjusting receiver tuning (TUNE) ---------------------------------------------------------------------------------------------- 48
5.5.3.5 Echo expansion (ST)-------------------------------------------------------------------------------------------------------------- 48
5.5.3.6 Displaying track of targets (TRACK)------------------------------------------------------------------------------------------- 49
5.5.3.7 Enlarging a selected area (ZOOM) -------------------------------------------------------------------------------------------- 49
5.5.3.8 Increasing average transmitter power (S/L) --------------------------------------------------------------------------------- 50
5.5.4 SETUP Menu --------------------------------------------------------------------------------------------------- 51
5.5.4.1 Selecting the screen display (WINDOW)------------------------------------------------------------------------------------- 51
Funtions Available On Each Screen------------------------------------------------------------------------------------------- 51
Screen Modes and Operations ------------------------------------------------------------------------------------------------- 52
(a) PPI Screen------------------------------------------------------------------------------------------------------------------------- 52
(b) PPI/SEMI3D Screen------------------------------------------------------------------------------------------------------------- 52
(c) PPI/PPI Screen------------------------------------------------------------------------------------------------------------------- 52
(d) PPI/NAV Screen------------------------------------------------------------------------------------------------------------------ 53
(e) ALL PPI Screen ------------------------------------------------------------------------------------------------------------------ 53
(f) ALL PPI/PPI Screen------------------------------------------------------------------------------------------------------------- 53
(g) MOB Screen----------------------------------------------------------------------------------------------------------------------- 53
5.5.4.2 Switching screens on PPI/PPI screen (SEL WIN)-------------------------------------------------------------------------- 54
5.5.4.3 Reversing the screen (PICTURE)---------------------------------------------------------------------------------------------- 54
5.5.4.4 Slave Display Operation---------------------------------------------------------------------------------------------------------- 54
5.5.4.5 Fault Diagnosis by Self Check (SYSTEM CHECK)------------------------------------------------------------------------ 54
5.5.4.6 Changing the custom setting (CUSTOM) ------------------------------------------------------------------------------------ 56
5.5.4.6.1 Changing the settings of the soft keys (KEY ASSIGN)----------------------------------------------------------------- 56
5.5.4.6.2 Changing the settings in PRESET1 screen ------------------------------------------------------------------------------- 58
5.5.4.6.3 Changing the settings in PRESET2 screen ------------------------------------------------------------------------------- 60
HOLD function-------------------------------------------------------------------------------------------------------------------- 61
5.5.4.6.4 Changing the content of priority for NMEA input (NMEA PRESET)------------------------------------------------- 62
5.5.4.6.5 Initial adjustment settings (ADJUSTMENT) ------------------------------------------------------------------------------- 62
(1) Adjusting the distance (TIMING ADJ)--------------------------------------------------------------------------------------- 62
(2) Adjusting the angle (HEAD ADJ)--------------------------------------------------------------------------------------------- 63
(3) Adjusting tuning circuit (TUNING CAL)------------------------------------------------------------------------------------- 63
(4) Adjusting the antenna height (ANTENNA)--------------------------------------------------------------------------------- 64
(5) Setting automatic GAIN circuit (GAIN)-------------------------------------------------------------------------------------- 65
(6) Setting automatic STC circuit (STC) ---------------------------------------------------------------------------------------- 65
(7) Setting HARBOR STC circuit (HARBOR)---------------------------------------------------------------------------------- 66
CHAPTER 6 MAINTENANCE AND INSPECTION ........................... 67