RA40C/RA41C/RA42C Marine Radar Instruction Manual 1st Edition • Read this manual before using the equipment.
Index A Adjustment Distance ............................... 75 Angle.................................... 75 Tuning ................................. 76 Antenna height ..................... 77 Automatic gain...................... 78 Automatic STC...................... 78 ALL PPI Screen .............................. 64 ALL PPI/PPI Screen ........................ 65 B Bearing scale ................................. 26 Brightness ..................................... 29 Brightness of Panel ...............
Safety Symbols To prevent the risk of personal injury or damage to the equipment, the following safety symbols are used to indicate safety-related information. Insure that you clearly understand the meanings of the symbols BEFORE using the equipment. Symbols Used in Manual ! DANGER This indicates a very dangerous procedure that could result in serious injury or death if not performed properly.
• For Safety • WARNING • / •DO NOT OPEN T HE COVER EXCEPT SERVICE PERSONNEL. YOU MAY GET AN ELECTRIC SHOCK. •SWITCH OFF SHIPS MAIN AND PULL OFF MOTOR FUSE BEFORE MAINTENANCE. ROTATING ANTENNA MAY HIT YOU. • KEEP OFF DURING TRANSMISSION. 2 RADIATION LEVEL: 100W/m DISTANCE : 0.8m 2 RADIATION LEVEL: 10W/m DISTANCE : 8m • DO NOT DROP COVER. IT MAY HIT SOMEBODY.
• • • WARNING / • • • SEE INSTRUCT ION MANUALS BEFORE CONNECTING POWER. SAFETY INFORMATION IS WRITTEN IN. • ••••••••••••• •••••••••••• •••••••••••••• • EARTH CONNECTION ESSENTIAL BEFORE CONNECT ING POWER. YOU MAY GET AN ELECTRIC SHOCK. • •••••••••••••• ••••••••• •••••••••••• • DO NOT OPEN T HE COVER EXCEPT SERVICE PERSONNEL. HIGH VOLTAGE IS INSIDE. YOU MAY GET AN ELECTRIC SHOCK.
Installation Radio laws dictate that this radar may only be installed by properly licensed personnel. Licensing You must obtain a license as prescribed by the Radio Law to operate this unit. To Customers * To use this equipment effectively, the operation and maintenance procedure in this manual must be followed properly. Note that this equipment is only a navigational instrument having no warrant for navigation safety.
Contents For safety CHAPTER 1 OVERVIEW .................................................................... 1 CHAPTER 2 USING RADAR FOR THE FIRST TIME .............................. 2 1.1 Introduction................................................................................................. 1 1.2 Organization of This Manual ....................................................................... 1 2.1 What is a radar ? ...............................................................................
5.3.1 Powering On and Off...............................................................................30 5.3.2 Transmitting ...........................................................................................30 5.3.3 Adjusting brilliance of screen and key-backlight...................................31 5.3.4 Changing Distance Range (RANGE UP, RANGE DOWN) .......................31 5.3.5 Automatic adjustment (AUTO) ...............................................................31 5.3.
5.5.2 Nav (Navigation) Menu ............................................................................ 52 5.5.2.1 Changing display mode (MODE)....................................................... 52 5.5.2.2 Guard Zone (GZ) ................................................................................ 53 5.5.2.3 Shifting display in specific direction (OFF-C) .................................... 54 5.5.2.4 Setting of the SLEEP function(SLEEP) .............................................. 54 5.5.
8.4 8.5 8.6 8.7 8.8 External Interface ........................................................................................ 86 Standard set ................................................................................................. 87 Options ......................................................................................................... 87 External dimensions and weight ................................................................. 87 External connection and function ................
CHAPTER 1 OVERVIEW 1.1 Introduction The RA40C/41C/42C represents a compact, high-performance color marine radar that delivers a peak power output of 2 kW(RA40C) or 4 kW(RA41C/42C) from the antenna and uses an 10-inch color liquid crystal display. In addition to a microcomputer, it incorporates a video signal processing LSI and a newly developed LSI chip exclusively designed for radars, thus providing versatile functionality and high performance. Features 1.
CHAPTER 2. USING RADAR FOR THE FIRST TIME This chapter describes basic information on radars and explains technical terms used in radar operation for those who is using a radar for the first time. 2.1 What is a radar ? A marine radar is one of the navigation equipment installed on a ship. It emits a radio wave in very high frequency called a microwave from its antenna and receives the reflected radio wave from objects on the sea (e.g., other ships, buoys, and lands).
Beam width A beam width is defined as the width of the main lobe at an angle where the radiated power is halved as measured from the position from which the strongest radio wave is radiated. 2.2 Characteristics of Radar Wave Radio waves from the radar propagate while bending slightly along the terrestrial surface. This characteristic varies dependent on the density of the atmospheric air.
case, some objects produce a complete shadow and some produce a partial shadow. In an extreme case, the shadow of an object may extend to a position far away and cannot be displayed on the screen at all. Since these shadows can be discovered when installing an antenna, the problem can be avoided by changing the place of antenna installation to minimize the shadow. Targets in shadow zones are difficult to display on the screen.
3 1 HU Real echo Multiple echoes Fig.2-6 False echoes of radar (Multiple echoes) C. False echoes caused by side lobe The radiant beam emitted from an antenna contains side lobes in directions other than that of the main beam. Since the side lobe level is low, it in no way affects distant targets. However, if there is a strong reflecting target near the ship, it sometimes appear as a circular-arc false echo on the screen. ! CAUTION When located near large targets such as land, the ship's mast, etc.
D. Distant false echoes caused by duct phenomenon Depending on meteorological conditions, duct phenomenon sometimes occurs in temperature inverting layers of air. In such a case, the wave propagates erratically reaching a location surprisingly far away from the ship. In this case, a target present at a distant location more than the radar's maximum distance range appears on the screen presenting a false echo that can be misunderstood to be present nearer than the actual position.
Display modes This refers to a radar's display modes. There are four display modes depending on the direction in which the top of the screen faces with respect to the ship. Ship's Heading HM Ship's locus (not displayed on screen) Scheduled course Scheduled course North North 0.75 0.75 0.75 0.75 0.25 HU 0.25 NU 0.25 CU 0.25 TM North mark North EBL HU NU CU TM Fig.2-10 Display modes Head Up (HU) In this mode, the ship's heading always indicates the upward direction of the screen.
VRM (Variable Range Marker) This is a circular-shaped marker whose size can be changed as desired. You can use this marker when you want to examine the distance of an echo from your ship. When measuring the distance of an echo from your ship, be sure to measure at a point close to the center of the echo image on the screen. 0.75 0.25 HU Echo VRM VRM Fig.
STC (Sensitivity Time Control) Since echo signals received by the radar are strong when they are coming from a short distance, it is difficult to compare signal strength between each reflected signal. To overcome this difficulty, signal strength is adjusted in such a way that the received signal levels coming from a short distance are lowered and those from a long distance are raised. This function should prove useful when there are large reflected waves from sea surfaces during rough weather.
CHAPTER 3. INSTALLATION This chapter describes procedures for installing the RA40C/41C/42C radar in your ship and precautions to be observed during installation. Follow the procedure below to install the radar. Checking contents of your package Checking power supply voltage Determining place of installation Installing scanner unit Installing display unit Connecting cables Adjustment Connecting external equipment When discarding Your radar 3.
The package contains a 10m interconnecting cable as an accessory. also available as an option as listed in Tab.3-1. Longer cable is Tab.3-1 Optional Interconnecting Cable RA40C Product No. 242J160680B 242J160680C Cable length 15m 20m 25m 30m RA41C Product No. 24Y159099B 24Y159099C 24Y159099D RA42C Product No. 24Y159169B 24Y159169C 24Y159169D 242J160680D In addition to the above components included with your package, the following items are also required. Please prepare them separately.
Supply voltage used DC12V DC24V Main Fuse Motor Fuse 10A/250V or 125V (6.3• x 32mm) 8A/250V or 125V * (6.3• x 32mm) 5A/250V or 125V (5•x 20mm) T3.15A/250V or 125V * (5• x 20mm) •••Note: Marked * fuses are in the set as standard. 3.3 Determining Place of Installation 3.3.1 Scanner unit A radar's target detection capacity varies greatly depending on the fitted position of the scanner.
(a) A place where you can see the ship's bow when you raise your face from the radar screen. (b) A place where there is no direct sun-light to avoid display temperature up. (c) A place where there is good ventilation and minimum vibration. (d) A place where the display unit is apart more than the minimum safe distance from a magnet compass as listed in Tab.3-5 below. Tab.3-5 Minimum Safe Distance from Magnetic Compass Scanner unit Display unit Master compass Steering compass 2.0m 1.4m 2.0m 1.4m 3.3.
Horizontal line θ Line of sight Fig.
3.4 Installing Scanner Unit When you have decided the place of installation, install the scanner unit. If a mount base like the one shown below is available, it may be easier to install the scanner. If such a mount base is not available in your ship, you may install the scanner directly to the roof, etc. In such a case, pay attention to the water drain tube located at the bottom of the scanner unit during installation.
Chassis Radome(bottom) Mount base Washer Spring washer Included M10 Hexagonal bolt Fix four screws RA40C/41C Radome scanner Forward Forward 12φ × 4 214 (0.47 in.) 199 (7.83Double in.) nuts Spring washer Washer (8.43 in.) 65 170 (2.56 in.) Center 185 (6.69 in.) Rotation Radius (7.28 in.) Scanner baseR550 (3 ft antenna) Mount base R700 (4 ft antenna) 35 M12 Hexagonal14φ bolt× 4 (1.38in.) For air tube 15φ (0.59 in.) Fix four screws Cable inlet 100φ (3.97 in.
Remove the protective cap covering the rotary coupler on the top of the scanner. Match the antenna radiation direction to direction of the arrow markings on the rotation base and fix the antenna in position using the four M8 accessory bolts. Arrow Antenna radiation surface 3.6 Installing Display Unit After you have finished installing the scanner unit, install the display unit in the same way.
! WARNING Avoid a display from operating under direct sunlight. It becomes high temperature at inside of display and display may be broken.
3.7 Connecting Cables Lay cables firmly in place by following the instructions below. Note1: Do not bind the cable for the radar collectively with cables of other equipment (especially power supply cable). Note2: Leave clearance near the inlet of the display so you can remove the display unit easily. This facilitates installation and maintenance of the display unit. (Refer to Appendix.
$ Remove the shield cover located on the astern side. (There are four fixing screws.) % Remove the cable clamping plate and rubber ring, pass cable through the introduction opening, put the rubber ring from both ends of it, and clamp the cable to the scanner unit with screws via the fixing plate. Connect 7-pin connector to X11 and 9-pin connector to X12 of PCB. & Replace the aluminum cover. At this time, attach a cable shield onto a ditch with the aluminum cover.
Antenna Stern side Shield cover Cable shield Radome (bottom) Fixing plate Rubber ring Fix connector on PCB(X1) Interconnecting cable Inner shield X1 (Connect here) PCB Radome (bottom) Fig.
Antenna Stern side Shield cover Cable shield Fixing plate Rubber ring Radome (bottom) Fix connector on PCB(X11, X12) Interconnecting cable Inner shield PCB X11 (Connect here) X12 (Connect here) Radome (bottom) Fig.
3.7.2 Interconnecting cable (RA42C Open scanner) (See Fig.3-9) ! Ensure that the radar is off. Connect the cable to the receptacle labeled "SCANNER" on the rear panel of the display unit. " Use a T-wrench to remove the back covers of scanner unit. # Remove the two bolts securing the transceiver; pull out the transceiver after removing two connectors.(to Motor(X1), to Heading switch (X2)) $ Remove the four bolts securing the fixing plate at the cable entrance.
TR unit fixing bolts Remove connector Fixing bolt Clumper Fixing plate Inter-connection cable Fixing bolt Cable shield terminal 5-10 mm Washer Fixing plate Scanner unit Rubber Inter-connection cable Cable inlet Fig.
3.7.3 Grounding wire ! WARNING Connect grounding wire before connecting power supply cable. Leakage current is too high. Connect grounding wire from the grounding terminal on the rear panel of the display unit to the ship's hull as shown below. Grounding wire SCANNER POWER OPTION Grounding terminal Fig.3-10 Grounding display unit to earth Connect grounding wire from one of the bolts you have attached when installing the scanner unit to the ship's hull as shown in Fig.3-11.
3.7.4 Power supply cable Power is fed through a knife switch ( or circuit breaker) and protective fuses, as shown in below. WARNING: Do not apply over 41.6V to Radar or Radar may be broken. Generator Switchboard Main switch panel (Knife Switch with F ses) Storage Battery 12/24V Charger Radar Display Unit DC voltage reference points Fit the power supply cable (included with your radar) to the receptacle labeled "POWER" on the rear panel of the display unit. And connect to power supply as followings.
! TUNING " HEADING DIRECTION # DISTANCE Refer to Adjusting tuning circuit in 5.5.4.5.4 Refer to Adjusting angle in 5.5.4.5.4 Refer to Adjusting distance in 5.5.4.5.4 3.9 Connecting External Equipment to Display Unit The display unit has two channels of NMEA input. One is standard in power cable. The other is necessary to connect optional parts (Junction box with OPTION cable). OPTION connector is located at display’s rear panel for connecting external equipment such as a GPS, LORAN, or gyro compass.
(1) Installation Place of Radar The display unit, scanner unit and inter-unit connection cable should be located apart from the main unit, feeder, antenna coupler and antenna of radio equipment as far as possible. Especially, proper installation of the feeder, antenna coupler and antenna of radio equipment is very important to improve EMI trouble. (2) Laying Power Supply Cables Following connections A and B are recommended to reduce conduction noise generated from radar. Connection C should not be used.
CHAPTER 5. OPERATION Basic operation of radar The RA40C/41C/42C radar has several fixed-function keys on the front panel. These functions can be controlled by simply pressing the key. Also, special functions can be customized to soft-keys by user-setting. The followings explain the operation of each keys. 5.1 Powering On and Off (1) Powering On Press the "POWER" key. Buzzer sounds "pi" and starts the radar system. Screen brilliance is set to the level that of the radar system has been powered off.
5.3 Basic Operations xxx = keys to press 5.3.1 Powering On and Off POWER ON POWER Press "POWER"key to power on. 2 minutes timer and "RADAR OFF" are displayed. Keep pressing "POWER" key to power off. SCREEN BRILL Press the "BRIL" key. Control bar is indicated on the screen. .75 .25 HU brilliance Select brilliance. Up/Down key backlight 1:58 OFF Adjust brilliance with RADAR knob. + Select key backlight.
5.3.3 Adjusting brilliance of screen and key-backlight xxx = keys to press (1) Press the "BRILL" key. (Bar and figure indicating brightness, and figure indicating backlight appears on the screen.) (2) Select brilliance or key-backlight with the up-down cursor. (3) Adjust each item with the control knob. (4) When the adjustment is finished, press either the "BRILL" key or the "ENT" key to exit from the adjustment screen. (Pressing some other key after adjustment will lead to the function of the pressed key.
controls return to manual state. Use when find navigation way in much echo such as port area, narrow channel, small islands area. The control condition is similar to slightly down GAIN. AT2 Use at open sea to suppress the sea clutter. The control condition is similar to high GAIN. HBR Use at in a bay area, inlet, or a harbor. The control condition becomes manual STC by using the value established HARBOR of ADJUST menu. Note) Refer to "Setting STC circuit(STC)" in section 5.5.4.5.4(6).
(1) When the "STC" key is pressed, the STC display on the left side of the screen will be reversed as S 35 and the adjustable state will be entered. (2) When the control knob is turned, the figure will be shifted within a range of 0 and 99, and the STC can be manually adjusted. When the "AUTO" key is pressed, all (GAIN, STC and FTC) will enter an AUTO state. (3) After the adjustment is finished, press the "STC" key to exit from the adjustment state.
5.3.9 Man Over Board (MOB) Pressing the MOB key will send the own ship's position data to the external equipment through NMEA port with "WPL" format. There is no change on the screen. To check the MOB position data, select "MOB" from the "WINDOW" menu in the "SETUP". The position of MOB and current position will be displayed on the screen. If press the "MOB" key while watching the MOB screen, MOB data will be cleared and return to previous screen.
5.4 Functions of Soft Keys xxx •keys to press •Outline of soft keys Any function can be optionally allocated to the key upon which numbers 1-7 are indicated. A maximum of 4 groups of functions can be allocated to each soft key, and switching between those functions is conducted by the "NEXT" key. 5.4.
VRM1 → Control knob µθ> → VRM1 µθ> Other function key VRM1 is displayed and the function is shifted. VRM1 is displayed and the process is finished. VRM1 is turned off.(b) VRM1 (b) To turn off the VRM1 When the "VRM1" key is pressed twice, VRM1 disappears. (VRM1 OFF) Note: Refer to "5.5.1.2 Determining the distance (VRM1)". 5.4.4 Distance measurement (VRM2) The operation is the same as VRM1, refer to VRM1 operation.
(1) Press "FL VRM2" key. “SET START POINT” is displayed and a small cross mark appears. FL VRM2 → FL VRM2 is turned ON and (Select FL VRM2) the small cross mark appears. (2) Use the left-right and up-down cursor keys to place the small cross mark on one of the two echoes whose angle will be measured, and press the "ENT" key. → ------ ENT Up/Down & Left/Right Criterion of the reference point is set.
The function can be changed at the "KEY ASSIGNMENT" function in the "CUSTOM" menu of the "SETUP".
5.4.8 Erasing heading maker temporarily (HDG OFF) Press the “HDG OFF” key. The heading marker is not displayed as long as you hold it down. 5.4.9 Using parallel cursors (///CSR) Press the “///CSR” key. Parallel cursors will appear on the screen. As you move EBL, the parallel cursors also move. To cancel the "///CSR" function, press "///CSR" key once more. Note: Refer to "5.5.1.8 Using parallel cursors (///CSR)". 5.4.10 Establishment of the indication of the RANGE RINGS (RINGS) Press the “RINGS” key.
A function that sets a guard zone of any distance and any angle range, creating alarm tone when either echoes above a certain level exist (IN MODE) or no echoes exist(OUT MODE). When GZ is operated with soft keys, guard zone settings and ON/OFF settings can be conducted, but the mode (IN or OUT) is to be set in the menu. Note: Refer to "5.5.2.2 Guard Zone (GZ)". (1) When the "GZ" key is pressed, the present mode setting will be displayed on the left side of the screen as GZ IN.
OFF-C → Up/Down & Left/Right → ENT ---------------- Conduct Off Center to exit the adjustment state. Note: VRM2 and EBL2 do not follow the OFF-C function while floating. The function operates on PPI screen only. (b) To cancel the setting OFF-C ---------------------------------------------------The "OFF-C" display at the upper right disappears and function returns to the ordinary state from the Off Center state. 5.4.
99, and the receiver tuning can be manually adjusted. (3) After the adjustment is finished, press the "ENT" key to exit from the adjustment state. If some other function key is pressed, shift to that function will take place. TUNE → Control knob → --------------- TUNE •or ENT The adjustment state is ended. (tuning adjustment) µ-> --------------- Other function key • Shift to other functions Note: Use the "MENU" to return auto-tuning state. Note: Refer to "5.5.3.
the "ENT" key and the setting is completed. The area around the cross cursor is displayed in 2x magnification, with blinking "ZOOM" displayed at the screen upper right, indicating that a ZOOM display is being conducted. To cancel the ZOOM function, press the "ZOOM" key again or change the range scale. Note: Refer to "5.5.3.7 Enlarging selected areas (ZOOM)".
µθ> or (Select left screen) → Left screen activated If VRM1 is controlled on the screen that is oposit from current VRM1 displayed screen, VRM1 is moved and displayed to activated screen. The EBL1, EBL2, and VRM2 is the same manner. 5.4.22 Changing the color of screen (PICTURE) The LCD display is affected by weather and day / night environment conditions. In some cases, you may find the LCD display is easier to view when the entire color of screen is changed.
Press the "PPI/PPI" key, the screen will change to PPI/PPI screen. Use to change the screen from other modes to PPI/PPI. .75 .25 HU S Note: (1) The radar picture is refreshed with two scanning interval for each screen. Right screen picture is holded during refreshing left screen, left screen holded during refreshing right screen.
Press the "ALL PPI2" key, the screen will change to ALL PPI/PPI screen. Use to change the screen from other modes to ALL PPI/PPI. .75 @ .25 HU S .25 .125 Note: { (1) The range, rings interval, display mode are displayed on the upper left of each screen. (2) Return to PPI/PPI screen mode pressing a key except MENU, range UP or DOWN, or POWER key. ALL PPI/PPI screen (3) The radar picture is refreshed with two scanning interval for each screen.
5.5.2 Nav (Navigation) Menu xxx = keys to press Radar functions for navigation aid are in this menu. •Common operations for the NAV menu (Up to the point when "NAV" menu is selected from the main menu) Press the "MENU" key and select "NAV" from the displayed 4 main menus using the left-right cursor. (The contents of the selected MENU will appear on a pull-down display in accordance with the movement of the left-right cursor.
5.5.2.2 Guard Zone (GZ) A function that sets a guard zone of any distance and any angle range, creating alarm tone when either echoes above a certain level exist (IN MODE) or no echoes exist(OUT MODE). Setting guard zone (1) Select GZ from the pull-down display items using the up-down cursor keys, and press the “ENT” key. ON/OFF sign is displayed beside the GZ item. Up/Down (2) --> ENT ------------------------------- ON/OFF sign is displayed.
Stop the alarm tone When the alarm sounds, press any key to stop. But the guard zone function is still working, the alarm may sounds again. To "OFF" the guard zone function, select "OFF" from GZ menu. Note1: To switch the IN or OUT mode, refer to “Guard Zone Mode” in section 5.5.4.5.3 “Changing the content of settings 2 (PRESET2)” Note2: To set the guard zone level, refer to “Guard Zone LeveL” in section 5.5.4.5.3 “Changing the content of settings 2 (PRESET2)” 5.5.2.
state) and the LCD backlight turned off. This action is repeatedly executed. Usage example, set a guard zone and have the warning signal automatically confirmed every prefixed period. (1) Use the up-down cursor keys to select SLEEP from among the pull-down display items, and press the "ENT" key. (2) When the OFF/5min/10min/15min display has appeared beside the SLEEP item, select a time to be set with the up-down cursor keys. (3) Press the "ENT" key and the setting is completed.
b) If a key is pressed while the 2-minute timer is in use, or during transmission , the SLEEP function is canceled.
5.5.3 Echo Menu xxx •••keys to press Adjustment options to be conducted on the echoes displayed on the screen •Common operations for the ECHO menu (Up to the point when "ECHO" menu is selected from the main menu) Press the "MENU" key and select "ECHO" from the displayed 4 main menus using the leftright cursor. (The contents of the selected MENU will appear on a pull-down display in accordance with the movement of the left-right cursor.
Up/Down --> ENT --> (Select GAIN) Up/Down |->(Select MANU) --------------------> Control knob --> ENT Set to MANU mode | (GAIN adjustment) |->(Select AUTO) ----------------------------------- --> ENT Set to AUTO mode 5.5.3.2 Removing sea clutter (STC) Refer to the section, “Sensibility adjustment (GAIN)”.
Indicated setting value on manual mode, 5.5.3.5 Echo expansion (ST) Expanding the echo to the direction of the distance. Two types of echo expansion exist, select ST1 or ST2 from the menu. (1) Use the up-down cursor keys to select ST from among the pull-down display items, and press the "ENT" key. (2) Select ST1 or ST2 from the display beside the ST item using the up-down cursor keys, and press the "ENT" key. Up/Down --> ENT --> Up/Down -->••select ST1• ............... --> ENT |->••select ST2• .
Note: When PPI+PPI or ALL PPI+PPI screen mode is used, TRACK function can be used only on CONT mode. locus of target .75 .25 HU real echo + moving direction TK 15SEC disappear after selecting time the length of the track up/down --> -> ENT ENT --> up/down ........... ->••select OFF• TRACK OFF |---->••select 15SEC• ......................... -> ENT set 15sec. track |---->••select 30SEC• ......................... -> ENT set 30sec. track |---->•select 1MIN• ...........................
Up/Down --> ENT --> Up/Down (Select ON) --> ENT --> Up/Down & Left/Right ZOOM Setting (Select ZOOM) | --> ENT (Move cross cursor) (Select OFF) --> ENT ---------------- |--> ZOOM canceled Note Note Note Note Note 1) 2) 3) 4) 5) VRM2 and EBL2 do not follow the ZOOM function during a floating state. Normal screen returns when you change the range scale. ZOOM function is usable only in PPI screen. ZOOM function is unusable in OFF-C. Center of ZOOM can be set any desired position within the set range.
5.5.4.5.2 Changing the content of settings 1(PRESET1) (1) When PRESET1 is selected from CUSTOM items and the "ENT" key is pressed, the PRESET1 screen (See chart below) appears. (2) Select items with up-down keys and contents with left-right keys. The selected items will be enclosed by square frames and the contents will appear in reversed display. (a) Repeat this operation when multiple settings are to be made.
•• VRM Unit g) Water temperature h) Depth Unit i) EBL Mode j) WayPoint Mode k) Heading Source l) Heading Type m) Cross n) Transmitting pulse width Setting VRM ••NM: Nautical mile Heading Marker ••KM: Kilometer .75 ••SM: Statute mile .
73
5.5.4.5.3 Changing the content of settings 2 (PRESET2) Refer to the section, “Changing the content of setting 1(PRESET1)”.
j) Ship's Speed Own ship's speed setting NMEA: Data input from NMEA port MANU: Set ship's speed with manual Set the Speed with control knob. Select the language for MENU and SOFT KEY( Note2: ) Scanning speed setting STD: Standard HIGH: High speed ( The setting can be changed only on stand-by state. ) k) Indication Language l) Scan Speed Note1: HOLD function POWER • POWER key to press HOLD is function which you want to hold the currently displayed radar screen conditions while standby state.
5.5.4.5 Changing the content of the setting (CUSTOM) Note) Items in CUSTOM are for conducting settings and adjustments at the time of installation, which need not be conducted normally. -Common operations for CUSTOM Use the up-down cursor keys to select CUSTOM after ”the common operations for the SETUP” menu, and press either the "ENT" key.
5.5.4.5.1 Changing the settings of soft keys (KEY ASSIGN) Conducting alterations and new settings for the functions of keys with number displays of 1-7. (1) Screen display for the setting When KEY ASSIGN has been selected with the up-down cursor keys from among the CUSTOM items and the "ENT" key is pressed, the setting screen is displayed.
than 1 key) are possible.) When settings are to be conducted for more than 1 key, repeat the operations (3)-1 to (3)-2. (Example 3) (4) Completing the setting After the setting has been finished, press the ENT key to exit from KEY ASSIGNMENT. Example of an operation (The process up to the selection of KEY ASSIGNMENT from the SETUP menu is omitted. Only the process after the above chart will be described.) Example 1) Altering OFF-C allocated to key 6 in setting 2 to HDG OFF.
5.5.4.5 Changing the content of the setting (CUSTOM) Note) Items in CUSTOM are for conducting settings and adjustments at the time of installation, which need not be conducted normally. -Common operations for CUSTOM Use the up-down cursor keys to select CUSTOM after ”the common operations for the SETUP” menu, and press either the "ENT" key.
5.5.4.5.1 Changing the settings of soft keys (KEY ASSIGN) Conducting alterations and new settings for the functions of keys with number displays of 1-7. (1) Screen display for the setting When KEY ASSIGN has been selected with the up-down cursor keys from among the CUSTOM items and the "ENT" key is pressed, the setting screen is displayed.
than 1 key) are possible.) When settings are to be conducted for more than 1 key, repeat the operations (3)-1 to (3)-2. (Example 3) (4) Completing the setting After the setting has been finished, press the ENT key to exit from KEY ASSIGNMENT. Example of an operation (The process up to the selection of KEY ASSIGNMENT from the SETUP menu is omitted. Only the process after the above chart will be described.) Example 1) Altering OFF-C allocated to key 6 in setting 2 to HDG OFF.
5.5.4 SETUP Menu To be used for various settings and switching of the screen •Common operations for the SETUP menu (Up to the point when "SETUP" menu is selected from the main menu) Press the "MENU" key and select "SETUP" from the displayed 4 main menus using the leftright cursor. (The contents of the selected MENU will appear on a pull-down display in accordance with the movement of the left-right cursor.
Up/Down → •select WINDOW• → → ENT Up/Down → (Select PPI• → ENT → ENT •a• (Select PPI+SEMI3D• •b• → (Select PPI+PPI• → ENT •c• → (Select PPI+NAV• → ENT •d• → (Select ALL PPI• → ENT •e• → (Select ALL PPI+PPI• → ENT •f• → (Select MOB• → ENT •g• -Limitation of screen operation SCREEN ••• ITEM PPI/SEMI3D PPI•PPI ALL PPI ALL PPI PPI MOB PPI/NAV RANGE • • • • • × VRM1•EBL1 • • • × × × VRM2•EBL2 • • • × × × FL VRM2•EBL2 • × ×• × × × RINGS ON/OFF • •
(a) PPI Screen ‚V D ‚T ‚Q D ‚T ‚g ‚t All functions can be used on this screen.
(b) PPI/SEMI3D Screen It becomes simultaneous control at the time as two screen. Note: All controls, such as EBLs, VRMs effects both screen. The ZOOM, OFF-C, FL EBL2, and FL VRM2 could not be used on this mode. The "SEMI3D" screen displays the center as ship's heading always. ‚V D ‚T D ‚Q ‚ T‚ g ‚ t‚ r { 280 320 000 040 080 PPI/SEM I3D Screen (c) PPI/PPI Screen The radar picture is refreshed two antenna scanning for each PPI screen. Unrefreshed screen picture is holded during the time.
b) Adjusting GAIN of LEFT screen. 1) When the RIGHT range indicator displayed in reverse, change to LEFT screen with "SEL WIN" function. 2) Press the "GAIN" key, "G50" will displayed in reverse and ready for adjusting GAIN. 3) Adjust GAIN with the control knob. Adjust STC and FTC in a same manner as GAIN. Note: During adjustment of GAIN, STC, or FTC, radar picture refreshing is fixed to the adjusting screen. Approximately 5 seconds errapsed after adjustment, radar picture refreshing is return to normal.
(f) ALL PPI/PPI Screen ‚V D ‚T D ‚Q ‚T ‚ g ‚t ‚r Note1: The RANGE, RINGS interval, and Display mode are displayed on the top of the screen. Note2: When press the key except "MENU", "RANGE UP/DOWN", "BRILL", and "POWER", return to PPI/PPI screen. Note3: The radar picture is refreshed with two scanning interval for each screen. Right screen picture is holded during refreshing left screen, left screen holded during refreshing right screen.
5.5.4.3 Changing the color of screen (PICTURE) Changing the color of screen depending on weather and day / night environment conditions will be effective for easy viewing . When "PICTURE" is selected with the up-down cursor keys from among the pull- down display items, select "DAY" and press "ENT" key to set to day display. Night display appears if "NIGHT" is selected → Up/Down ENT → → (select DAY• Up/Down ENT → day display → ENT → night display → (select NIGHT• → •select PICTURE• . 75 75 .
SYSTEM CHECK MENU MEMORY CHECK a) ROM --------------------------------------- > ROM b) RAM---------------------------------------- > RAM c) Backup memory ----------------------- > BACKUP ENT OK OK OK Indicates the cursor status.
5.
5.5.1 Mark Menu xxx •keys to press Setting for markers and cursors •Common operations for the MARK menu (Up to the point when "MARK" menu is selected from the main menu) Press the "MENU" key and select "MARK" from the displayed 4 main menus using the leftright cursor. (The contents of the selected MENU will appear on a pull-down display in accordance with the movement of the left-right cursor.
(1) (2) (3) (4) 5.5.1.2 Determining the distance (VRM1) Select VRM1 from the pull-down display items using the up-down cursor key, and press either the "ENT" key. When the ON/OFF sign is displayed beside the VRM1 item, select ON with the up-down cursor keys and press the "ENT" key. When the "ENT" key is pressed, the variable range marker1 (VRM1) and the distance in a reverse display appears at the lower left of the screen (See Note), and the display is set for VRM1.
appears. (Once this is set, the "ON" state continues unless changes are made.) Up/Down → ENT → Up/Down → ENT (Select FL VRM2) --------------------------------FL VRM2 is turned ON and (Select ON) the small cross mark appears. (b) Setting a reference point for measurement of the distance Use the left-right and up-down cursor keys to place the small cross mark on one of the two echoes whose distance will be measured, and press the "ENT" key.
(c) Measuring Perform the operations in the above mentioned "Common operation for the MARK menu" and "measuring the distance(EBL2)", and place the EBL2 on another echo. EBL2 is displayed on the screen based on the placed fixed cross cursor. " 2 xx. xxφ" which is displayed at the lower right will be the angle between the two points. Note: The displayed EBL angle is relative to heading or true to north, depends on the setting of "EBL BRG" in the "SETUP" menu.
Up/Down → ENT (Select ///CSR) → Up/Down (Select ON) → ENT -----------------------Parallel cursor appears µ> Up/Down (Select OFF) → ENT -----------------Parallel cursor non-appears Note: Interval of ///CSR same as fixed range marker. ///CSR moves with EBL1. 5.5.1.9 Establishment of the indication of the RANGE RINGS (RINGS) (1) Use the up-down cursor key to select RINGS from among the pull-down and display items, and press the “ENT” key.
items, and press the "ENT" key. (2) When ON is selected with the up-down cursor key from the ON/OFF display beside the VAR RNG item, and the "ENT" key is pressed, the VAR RNG function becomes valid and VAR will be displayed at the upper left of the screen (beside MODE).
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CHAPTER 4. FUNCTIONS AND NAMES Function and name of each part The RA40C/41C/42C radar consists of a display unit to display video images on a screen and a scanner unit configured with an antenna to radiate radio waves and other components. The display unit has on its front panel eighteen(18) push-switch keys and one cursor key that lets you move a cursor in any desired direction. A combination of these keys allows you to utilize all functions of your radar, providing a comfortable, easy way to operate. 4.
4.2 Rear panel SCANNER POWER OPTION !Power supply connector "Grounding terminal $Scanner connector #Option connector ! Power supply connector Use this connector to plug in the power supply cable. Standard NMEA interface terminal is included in this connector. Refer to Section 3.7 “ Connecting Cables “ and Section 3.9 “Connecting External Equipment to Display Unit “. " Grounding terminal Use this terminal to connect grounding wire. Refer to Section 3.7 (3) “Grounding wire”.
4.4 Radar screen (Dual screen) ex) PPI/PPI screen Range(Left screen) Range ring interval (Left screen) 6 1.0_ HU Range(Right screen) Range ring interval (Right screen) .75 L A .25 HOLD Tune meter Picture hold EBL1 Display mode VRM1 Pulse width + EBL2 VRM2 Indicate soft key Cross cursor FL EBL2 FL VRM2 Cruising speed Guard zone(Right screen) Way point NEXT Heading angle Course error EBL1 VRM1 Guard zone(Left screen) AT1 G 59 / AT 0.23 SP D 12. 8KT G Z R IN XTE >>> 1 129.8° 1 12.
4.6 Radar screen (All PPI /PPI screen) Range(Left screen) Range ring interval (Left screen) 6 1. 0_ HU L GZ IN Range(Right screen) Range ring interval (Right screen) .75 .2 5 GZ IN HO LD Display mode Picture hold Gurad zone(Right screen) Guard zone(Left screen) Pulse width + Cross cursor 4.7 Navigation screen N AV D I S P L A Y Way point WP 134.4° 12.5 Heading angle NM Cruising speed HDG 129.0° Current position S PD 12.8KT L AT 35°08.42N Sea water temperature LON 139.02.
Deviation from course Indication mark >< 0.00 -> or < 0.02 ->> or << 0.04 ->>> or <<< 0.08 ->>>> or <<<< 0.16 -Tab.
CHAPTER 6. MAINTENANCE AND INSPECTION Most of maintenance of this radar should be referred to qualified personnel. If radar has any problem, contact your dealer and tell us that problem. ! WARNING There are high voltage circuits inside of this radar. Do not attempt to open the rear cover of display unit or disassemble internal parts. When you open the radome, power must be off. Even power switch is OFF, this radar is still supplied power inside. The following table shows the maintenance by user.
(3) Fuse The fuse is built in the power supply cable. If the fuse appears to be blown, check the fuse. If blown, replace it following the procedure shown in Fig.6-2. Power supply cable To display unit Push Wire(White) Turn counterclockwise and pull Spring Fuse Replace new fuse Push and turn clockwise Fig. 6-2 Method for replacing fuse Note: Before maintenance of scanner, you can hang a radome(upper) using cord through hole as follows.
CHAPTER 6. MAINTENANCE AND INSPECTION Most of maintenance of this radar should be referred to qualified personnel. If radar has any problem, contact your dealer and tell us that problem. ! WARNING There are high voltage circuits inside of this radar. Do not attempt to open the rear cover of display unit or disassemble internal parts. When you open the radome, power must be off. Even power switch is OFF, this radar is still supplied power inside. The following table shows the maintenance by user.
(3) Fuse The fuse is built in the power supply cable. If the fuse appears to be blown, check the fuse. If blown, replace it following the procedure shown in Fig.6-2. Power supply cable To display unit Push Wire(White) Turn counterclockwise and pull Spring Fuse Replace new fuse Push and turn clockwise Fig. 6-2 Method for replacing fuse Note: Before maintenance of scanner, you can hang a radome(upper) using cord through hole as follows.
CHAPTER 7. TROUBLESHOOTING This chapter explains how to identify trouble locations when the radar is found faulty and how to request repair. It happens any disorder, keep pressing POWER key for 3 sec. to power off. Then wait over 10 sec., when you power on again. If you find the radar is faulty, check it the following procedure described below. If you find as a result of inspection that the fault cannot be repaired on board, contact your distributor for repair.
When you have finished self-check, inspect each part of the radar according to Tab.7-1. Tab. 7-1 Troubleshooting Symptom Cause (1) Radar cannot be powered Power cable is disconnected. on. Power supply voltage is off specified value Fuse in power cable is blown. (2) Nothing is displayed al- Brightness or contrast are imthough radar is powered on. properly adjustment. LCD is faulty. (3) Screen is dark. Brightness is improperly adjusted. Backlight is faulty.
CHAPTER 8. PRODUCT SPECIFICATIONS 8.1 General Type: RA40C, RA41C and RA42C Power supply voltage and power consumption ••••Power supply voltage: 24Vdc (nominal) (10.2 to 41.6 Vdc) 55 W or less (RA40C/41C) 70 W or less (RA42C) ••••Power consumption: Distance range: 0.125 to 24 NM, 9 ranges (RA40C) 0.125 to 36 NM, 10 ranges (RA41C) 0.
rpm) Wind resistance: 100 knots (max.) Waterproof standard: (D/U): (S/U): Interconnecting cable: IPX-5 IPX-6 30 m in max. (RA40C) 100 m in max.
8.2 Scanner Unit Type: RB714A (RA40C) RB715A (RA41C) RB716A (RA42C) Antenna type: Parabolic (RA40C) Slotted-array (RA41C/42C) Antenna characteristics Beam width (horizontal): 6.0° ± 1.0° 3.9° 2.5° ± 0.3° 1.8° ± 0.2° Beam width (vertical): 25° (typ.) 22° (typ.) (RA40C) (RA41C) (RA42C with 3ft antenna) (RA42C with 4ft antenna) (RA40C/41C) (RA42C with 3/4ft antenna) Pulse width and peak power output:• RA40C Pulse width (µsec) 0.12 ± 0.02 0.3 ± 0.05 0.8 ± 0.1 Peak Power (kW) 1.5 (±50% ) 2.
Cursor Control: Analog cursor key and rotary encoder VRM: 2 lines (One line can be offset.) Unit of distance can be selected from NM, KM, and SM. EBL: 2 lines (One line can be offset.) Display modes: HU, HS, NU, CU, and TM Off-center: Can be 100% off-centered over the full range. Guard zone: Can be set at any desired distance and angle in any desired width. IN and OUT modes are available. Stretch: 2 modes Echo track: 15, 30 sec, 1, 3, 6 min. and continuous.
Seawater temperature MTW Others (using optional cable): External buzzer control output, Auxiliary indicator connecting signal output and input, Bow direction signal input(SIN/COS signals), and compass interface (10/12 bits serial) 8.5 Standard set Display unit Scanner unit Display cover Fuse Interconnecting cable Power supply cable M10 hexagonal bolt M12 hexagonal bolt 1 1 1 1 set 1 (10m) 1 (2m) 4 sets (for RA40C/41C) 4 sets (for RA42C) 8.
0 to 5V positive pulse, rising edge 8 26 9 GND GYRCK+ GYRCK- 27 10 GYRDT+ GYRDT- 28 11 GND MARK_I 29 12 30 13 +12V SIN COS REF 31 14 32 -GND NMEA_OUT Gyro Interface clock(+) input Gyro Interface clock(-) input apply 5V pulse between (+) and (-), isolated Gyro Interface data(+) input Gyro Interface data(-) input apply 5V pulse between (+) and (-), isolated External Marker signal input, ex) Radar Buoy negative video, 0 to -1V Zi = 50ohm External interface power, 100mA max.