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MDC-2000 Series

Chapter 7 Principle of radar system

0093120005-02

7-3

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Virtual image

The image of a large physical object in a close proximity may appear in two different orientations. One
is a real image and the other is a false image caused by wave reflected on the chimney stack or the
mast, etc.
On the display, one image appears with a right distance and bearing, and another one appears in the
direction of chimney stack, mast, etc. These images may also be generated by being reflected multiple
times from the bridges and quays too.

Passage of direct
reflection

Passage of
secondary
reflection

Mast, etc

Direction of virtual image

3

1

HU

Real image

Virtual image

Figure 7-5 False image by virtual image

●

Duplicate target images

When there is a big reflective surface nearby and perpendicular at a close distance (i.e. when your ship
is passed by a big ship, etc.) radio wave bounces repeatedly between your ship and the other ship.
Therefore, 2 to 4 images may appear at equal range in the direction of this target. The false image
generated by this multi-path reflection is referred as “double targets”. In this case, the closest target is
the real one.
Even if the double targets appear, if the distance and bearing between own ship and the reflective
target changes, the duplicate targets will disappear. Therefore, this false image can be easily
distinguished.

3

1

HU

Double image

Real image

Figure 7-6 False image caused by double image

Own ship

Largevessel

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Содержание MDC-2000 series

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Страница 3: ...005 02 2013 12 04 Chapter 2 Chapter 6 8 9 10 Document No Revised Version Norm When part of the document needs to be revised the document has advanced revision number The document No is indicated at the lower right side on the cover and at the left or right side of the footer region of each page 2010 2013 Koden Electronics Co Ltd All rights reserved No part of this publication may be reproduced tra...

Страница 4: ...me parts may be omitted Our company is not liable for damage and trouble arising from misunderstanding of the content described in this manual Our company is not liable for earthquake lightning fire for which our company is not responsible action by third party other accident customer s unintended error abuse and damage caused by the use under other abnormal condition Our company is not liable for...

Страница 5: ...death or serious injury caused by electric shock when not dealing with it correctly Mark for caution This symbol denotes that there is a risk of slight injury or damage of device when not dealing with it correctly Mark for prohibition This symbol denotes prohibition of the specified conduct Description of the prohibition is displayed near the mark IMPORTANT Mark for important matters This mark den...

Страница 6: ...s inadvertently powered on during work you will be electrified To prevent such accident from occurring ensure to switch off the power in the boat and the power of equipment Furthermore it is safer to hang the caution tag with description of Under Work near the power switch of equipment Caution on dust Inhaling dust may cause A respiratory disease When cleaning the inside of equipment be careful no...

Страница 7: ... a harmful effect on human bodies but some kind of medical devices such as heart pacemakers are sensitive even under the low energy electromagnetic wave Any personnel with such a device should keep away from the electromagnetic wave generating position at all times Specified power density and distance from the radar in accordance with the provision as specified in IEC 60945 Model Xmit power Antenn...

Страница 8: ...ck In case of trouble contact our dealer or our company In case of smoke or fire switch off the power in the boat and the power of equipment It may cause fire electric shock or damage Caution on the remaining high voltage A high voltage may remain in the capacitor for several minutes after you have powered off Before inspecting inside wait at least 5 minutes after powering off or discharging the r...

Страница 9: ...8 How to use F1 and F2 keys 1 8 1 10 Delete of Heading Line 1 9 Delete of Heading Line 1 9 1 11 Use of Crosshair Cursor 1 9 1 12 Measuring the distance and bearing between two points 1 10 Measuring the distance and bearing between two points 1 10 1 13 Camera Display 1 10 How to connect a CCD camera 1 10 How to display the video of a CCD camera 1 10 Chapter 2 How to use the menu 2 1 2 1 How to oper...

Страница 10: ... Display of System Menu 3 1 Display the System Menu 3 1 Return to the normal menu 3 1 3 2 Setting of Assist Items 3 1 Range Rings 3 1 Range Unit 3 1 Speed Unit 3 1 Temperature Unit 3 1 Depth Unit 3 1 Position Display 3 1 WPT Display 3 2 Rotation Speed 3 2 ALL PPI 3 2 Guide 3 2 Buzzer 3 2 Motor Speed 3 2 N UP S UP 3 2 Crosshair Cursor Display 3 2 Radar Setting Display 3 2 Menu Operation 3 2 3 3 Set...

Страница 11: ...Antenna 5 4 Installation of Antenna 5 5 Cable Connection 5 7 5 2 Mutual Connection Diagram 5 10 5 3 Display Unit Installation 5 11 Desktop Installation 5 11 Flush mount Installation 5 12 5 4 Adjustment after Installation 5 13 5 5 Wiring 5 14 Cable connection to the Display unit 5 14 Pin Assignment of Rear Connector 5 15 Connection of DC power cable 5 16 Grounding 5 16 Connection of External Buzzer...

Страница 12: ...s can be tracked The current motion of other ships can be grasped in a vector and numeral so that it helps your ship to navigate safely Optional By connecting the AIS receiver the gathered information such as name heading and speed of a ship can be displayed Optional interface With the adoption of a specific filter AR coat an image can be seen clearly refusing sunshine The countermeasures against ...

Страница 13: ...ing bracket and hard cover Standard configuration Option Prepared by a user Legend Antenna Scanner unit RB715A RB716A RB717A RB718A External Monitor External Buzzer AIS Receiver Slave Display MRD XXX J3 J5 J4 Navigation equipment J6 Power 10 8 to 31 2VDC J7 KGC 1 or Navigation equipment CCD camera Be sure to connect the KGC 1 to J5 ...

Страница 14: ...0 g 1 3 DC power cable CW 259 2M 3 pin water resistant connector and one end plain 2 m 1 4 Fuse F 1065 15A Cylinder ø 6 4x30 Normal fusion type for main power 1 5 Fuse MF51NN250V5A Cylinder ø 5 2x20 Normal fusion type for motor power 1 6 Fuse F 7142 0 3A Cylinder ø5 2x20 Normal fusion type for high voltage power 1 7 Connector LTWBD 06FFA L180 6 pin water resistant connector 1 8 Operation Manual MD...

Страница 15: ...55A 10M 10kg 2ft 2 RB716A with RW701A 03 04 4kW Open Interconnecting cable 10m 242J159098A 10M 21kg 3ft 22kg 4ft 3 RB717A with RW701A 04 06 6kW Open Interconnecting cable 15m 242J159098B 15M 23kg 4ft 25kg 6ft 4 RB718A with RW701A 04 06 12kW Open Interconnecting cable 15m 242J159098B 15M 23kg 4ft 25kg 6ft Cables of 15m 20m and 30m are available Optional Cables of 10m 20m and 30m are available Optio...

Страница 16: ...or external monitor external buzzer CW 576 0 5M 10 pin water resistant connector and D SUB connector female Alarm out cable 0 5m 6 Cable for slave display CW 561 10M 12 pin water resistant connectors at both ends 10m 7 Power rectifier PS 010 With 2 pieces of 5A fuse 8 AC power cable VV 2D8 3M Both ends plain 3m 9 Cable for navigation cable CW 373 5M 6 pin water resistant connectors at both ends 5m...

Страница 17: ...a surface reflection suppression effect The suppression fect becomes strong when rotating clockwise the knob and becomes weak when rotating counterclockwise the knob This function reduces the gain at a near distance If you turn clockwise the knob too much desired objects may disappear Adjust properly to meet the weather condition Example of STC adjustment The suppression is too weak Optimum suppre...

Страница 18: ...Objects near own ship can be easily confirmed 1 6 Switch over of range 4 Adjust the gain by rotating the GAIN knob Example of gain adjustment Too high gain Noise is also displayed Desired targets are displayed Some targets are not displayed Optimum gain Too low gain 1 7 Gain adjustment The gain becomes high when rotating clockwise the knob and becomes low when rotating counterclockwise the knob Wh...

Страница 19: ...How to read the radar screen FTC EBL VRM I N Off center Pulse width Range Fixed marker interval Display mode Heading Ship speed F2 key content F1 key content Enhance Alarm Trail Interference Rejection Crosshair cursor Cursor position OWN ship s position PRC Process ...

Страница 20: ...Basic Operation 0093120005 02 1 4 1 2 How to use the keys Various adjustment items can be set by operating each key The menu is displayed by pressing the MENU key and closes when pressing the MENU key again 3 4 5 6 7 8 9 1 2 10 ...

Страница 21: ...e setup 7 GAIN Rotate Changes the gain Push Changes the gain adjustment of sub screen lower screen of PPI PPI and the range In the PPI or PPI NAV display recall directly the preset menu item 8 STC Rotate Changes the STC Push Display the video of a CCD camera When the video of a CCD camera is displayed if you press it the size of video changes When not connecting CCD camera recall directly the pres...

Страница 22: ...nce of menu can be adjusted to make it easier to see Setup 1 to 10 Initial value 10 1 Press the key briefly 2 Press the and keys 1 is the darkest 10 is the brightest LCD BRILL 10 3 Press the MENU key or ENT key to close the menu Brightness Adjustment of Panel The panel brightness can be adjusted Setup 1 to 10 Initial value 10 1 Press the key briefly When LCD BRILL appears press the key again 2 Sel...

Страница 23: ...n image easily Gain Adjustment 1 When rotating clockwise the GAIN knob the gain increases When rotating counterclockwise the GAIN knob the gain decreases When the short distance or targets are crowded if the gain is reduced the image can be easily seen When the long distance if the gain is increased it is effective but due to increase of noise the image becomes hard to be seen In the PPI PPI menu ...

Страница 24: ... knob Own ship Land In the PPI PPI menu when rotating the STC knob the STC functions effective in both displays 1 9 Use of F1 and F2 keys The following functions can be assigned to the F1 and F2 keys FTC MODE DISPLAY SELECT OFF CENTER ENHANCE TRAIL TIME EBL VRM COLOR PI ALARM MODE ACQ DELETE POB TARGET OTHER SHIP PULSE PROCESS Refer to the F1 F2 keys set in 3 5 Preset The assigned function is disp...

Страница 25: ...ed as a POB position In the state that the POB position is stored if the or key is pressed after pressing the F1 F2 key the setup of renewal release of the POB position can be changed The renewal or release of the POB position can be performed with the ENT key Target The position of crosshair cursor at the moment when pressing the F1 F2 key is outputted to the external terminal with the TLL senten...

Страница 26: ...Prepared by a customer How to connect a CCD camera 1 Connect CW 405 0 3M cable optional cable to the J6 in the rear connectors 2 Connect a commercially available CCD camera to the cable How to display the video of a CCD camera 1 Press the STC knob The video of a CCD camera appears A split screen display and a full screen display are toggled by pressing the STC knob 2 When pressing the or key in th...

Страница 27: ...AY TRAILS ALARM NEXT TRAIL MODE TRAIL TIME TRAIL SHAPE TRAIL LEVEL STANDARD REL 3MIN 7 AIS ATA 4 Press the key According to the selected item the setup menu appears TRAIL MODE REL TRUE FIELD OF ANGLE 5 0 PI NUMBER 7 1 7 5 Change contents of setup with the and keys 6 Press the key Then the cursor returns to the setup item column 7 To select another menu name press the key The cursor returns to the ...

Страница 28: ...P TM C UP RM C UP TM WPT UP RM Initial value H UP RM 1 Press the MENU key 2 Select ECHO MODE 3 Change the setting of MODE with the and keys 4 Press the MENU key to close the menu Four bearing displays of H UP N UP C UP and WPT UP are provided NUP and SUP can be swapped Refer to N UP S UP in 3 2 Setting of Assist Items Two types of display method RM and TM are provided for the motion display Enteri...

Страница 29: ... WPT UP Waypoint Up The WPT is the display mode to always orient the WPT to the top of the screen When this mode is used in combination with the course up function of the plotter the understandable image is available 045 0 0 0 NORTH Land Target 1 Target 2 Own ship HDG WPT BRG Relative Motion RM and True Motion TM The relative RM motion mode indicates motions of surrounding targets while fixing you...

Страница 30: ...tuation based on your own ship s position Moving Fixed Own ship Moving Land True motion TM Your ship moves according to its speed and tidal current on the screen Stationary targets are fixed on the screen It is useful when monitoring your ship s position with respect to the fixed targets such as land Fixed Own ship Own ship Land Moving 34 66 OWN ship s position relocatable area in TM Center of dis...

Страница 31: ...e entire display Own ship Land PPI PPI Display Two radar images are displayed in the upper main screen and lower sub screen halves of the screen The screen is switched every two rotation of the antenna The images of two different ranges can be displayed Own ship Main screen Sub screen Land Own ship Land PPI PPI Display The range of the upper display main screen can be changed with the RANGE key Th...

Страница 32: ...on where the own ship point is stored OFF CENTER OFF ON 4 Press the key 5 Move the crosshair cursor to the point you desire to move your ship with the keys 6 Press the ENT key Own ship s position moves to the position of the crosshair cursor 7 Press the MENU key to close the menu The movable range is limited See the movable range shown below 34 66 Own ship relocatable area Own ship When PPI PPI or...

Страница 33: ...RAIL TIME with the and keys 6 Press the MENU to close the menu For the display method the relative display R and the true display T are provided When changing the range display mode or display select the trail disappears Relative Display R The relative speed of a target with respect of own ship is displayed as a trail This is used to watch a target which is approaching to own ship The trail of fix...

Страница 34: ...trongly reflected targets can be displayed By decreasing the numeral trails of weakly reflected targets can be displayed 2 10 EBL This mode is used when measuring the bearing from own ship to a target Setup OFF ON Initial value OFF 1 Press the MENU key 2 Select DISPLAY EBL 3 Change the setting of EBL with the and keys OFF ON EBL 4 After selecting ON press the key Then the EBL can be operated The E...

Страница 35: ... 3 Change the setting of Cursor Shape with the and keys 4 Press the MENU key to close the menu 2 14 PI Parallel Index Line The straight lines parallel with own ship are displayed Setup OFF ONE SIDE BOTH SIDES Initial value OFF 1 Press the MENU key 2 Select DISPLAY PI 3 Change the setting of PI with the and keys PI ONE SIDE BOTH SIDES OFF 4 After selecting ONE SIDE or BOTH SIDES press the key Then ...

Страница 36: ... selecting IN or OUT press the key Then the alarm range can be set 5 Move the crosshair cursor to the center of the alarm range with the and keys 6 Press the ENT key 7 Change the distance direction with the and keys and the bearing with the and keys 8 Press the ENT key Then the alarm range is set 9 Press the MENU key to close the menu The level of targets for alarm is set in ALARM DETECT LEVEL The...

Страница 37: ...MBER 5 Select the number with the and keys 6 Press the MENU key to close the menu Types and Meanings of AIS Symbols In the AIS the symbols are displayed overlaying them on other ships from which the information is derived Normal Symbol Meanings Sleep Display Displays ships of which information display is not performed Active Display Displays ships which are performing the information display or af...

Страница 38: ...earing with the and keys 8 Press the ENT key Then the AUTO DETECT AREA is set 9 Press the MENU key to close the menu As the ATA is optional the menu becomes valid only when the ATA board is installed Caution Warning The accuracy of the data provided by the AIS could be affected by the following factors Degraded bearing data and latitude longitude from external sensor devices cause erratic vectors ...

Страница 39: ... set 6 In case of MAN ACQ NUM change the number to be deleted with the and keys In case of CURSOR align the crosshair cursor with the target you desire to delete with the and keys 7 Press the ENT key Then the acquisition of the designated target is released 8 When releasing acquisition of several targets repeat steps 6 and 7 9 Press the MENU key to close the menu To release acquisition of all targ...

Страница 40: ...ion data sent from the AIS transponder The ATA vector take a certain time until they are fully displayed while the AIS vector is displayed as soon as the AIS data is received from the AIS transponder and own GPS SHIP information Normal Symbol Alarm Symbol Meanings Meanings Displayed when setting the acquisition Displayed when in the stable tracking state Displayed when numeral displayed after the ...

Страница 41: ...1 Select Prev with the and keys 2 Press the key The normal menu appears 3 2 Setting of Assist Items In the supplement items of the system menu to use the radar effectively the supplement functions are set Range Rings The fixed marker is displayed at the constant distance from own ship s position It is used as a scale to measure roughly the distance of a target Setup OFF ON Initial value OFF Range ...

Страница 42: ...ing the antenna rotation the setting cannot be changed Setup OFF ON Initial value OFF N UP S UP Change the mode of the N UP or S UP of the display mode The selected item can be selected in ECHO MODE Setup N UP S UP Initial value N UP Crosshair Cursor Display Set the indication methods of the crosshair cursor When OPERATING is selected crosshair cursor is displayed on the radar screen only when ope...

Страница 43: ... Press the STBY TX key to start the transmission 2 Set the range of the display to more than 0 125nm with the RANGE key 3 Press the MENU key 4 Move to the system menu Refer to 3 1 Display of System Menu 5 Select ADJUST TX DELAY ADJ 6 Change the setting of TX DELAY ADJ with the and keys When the echo reflected from the target warps to near decrease the value When the echo reflected from the target ...

Страница 44: ...e sea surface reflected echo completely disappears In the state that the sea surface reflected echo is sparsely displayed As shown in Proper below when the sea surface reflected echo from near to far distance disappears evenly the STC curve set value is proper As shown in Large when the sea surface reflected echo at near distance disappear first or in Small when the sea surface reflected echo at f...

Страница 45: ...en If the target becomes too large and the best tuning point is lost reduce the gain with the GAIN knob once to make its size small and maximize the target with the and keys Manual Tune Adjustment Due to a sudden environment change the automatic tuning may be detuned In this case use the manual tune adjustment Setup 0 0 to 100 Initial value 44 0 1 Press the STBY TX key to start the transmission 2 ...

Страница 46: ...stronger Echo Color Divide The color of an image can be changed to make it easier to see Setup STANDARD DETAIL Initial value STANDARD 1 Press the MENU key 2 Move to the system menu Refer to 3 1 Display of System Menu 3 Select ADJUST ECHO COLOR DIV 4 Change the setting of ECHO COLOR DIV with the and keys STANDARD Standard color DETAIL Displays many middle colors so that the strength or weakness of ...

Страница 47: ...ENU key 2 Move to the system menu Refer to 3 1 Display of System Menu 3 Select NMEA KGC 1 SETTING and press the key 4 Press the ENT key 5 Select Yes with the and keys 6 Press the ENT key Both the Display unit and the KGC 1 are properly set The HDT GGA and VTG signals are outputted from the KGC 1 and baud rate is set to 38 400 3 5 Preset In the Preset of the system menu the radar is customized F1 F...

Страница 48: ... program is displayed Antenna The state of the antenna is displayed The type of antenna connected and the state of voltage are displayed Panel Test Testing the operation block is performed LCD Test Testing the LCD is performed Operation Hours Reset The memorized operating hours are reset TX Hours Reset The memorized transmitting time is reset All Reset The internal memory is reset All of the set v...

Страница 49: ...t lightly and wipe the filter surface lightly with the cloth Do not use a dry cloth If done so due to static electricity the acrylic filter will attract dust Caution Never use a thinner solvent The filter surface will be chemically decomposed resulting in the loss of the transparency thinner solvent 2 Check that the radiation surface of the antenna is not dirtied by soot Dip a soft cloth into wate...

Страница 50: ...ower of the radar equipment to avoid the electrocution 1 Loosen the fixing screws and remove the cover of the antenna at the bow side The antenna drive motor can be seen at the lower side in the cabinet 2 Referring to the illustration below remove the motor brush with flat screw driver 3 Insert the screw driver in the groove of the brush and rotate it counterclockwise and slowly Be sure to replace...

Страница 51: ... Normally 3 000 hours 4 4 Trouble Diagnosis In this chapter for finding a troubled location on a ship a simple troubleshooting is mentioned 4 4 1 Information required for requesting a repair Inform us of the following items 1 Name of ship telephone number if the satellite communication system is equipped 2 Type of equipment 3 Manufacturing number of the equipment 4 ROM version Press the MENU key a...

Страница 52: ...tenna ANTENNA ERROR 2 The video signal is not inputted from the antenna ANTENNA ERROR 3 The heading signal is not inputted from the antenna ANTENNA ERROR 4 The auto tune is abnormal ANTENNA ERROR 5 The transmission voltage 250V is abnormal ANTENNA ERROR 6 The magnetron current is abnormal ANTENNA ERROR 7 The heater voltage of the magnetron is abnormal 4 4 3 Self diagnostic Function The self diagno...

Страница 53: ... radar cannot be displayed The mutual connection cable is not connected Connect correctly the mutual connection cable Detuned Re adjust Refer to Tune Select in 3 3 setting of Adjustment Items Defect of the transmission equipment Request the repair The target image is different from the actual one The heading is not correctly set Set the heading Refer to Bearing Setting in 3 3 Setting of Adjustment...

Страница 54: ... from the sea surface becomes 3 Keep the surface of the platform where the antenna is installed horizontal as possible to be parallel with the sea surface 4 Install the antenna lock in front of the large structure and exhaust chimney to avoid the blind sector inability angle of image search on the screen and to prevent the opening of the antenna from being dirtied by the engine exhaust 5 Keep enou...

Страница 55: ...tenna Obstacle Keel line Distance to be shifted from the keel line Distance to an obstacle Diameter of an obstacle over the keel line How to shift the antenna from the keel line 2 How to keep an angle of depression To keep enough angle of depressionθ that is an angle between the horizontal and the observer s line of sight In this case it is not the observer but an antenna elevate the antenna heigh...

Страница 56: ...tion of Radome Antenna Referring to the illustration below make five 5 holes on the cradle and fix the bracket and the antenna together with hexagon bolts If the thickness of the bracket is 9 to 14mm it can be installed with the supplied bolts If not within this range prepare bolts shown on the table in the next page To prevent the looseness from occurring fortify with the commercially available l...

Страница 57: ...Antenna As illustrated below install the Scanner unit facing the cut portion of the installation base toward the stern This makes it easier to perform the maintenance 1 Referring to the illustration below make holes of 14mm diameter on the installation side of platform 2 Place the Scanner unit at the specified position and fix it with four 12mm stainless bolts included in the installation material...

Страница 58: ...to 0 16 in M12x45 pitch 1 5mm stainless 4 to 9 mm 0 16 to 0 35 in M12x50 pitch 1 5mm stainless 9 to 14mm 0 35 to 0 55 in M12x55 pitch 1 5mm stainless Included in accessories 14 to 19 mm 0 55 to 0 75in M12x60 pitch 1 5mm stainless Installation of Antenna 1 Remove the protective cap covered on the output of the Scanner unit rotational shaft 2 Remove four bolts tentatively fixed to the base of the An...

Страница 59: ...r 5 Installation MDC 2000 Series 5 6 0093120005 02 Rotating base Flat washer Spring washer Installation bolt Antenna radiatyion side KODEN mark side Antenna Rotating base Remove Protective cap Projection mark ...

Страница 60: ...s of the Scanner unit thread it through the holder plate and fix it to the aerial with the screws 6 Connect the 7 pin connector of the cable to X11 of the printed circuit board and the 9 pin connector to X12 respectively 7 Install the shield cover At this moment install the shield of the cable in the groove using the shield cover But be careful for the cable not to be caught by the unit and the co...

Страница 61: ...xed under the cable holder plate together with lug terminal after removing the edge portion of heat contraction tube of the antenna cable 7 Mount the TR unit after connecting the X1 and X2 connectors removed in 3 by fixing bolts 8 7 pin connector shall be connected to X11 of the TR unit 9 pin connector to X12 9 Antenna cable shall be clamped onto the TR unit Please make sure the antenna cable does...

Страница 62: ...xed under the cable holder plate together with lug terminal after removing the edge portion of heat contraction tube of the antenna cable 7 Mount the TR unit after connecting the J3 and J4 connectors removed in 3 by fixing bolts 8 7 pin connector shall be connected to J2 of the TR unit 9 pin connector to J1 9 Antenna cable shall be clamped onto the TR unit Please make sure the antenna cable does N...

Страница 63: ...e 5 5 Shied DAT R 40V R GREEN wide cable 6 6 RED coaxal cable DAT 40V R BLUE wide cable 7 7 NC 8 BROWN coaxal cable BP SHF RB715A RB716A X12 RB717A RB718A J1 9 Shied BP SHF R Remark Color of lead wire No 10 GRAY coaxal cable V TRG 24V BLUE 1 11 NC NC 2 12 RED wide cable 40V 12V ORANGE wide cable 3 13 YELLOW wide cable 40V DAT R Shied 4 14 Shied V TRG R DAT RED coaxal cable 5 15 GREEN wide cable 40...

Страница 64: ...Compass Standard Compass Steering Compass 1 2m 0 8m Desk top Installation 1 Remove two knob bolts fixing the Display unit to the bracket 2 Remove the Display unit from the bracket and place it on the stable flat place 3 Place the bracket on the position where the Display unit will be installed and fix the bracket with five 5 mm screws 4 Place the Display unit on the installation bracket and fix th...

Страница 65: ...he Display unit from the bracket The mounting bracket and knob bolt are no longer used 3 Remove four plastic screw covers which are fitted on each corner of the display front face 4 Confirm that the unit matches with the square holes If not matched correct the square hole 5 Connect all of the connectors for power Antenna and others to the main unit 6 Install the Display unit in the installing loca...

Страница 66: ...nd the antenna and mast The Display unit should bear the placecard describing the caution Radar being adjusted do not touch the Operation unit After confirming the above items be sure to perform the adjustments The adjustments after the installation are the following items in 3 3 Setting of Adjustment Items BRG ADJ TX DELAY ADJ MBS AUTO TUNE ADJ For the adjustments refer to 3 3 Setting of Adjustme...

Страница 67: ...unit MRD 104 GND camera CCD Antenna Scanner unit GND 10 8 to 31 2VDC White Black Gray CW 259 2M To J7 To POWER To J6 To J5 Be sure to connect the KGC 1 to J5 AIS To J1 To J3 To J2 CW 561 10M CW 387 5M External buzzer External monitor CW 576 0 5M equipment CW 405 0 3M 242J158055A 10M for RB715A 242J159098A 10M for RB716A 242J159098B 15M for RB717A RB718A Slave display CW 373 5M Navigation CW 376 5M...

Страница 68: ...162 Input Output CCD camera Input Antenna Scanner unit Power Input J4 1 2 3 4 5 6 J5 1 2 3 4 5 6 1 250V 9 BP SHF R 2 24V 10 V TRIG 3 12V 11 Un connected 4 GND 12 40V 5 DAT R 13 40V 6 DAT 14 V TRIG R 7 Un connected 15 40V R 8 BP SHF 16 40V R J7 1 Camera1 input 2 Camera1 GND 3 Not used 4 Not used 5 Not used 6 Not used 7 Not used J6 J3 1 2 3 4 5 6 7 8 9 10 11 12 J1 1 2 3 4 5 6 7 8 9 10 J2 1 2 3 4 5 6...

Страница 69: ...tion of External Buzzer and External Monitor J1 Prepared by a user When installing an external buzzer or external monitor VGA monitor analog RGB input connect it via CW 576 0 5M For its wiring refer to the illustration below After soldering perform the waterproof and insulation treatment on the junction with a self fusion tape Note For the rated voltage of the buzzer use the same DC voltage of the...

Страница 70: ...ipment and the external equipment such as KODEN made GPS sensor to them The optional cable with connectors at both ends is available The CW 376 5M of which one end is left untreated is also available Prepare a cable suitable for the equipment you desire to connect The connection cable CW 376 5M consists of six core wires and the shield wire around them A signal is outputted from the white NMEA TX ...

Страница 71: ... is possible Information Priority of Sentence Latitude Longitude GGA RMC RMA GNS GLL Heading HDT HDG HDM VHW RMC RMA VTG Ship speed RMC RMA VTG VHW WPT BEC BWC BWR RMB Cross Track Error RMB XTE Wind direction MWV MWD Wind speed MWV MWD Water depth DPT DBT Water temperature MTW Output Sentence The TTM and TLL sentences can be transmitted Outputting is performed in NMEA0183 Ver 2 0 Sentence Informat...

Страница 72: ...MDC 2000 Series Chapter 6 Attached Table 0093120005 02 6 1 Chapter 6 Attached Table 6 1 Menu Configuration ...

Страница 73: ...Chapter 6 Attached Table MDC 2000 Series 6 2 0093120005 02 ...

Страница 74: ...MDC 2000 Series Chapter 6 Attached Table 0093120005 02 6 3 6 2 Specifications ...

Страница 75: ...Chapter 6 Attached Table MDC 2000 Series 6 4 0093120005 02 6 3 External View Unit mm inch ...

Страница 76: ...0 Series Chapter 6 Attached Table 0093120005 02 6 5 Dimension drawing of table installation Unit mm inch Unit mm inch Dimension drawing of flush mount installation Fixing holes for M4 screw 4pcs 1 4 Dia 5Holes ...

Страница 77: ... MDC 2000 Series 6 6 0093120005 02 RB715A Unit mm inch RB716A RB717A and RB718A with RW701A 03 04 06 Unit mm inch Weight for RB716A 21 5kg RW701A 03 22 5kg RW701A 04 RB717A RB718A 22 5kg RW701A 04 24 5kg RW701A 06 Weight 10kg ...

Страница 78: ...p to thousands of pulse waves are transmitted and received during one 360 degree rotation The typical radar antenna is a parabolic type or slotted array and its performance is essential for good radar performance Some of factors affecting the quality of the target returns are the antenna beam width and the side lobe level The narrow beam width provides a high resolution for angular orientation to ...

Страница 79: ...r an object such as sand a sandbar and muddy cay poor radar targets Since the distance from the coastline etc to your ship on a radar image to be seen as longer than that from the actual coastline more caution should be used navigating around such objects Seen Not seen 3 1 HU Coastline on radar image Actual not seen coastline Figure 7 4 Example of targets hard to be reflected Radar shadow Since th...

Страница 80: ...al image 3 1 HU Real image Virtual image Figure 7 5 False image by virtual image Duplicate target images When there is a big reflective surface nearby and perpendicular at a close distance i e when your ship is passed by a big ship etc radio wave bounces repeatedly between your ship and the other ship Therefore 2 to 4 images may appear at equal range in the direction of this target The false image...

Страница 81: ...n a weather conditions a duct occurs by the temperature inversion etc In this case the unusual propagation of the radio wave may reach distant targets out of radar range A target at more than the maximum range may appear as an image and may be displayed as a false image closer than an actual distance This phenomenon is a result of the long range echo delay time exceeds the transmission period and ...

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