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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 ap-
pear as a circular-arc false echo on the screen.

When located near large targets such as land, the
ship's mast, etc. sometimes appears as a false
echo of circular-arc shape.

1
HU

Real echo

Multiple
echoes

Fig.2-6 False echoes of radar (Multiple echoes)

1
HU

Antenna

Main beam

Side lobes

Real echo

False sidelobe
echoes

Fig.2-7 False echoes of radar (Caused by side lobe)

CAUTION

Содержание RA40C

Страница 1: ...RA40C RA41C RA42C Marine Radar Instruction Manual 1st Edition Read this manual before using the equipment K thi l ...

Страница 2: ...D 73 L Language 73 M Mark Line 51 Menu bar 45 Man Over Board MOB 34 MOB Screen 65 Monitor operation DISPLAY 73 N Nav Navigation Menu 52 Navigation screen 28 North mark NORTH M 6 71 O Off center OFF C 39 54 Option 87 P Parallel cursor CSR 38 49 PPI Screen 62 PPI NAV Screen 64 PPI PPI Screen 63 PPI SEMI3D Screen 63 Pulse table P TABLE 71 R Radar interference 6 Radar screen 26 27 Range 31 Range rings...

Страница 3: ...s to provide information about safety items and operation precautions Insure that you clearly understand the meanings of the symbols and take the necessary pre cautions BEFORE using the equipment This indicates high voltages with a risk of serious electric shock if the part is touched NEVER touch the part with bare hands etc The symbol prohibits the operation shown inside the symbol The ex ample i...

Страница 4: ...cident Only qualified personnel should remove covers on these parts To avoid accidental antenna rotation turn off ship s main and pull off out the motor fuse during repair inspect or maintenance When repairing or inspecting the scanner unit wear a safety harness and provide a secure platform so that there is no danger of falling even when the vessel lists or when there is an unexpected incident su...

Страница 5: ...E IS INSIDE YOU MAY GET AN ELECTRIC SHOCK WARNING for Display Unit See instruction manuals before connecting power Safety information is written in Earth connection essential before connecting supply There is a risk of serious electric shock if the equipment is not grounded There is a risk of receiving electric shock if these parts are touched by accident Only qualified personnel should remove cov...

Страница 6: ...warrant for navigation safety Non execution of fundamental navigation require ments such as the ship location check or lookout is not allowed If some abnormality occurs in this equipment immediately turn off the equipment POWER switch and the radar main switch in the power distribution board and notify our mainte nance section or dealer This instrument uses oscillator and LCD backlight They are ea...

Страница 7: ...lay Unit 16 3 7 Connecting Cables 17 3 7 0 Interconnecting cable RA40C Radome scanner 17 3 7 1 Interconnecting cable RA41C Radome scanner 17 3 7 2 Interconnecting cable RA42C Open scanner 20 3 7 3 Grounding wire 21 3 7 4 Power supply cable 22 3 8 Adjustment 22 3 9 Connecting External Equipment to Display Unit 23 3 10 Countermeasure for Electromagnetic Interference 23 3 11 When Discarding Your Rada...

Страница 8: ...EP 40 5 4 16 Tuning adjustment TUNE 40 5 4 17 Echo expansion ST 41 5 4 18 Displaying locus of target TRACK 41 5 4 19 Enlarging selected areas ZOOM 41 5 4 20 Increasing sensitivity S L 42 5 4 21 Switching the screen SEL WIN 42 5 4 22 Changing the color of screen PICTURE 42 5 4 23 Change to PPI screen PPI 43 5 4 24 Change to SEMI3D PPI screen SEMI3D 43 5 4 25 Change to PPI PPI screen PPI PPI 43 5 4 ...

Страница 9: ...reen 64 e ALL PPI Screen 64 f ALL PPI PPI Screen 65 g MOB Screen 65 5 5 4 2 Switching screens on PPI PPI screen SEL WIN 65 5 5 4 3 Changing the color of screen PICTURE 66 5 5 4 4 Fault Diagnosis by Self Check SYSTEM CHECK 66 5 5 4 5 Changing the content of the setting CUSTOM 68 5 5 4 5 1 Changing the settings of soft keys KEY ASSIGN 69 5 5 4 5 2 Changing the content of settings 1 PRESET1 71 5 5 4 ...

Страница 10: ... SYSTEM DIAGRAM 3 RA42C GENERAL SYSTEM DIAGRAM 4 RA40C INTERCONNECTION DIAGRAM 5 RA41C 42C INTERCONNECTION DIAGRAM 6 OUTLINE DRAWING DISPLAY UNIT 7 RA40C OUTLINE DRAWING SCANNER UNIT 8 RA41C OUTLINE DRAWING SCANNER UNIT 9 RA42C OUTLINE DRAWING SCANNER UNIT 10 FLUSH MOUNT PROCEDURE 11 INDEX RA40C TEMPLATE OF SCANNER MOUNTING HOLES ACTUAL SIZE RA41C TEMPLATE OF SCANNER MOUNTING HOLES ACTUAL SIZE ...

Страница 11: ...le of continuous distance range changes Continual variable range 8 Waterproof construction of display allows installation at any desired location 1 2 Organization of This Manual This manual provides a wide range of information necessary to operate the RA40C 41C 42C radar ranging from the basic knowledge on radars to the methods of operating installing and maintaining the radar The manual also prov...

Страница 12: ...p at a glance The radio wave radiated from the antenna is called a pulse wave and the radar performs transmission and reception alternately Several hundred to several thousand pulse waves generally are transmitted while the antenna rotates one turn Antenna There are many types of antennas generally used for a radar For example these include a parabolic antenna and a slotted array antenna The perfo...

Страница 13: ...ze of the target as well as its material and shape Targets constructed with FRP wood or other low reflectance materials or those that have a small incident angle are difficult to display on a screen Therefore FRP and wooden ships sandy beaches and sandy or muddy shallows all are difficult to catch and require attention when monitoring on the screen Especially coast lines on the radar image appear ...

Страница 14: ...mer appears at the correct distance and bearing on the screen and the latter appears behind the smokestack or mast This type of false echo is also generated by re reflection of waves from bridges and quay walls other than the ship itself B Multiple echoes If there is a large vertical reflecting plane near the ship as in the case when your ship passes alongside a large ship the wave is repeatedly r...

Страница 15: ...is a strong reflecting target near the ship it sometimes ap pear as a circular arc false echo on the screen When located near large targets such as land the ship s mast etc sometimes appears as a false echo of circular arc shape 3 1 HU Real echo Multiple echoes Fig 2 6 False echoes of radar Multiple echoes 3 1 HU Antenna Main beam Side lobes Real echo False sidelobe echoes Fig 2 7 False echoes of ...

Страница 16: ...f the target distance changes as you switch over the distance range you can determine that it is a false echo Radar interference If a radar operating in the same frequency exists near your ship interference noise may appear on the screen that is caused by transmitted waves from that radar This interference appears in various ways In most cases how ever it appears as spiral or radial patterns The R...

Страница 17: ...uch a way that its heading marker always directs to the upward direction of the screen If the ship drifts due to tidal current care must be taken because the fixed targets move to other positions True Motion TM In this mode the ship is displayed as if it is moving on a marine chart while the fixed targets such as islands and seashores are fixed in position When the ship reaches a certain position ...

Страница 18: ... to the center of the echo image on the screen EBL Electronic Bearing Line This is a marker shaped like a straight line segment that can be changed to any direc tion centering around the ship position Use this marker to examine the advancing direc tion of your ship and its relative angle with an echo When measuring the angle of an echo position the marker at the center of the echo VRM Echo 0 75 0 ...

Страница 19: ... 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 FTC Fast Time Constant When it rains or snows fine noise may appear over the entire screen making it diffi cult to identify echoes In such a case echo images on the screen can be made easily distin guishable by adjusting FTC 0 75 0 25 HU STC OFF S...

Страница 20: ...41C RA42C Item Q TY Q TY Q TY Display unit 1 RF719A 1 RF719A 1 RF719A Scanner unit 1 RB714A 1 RB715A 1 RB716A Display cover 1 1 1 Fuse 2 2 4 Interconnecting cable 1 10 m 1 10 m 1 10 m Power supply cable 1 2 m 1 2 m 1 2 m M10 hexagonal bolt 4 sets 4 sets 0 M12 hexagonal bolt 0 0 4 sets Carbon brush 0 0 2 Checking contents of your package Checking power supply voltage Determining place of installati...

Страница 21: ...adar system or start transmitting an additional rush current is required on the power line Carefully check the power supply system including wiring by using a circuit tester Tab 3 2 Power Supply Requirements A C power cannot be used 3 2 2 Fuse Replacement For the RA40C 41C 42C radar to be operated safely proper rating fuses must be used Tab 3 3 and Tab 3 4 are fuse rating tables for RA40C 41C and ...

Страница 22: ...to the ship s bow away from obstacles When installing the scanner on a mast position it in front of the mast If obstacles cannot be avoided for the ship s structural reasons refer to Shifting away from obstacles described Page 13 d Do not install the scanner near hot or heat generating items Do not install the scanner at a position where it may be subjected to smoke or hot air from smokestacks or ...

Страница 23: ...ep clear vision in the bow direction The distance to be shifted can be obtained by calculation depending on the distance from the scanner to obsta cles using the following equation Ls 0 4R D 2 m when R 15m Ls 0 025R D 2 m when R 15m where Ls distance to be shifted from keel line D diameter of obstacle on keel line R distance from scanner to obstacle Obtaining sufficient dip angle Raise the scanner...

Страница 24: ...14 Horizontal line Line of sight θ Fig 3 2 Obtaining sufficient dip angle ...

Страница 25: ...base and use these holes to fix the scanner unit to the mount base with hexagonal bolts Use the template included with this manual The bolts included with your radar equipment will suffice for mount base thickness of 9 to 14 mm 0 35 to 0 55 in If the mount base is thicker or thinner than this prepare bolts listed in Tab 3 6 Use sealing of silicon when you prevent the bolts from becoming loose Rado...

Страница 26: ...A42 Open scanner Fig 3 4 Hole positions for mounting scanner Fix four screws Mount base Washer Spring washer M10 Hexagonal bolt Radome bottom Chassis Included Fix four screws RA40C 41C Radome scanner RA42C Open scanner Double nuts Spring washer Washer M12 Hexagonal bolt Mount base Scanner base Fig 3 5 Fixing Scanner Unit Thickness of mount base Bolts necessary to fix radome scanner Material Remark...

Страница 27: ...crew When using tapping screw open holes in adequate holes When using bolts and nuts open holes in diameter of 6 mm 0 24 in When you have opened holes install the pedestal part first and then the display unit Note When you install the display by flush mount refer to appendix OUTLINE DRAWING Slide off four triangle corner cover and fix the display unit to the panel with screws After fixing the disp...

Страница 28: ...18 Avoid a display from operating under direct sun light It becomes high temperature at inside of dis play and display may be broken WARNING ...

Страница 29: ...d on the astern side There are three fixing screws Remove the cable clamping plate and rubber ring pass cable through the introduc tion opening put the rubber ring from both ends of it and clamp the cable to the scanner unit with screws via the fixing plate Plug the connector fitted to the cable into the X1 connector on the PCB Replace the aluminum cover At this time attach a cable shield onto a d...

Страница 30: ...attach a cable shield onto a ditch with the aluminum cover However be careful that the cable will not be caught up be tween the main unit and cover Replace the upper part of the radome Be careful not to bump it against the an tenna in the same way as when removing it Make sure that the cover is fitted in the correct direction as shown in Fig 3 7 2 The upper and lower parts of the radome each have ...

Страница 31: ...tern side Shield cover Cable shield Radome bottom Fixing plate Rubber ring Interconnecting cable Fix connector on PCB X1 X1 Connect here Radome bottom PCB Inner shield Fig 3 8 1 Fitting interconnecting cable RA40C ...

Страница 32: ... X11 X12 Antenna Stern side Shield cover Cable shield Radome bottom Fixing plate Rubber ring Interconnecting cable X12 Connect here Radome bottom PCB Inner shield X11 Connect here Fig 3 8 2 Fitting interconnecting cable RA41C ...

Страница 33: ...tor X1 to Heading switch X2 Remove the four bolts securing the fixing plate at the cable entrance Remove the metal fixing plate rubber seal and washer that secure the cable Pass the cable through as shown in the diagram below replace the above items and tighten the bolts Return the transceiver to its original position and secure it with the removed bolts Connect 7 pin connector to X11 and 9 pin co...

Страница 34: ...emove connector Fixing bolt Fixing plate Inter connection cable Clumper 5 10 mm Fixing bolt Cable shield terminal Washer Fixing plate Scanner unit Inter connection cable Rubber Cable inlet Fig 3 9 Fitting interconnecting cable ...

Страница 35: ...e bolts you have attached when installing the scanner unit to the ship s hull as shown in Fig 3 11 The crimp terminal and grounding wire are not included with the radar equipment SCANNER POWER OPTION Grounding terminal Grounding wire Fig 3 10 Grounding display unit to earth Mount base Radome bottom Chassis To ship s hull Crimp terminal Grounding wire Radome scanner Grounding wire To ship s hull Sc...

Страница 36: ...max length cross section 12Vdc 3 5 mm2 3 m 6 0 mm2 5 m 24Vdc 2 0 mm2 6 m 3 5 mm2 10 m 3 8 Adjustment Be sure to operate the following adjustment If this is not adjusted properly the radar picture does not display true image When you have finished installing the scanner and display units and connecting cables turn on the power to the display and scanner units and check to see if they operate nor ma...

Страница 37: ...untermeasure for Electromagnetic Interference RA40C 41C 42C radar provides shields in the units and the inter unit connection ca ble When the radar however is closely installed to radio equipment such as VHF trans ceiver UHF transceiver etc or the radar and or radio equipment are not sufficiently grounded to the hull or ship s earth the radar may happen to cause EMI trouble Followings are general ...

Страница 38: ...proving when taking off their grounding Try to take off grounding 2 Confirm power supply cable connections and modify to the connection A or B above 3 Try to shift the display unit and inter unit connection cable of radar to be apart from radio equipment 4 Try to shift the feeder of radio equipment to be apart from each units and the inter unit connection cable of radar 5 Try to shift the antenna ...

Страница 39: ...sing the POWER key more than 3 seconds then the radar system will power off 5 2 Adjusting brilliance of screen and key backlight 1 Press the BRILL key Bar and figure indicating brilliance and figure indicating key backlight appear on the screen 2 Adjust each items with the control knob Items can be selected by up down cursor 3 When the adjustment is finished press either the BRILL key or the ENT k...

Страница 40: ...knob Adjust key backlight with knob ENT Press ENT key to return Radar turns into ST BY mode when 2 minutes timer is finished and ST BY is displayed 5 3 2 Transmitting POWER Press POWER key to operate radar picture appears on the screen Another press POWER key radar turns to stand by mode Keep pressing POWER key more than 3 seconds radar turns to power off RANG UP or Pressing RANGE UP key produces ...

Страница 41: ... RANGE UP key produces a long distance range and RANGE DOWN key a short distance range RADOME SCANNER RA40C RANGE 0 125 0 25 0 5 0 75 1 5 3 6 12 24 Number of rings 2 2 2 3 6 6 6 6 6 Range ring interval 0 062 5 0 125 0 25 0 25 0 25 0 5 1 2 4 RADOME SCANNER RA41C RANGE 0 125 0 25 0 5 0 75 1 5 3 6 12 24 36 Number of rings 2 2 2 3 6 6 6 6 6 6 Range ring interval 0 0625 0 125 0 25 0 25 0 25 0 5 1 2 4 6...

Страница 42: ...ate 5 3 6 Sensitivity adjustment GAIN 1 When the GAIN key is pressed the GAIN display on the left side of the screen will be reversed as G 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 sensitivity can be manually adjusted When the AUTO key is pressed all GAIN STC and FTC will enter an AUTO state 3 After t...

Страница 43: ...will be switched to MANU mode too b To switch from the MANUAL state AUTO Set STC GAIN and FTC at AUTO 5 3 8 Removing rain and snow clutter FTC 1 When the FTC key is pressed the FTC display on the left side of the screen will be reversed as F 500 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 sensitivity can b...

Страница 44: ...s 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 If press other keys MOB data will be remained and return to previous screen ...

Страница 45: ... in effect note 1 xxx x φ indicates EBL1 EBL1 Control knob EBL1 EBL1 is displayed and the process is finished µθ Other function key EBL1 is displayed and the function is shifted µθ EBL1 EBL1 is turned off b b To turn off the EBL1 When the EBL1 key is pressed twice EBL1 disappears EBL1 OFF Note Refer to 5 5 1 1 Bearing measurement EBL1 5 4 2 Bearing measurement EBL2 The operation is the same as EBL...

Страница 46: ...measurement of the angle 1 Press FL EBL2 key SET START POINT is displayed and a small cross mark appears FL EBL2 FL EBL2 is turned ON and Select FL EBL2 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 Up Down Left Right ENT Criterion of the reference point is set Plac...

Страница 47: ...4 7 Changing the group of Soft Keys NEXT 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 The NEXT key switches between allocated function groups on the soft key which numbers 1 7 are indicated Εϖερψ τιµε πρεσσινγ τηε ΝΕΞΤ κ...

Страница 48: ...38 The function can be changed at the KEY ASSIGNMENT function in the CUSTOM menu of the SETUP ...

Страница 49: ...screen beside MODE To cancel the VAR RNG function press VAR RNG key once more The range changes continuously with the up down cursor while the VAR RNG function is on and it changes in steps with the RANGE UP or RANGE DOWN keys If pressing other keys return to the normal state from continuously range change state 5 4 12 Changing display modes MODE 1 Select MODE from the pull down display items usin...

Страница 50: ... the distance and the left cursor key in the direction of the angle 4 After the setting the guard zone finish by pressing the ENT key Press the GZ key twice to cancel the guard zone function GZ Up Down Left Right ENT Up Down Left Right ENT Setting completed ξ Setting the center of GZ Setting the scope of GZ µθ GZ Canceling GZ Stop the alarm tone Press the MENU key or ENT key during the alarm tone ...

Страница 51: ...cted after setting a SLEEP mode a ST BY state is entered and the backlight turns off after a 30 second transmission Power saving mode Two minutes before the fixed time the backlight turns on and the 2 minute timer starts Then at the fixed time another 30 second transmission begins This series of actions are repeated If any one key is pressed during the course of this action the SLEEP function will...

Страница 52: ... 5 5 3 5 Echo expansion ST ST1 ST2 OFF Expansion rate ST1 ST2 Note The OFF state is not displayed on the screen and the ST2 display disappears 5 4 18 Displaying locus of target TRACK When the TRACK key is pressed TK 15SEC is displayed on the left side of the screen and track mode is entered 15S indicates the length of the track and displays a maximum of 15 second long sailing track Note Refer to 5...

Страница 53: ...t to increase sensitivity you can choose sensitivity from two pulse lengths The short pulse SHORT gives you sharp images with high distance resolution The long pulse LONG provides high sensitivity and shows targets in large size for easy identification although distance resolution is reduced Press the S L key to select the Pulse length LONG or SHORT The pulse length changes L Long and S Short alte...

Страница 54: ...y has been selected and a night display if day display selected Note Refer to 5 5 4 3 Changing the color of screen PICTURE 5 4 23 Change to PPI screen PPI Press the PPI key the screen will change to PPI screen Use to change the screen from other modes to PPI 5 4 24 Change to SEMI3D PPI screen SEMI3D Press the SEMI3D key the screen will change to SEMI3D PPI screen Use to change the screen from othe...

Страница 55: ... NAV screen PPI NAV Press the PPI NAV key the screen will change to PPI NAV screen Use to change the screen from other modes to PPI NAV Note The ZOOM OFF C FL EBL2 and FL VRM2 can not be used on this mode 5 4 27 Change to ALL PPI screen ALL PPI Press the ALL PPI key the screen will change to ALL PPI screen Use to change the screen from other modes to ALL PPI Note 1 The range rings interval display...

Страница 56: ...each screen 2 Return to PPI PPI screen mode pressing a key except MENU range UP or DOWN or POWER key 3 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 When your ship navigates in high speed use PPI screen to get fast refreshing picture 75 25 HU S 25 125 ALL PPI P...

Страница 57: ...DE 1 Select MODE from the pull down display items using the up down cursor key and press either the ENT key 2 When the MODE sign is displayed beside the MODE item select a mode with the up down cursor keys and press the ENT key 3 The display mode indicates upper left on the screen UP DOWN UP DOWN Select MODE Select HU Head up Select HS Head set Select NU North up Select CU Course up Select TM True...

Страница 58: ...e the cross cursor to the center of the warning zone to be set and press the ENT key 5 From the cross cursor position set in 4 above as the center expand the guard zone as follows 6 After the setting the guard zone finish by pressing the ENT key To cancel the guard zone function select OFF by common operation for the GZ menu and press the ENT key ENT Up Down Left Right ENT Up Down Left Right ENT S...

Страница 59: ...OFF C is displayed at the upper right and SET OFF CENTER POINT at the bottom of the screen and setting is ready to be entered Move the cross cursor with the cursor keys to move the ship s to the intended location and press the ENT key The ship s location will be displayed at the cursor s location The display at the upper right will be normalized from the reverse state which indicates that the OFF ...

Страница 60: ...es of actions are repeated If any one key is pressed during the course of this action the SLEEP function will be canceled a Setting procedure Up Down ENT Up Down Select OFF ENT SLEEP function is turned OFF Select SLEEP Select 5min ENT POWER 30 second transmission every 5 min Select 10min ENT POWER 30 second transmission every 10 min Select 15min ENT POWER 30 second transmission every 15 min Transm...

Страница 61: ...56 b If a key is pressed while the 2 minute timer is in use or during transmission the SLEEP function is canceled ...

Страница 62: ... 5 3 1 Sensibility adjustment GAIN 1 Use the up down cursor keys to select GAIN from among the pull down display items and press either the ENT key or the right cursor key 2 Select MANU from the MANU AUTO display beside the GAIN item using the up down cursor keys and press the ENT key 3 The present state of GAIN is displayed in reverse on the screen left as G 35 and an adjustable state is entered ...

Страница 63: ...ANU mode GAIN and FTC will be switched to MANU mode too Note When you select HARBOR mode FTC will be switched to MANU mode 5 5 3 3 Removing rain and snow clutter FTC Refer to the section Sensibility adjustment GAIN Up Down ENT Up Down Select FTC Select MANU ENT Control knob ENT Set to MANU mode FTC adjustment Select AUTO ENT Set to AUTO mode 5 5 3 4 Adjusting receiver tuning TUNE Refer to the sect...

Страница 64: ...ate ST1 ST2 5 5 3 6 Displaying locus of target TRACK 1 Use the up down cursor keys to select TRACK from among the pull down display items and press the ENT key 2 Select 15SEC 30SEC 1MIN 3MIN 6MIN or CONT from the display beside the TRACK item using the up down cursor keys and press the ENT key TRK 15S is displayed on the left side of the screen and track mode is entered 15S indicates the length of...

Страница 65: ...ss the ENT key 2 Select the ON using up down cursor keys from the ON OFF display beside the ZOOM item and press the ENT key 3 A small cross cursor for setting and SET ZOOM POINT are displayed at the screen center and at the bottom respectively and the magnification point is to be set Use cursor keys to move the cross cursor to the point to be magnified press the ENT key and the setting is complete...

Страница 66: ...want to increase sensitivity you can choose sensitivity from two pulse widths The short pulse SHORT gives you sharp images with high distance resolution The long pulse LONG provides high sensitivity and shows targets in large size for easy identification although distance resolution is reduced 1 Use the up down cursor keys to select S L from among the pull down display items and press the ENT key ...

Страница 67: ...e heading marker on and off b Stern Mark Display non display of the stern line c North Mark Display non display of the north mark ST BY screen Setting the screen display in stand by NAVI Navigation Data screen NOR Normal screen e Buzzer Volume Setting the volume of the buzzer a Heading Flash b Stern Mark c North Mark d ST BY screen e Buzzer Volume f VRM Unit g Water temperature h Depth Unit i EBL ...

Страница 68: ... Data with 12bits serial signal 10BIT Compass Data with 10bits serial signal l Heading Type Heading Information Type setting MAG Magnetic bearing TRUE True bearing m Cross cursor position display Mode DIST BRG Range and Bearing indication LAT LON Latitude and Longitude indication n Transmitting pulse width Pulse setting for Range Note Note P TABLE PUSLE TYPE 0 25 NM 0 5 0 75 NM NM 1 5 NM 3 NM 6 NM...

Страница 69: ...73 ...

Страница 70: ...nt tone f Bearing pulse rot IN Change the setting when connected to the other type of radar g Bearing pulse rot OUT Change the setting when connected to the other type of radar h Built in simulator switch for Demonstration i Interference Rejection Reject the interference from the other radar OFF IR OFF IR1 ON level 1 IR2 ON level 2 a a Guard Zone Level b Guard Zone Mode c Hold d Display Unit Mode ...

Страница 71: ... screen conditions while standby state After finished operation such as EBL VRM about 30 seconds the screen return to standby screen Setting HOLD POWER Operation Under Tx Under HOLD mode ST BY DISPLAY Turn to transmission off EBL VRM operation seconds 30seconds Time used NOTE EBL and VRM function is usable in HOLD state Note 2 15 languages CHI Chinese KOR Korean DAN Danish NOR Norwegian ENG Englis...

Страница 72: ...he ENT key MENU Left Right Up Down ENT Select SETUP Select CUSTOM Common operation for SETUP When the above operations have been conducted 4 items namely KEY ASSIGN PRESET1 PRESET2 and ADJUST are displayed beside the CUSTOM item Further explanation concerning the CUSTOM menu items will be done on the assumption that the above common operations for CUSTOM have already been conducted CUSTOM SETUP WI...

Страница 73: ...tion of a key with an preset function Example 2 When the allocated key is pressed its function will be altered to the one selected in 1 above and the previous function will be canceled The current settings for SET1 4 will be displayed below NEXT In order to switch the settings SET1 4 use the right left cursor keys Double settings setting 1 item for more 1 5 6 7 4 3 2 KEY ASSIGNMENT EBL1 EBL2 RINGS...

Страница 74: ...T Key 6 altered from Select HDG OFF The display beside key 6 Exit from OFF C to HDG OFF changes to HDG OFF KEY ASSIGNMENT Example 2 Re allocate SEL WIN to key 1 in setting 2 Left Right Up Down 1 ENT Key 1 in setting 2 select SEL WIN SEL WIN is displayed Exit from is altered to SEL WIN From SET1 beside key 1 KEY ASSIGNMENT to SET2 Example 3 Alter key 1 in setting 1 from ST to HDG OFF and then reset...

Страница 75: ...he ENT key MENU Left Right Up Down ENT Select SETUP Select CUSTOM Common operation for SETUP When the above operations have been conducted 4 items namely KEY ASSIGN PRESET1 PRESET2 and ADJUST are displayed beside the CUSTOM item Further explanation concerning the CUSTOM menu items will be done on the assumption that the above common operations for CUSTOM have already been conducted CUSTOM SETUP WI...

Страница 76: ...tion of a key with an preset function Example 2 When the allocated key is pressed its function will be altered to the one selected in 1 above and the previous function will be canceled The current settings for SET1 4 will be displayed below NEXT In order to switch the settings SET1 4 use the right left cursor keys Double settings setting 1 item for more 1 5 6 7 4 3 2 KEY ASSIGNMENT EBL1 EBL2 RINGS...

Страница 77: ...T Key 6 altered from Select HDG OFF The display beside key 6 Exit from OFF C to HDG OFF changes to HDG OFF KEY ASSIGNMENT Example 2 Re allocate SEL WIN to key 1 in setting 2 Left Right Up Down 1 ENT Key 1 in setting 2 select SEL WIN SEL WIN is displayed Exit from is altered to SEL WIN From SET1 beside key 1 KEY ASSIGNMENT to SET2 Example 3 Alter key 1 in setting 1 from ST to HDG OFF and then reset...

Страница 78: ...een display WINDOW A function to switch the display method of the screen A selection can be made from among the 7 patterns of screen arrangements from the ordinary PPI display to the 2 screen PPI display etc a PPI screen b PPI screen SEMI3D screen c PPI screen PPI screen Range can be operate in each screen d PPI screen Navigation screen e All PPI screen PPI all the screen display f All PPI screen ...

Страница 79: ...ITEM PPI SEMI3D PPI NAV PPI PPI ALL PPI ALL PPI PPI MOB RANGE VRM1 EBL1 VRM2 EBL2 FL VRM2 EBL2 RINGS ON OFF ZOOM OFF CENT CSR HDG OFF STERN M NORTH M GAIN STC FTC TUNE ST GZ SEL WIN TXON OFF Independent control at time as two screen Switching the screen is necessary SEL WIN It becomes simultaneous control at the time as two screen It can be used only at the time of PPI screen It can t be used Scre...

Страница 80: ...63 a PPI Screen All functions can be used on this screen D V T D Q T g t PPIScr een ...

Страница 81: ...fast refreshing picture Note Functions ZOOM OFF C FL EBL2 and FL VRM2 can not be used on this screen Note The function RANGE GAIN STC FTC and GZ can be used for each screen independently The screen selected in SEL WIN that the range indicator displayed in reverse can be controlled Note The cross cursor displayed only on selected screen Operation a Changing RANGE of LEFT screen 1 When the RIGHT ran...

Страница 82: ...2 Press the VRM1 key will be displayed in reverse and ready for adjusting VRM1 3 Determining the distance with the control knob Note If operate the VRM1 on the RIGHT screen VRM1 will move to the RIGHT screen Operate VRM2 EBL1 or EBL2 in a same manner as VRM1 d PPI NAV Screen Note The ZOOM OFF C FL EBL2 and FL VRM2 can not be used on this screen e ALL PPI Screen Note1 The RANGE RINGS interval and D...

Страница 83: ...NT key to return previous screen with keeping the MOB position data 5 5 4 2 Switching screens on PPI PPI screen SEL WIN Switching to the desired screen for activation on a PPI PPI screen display The SEL WIN function is switches the activated screen to effect the operation such as RANGE GAIN STC FTC VRM1 2 EBL1 2 and guard zone The range indicator of activated screen is displayed in reverse When SE...

Страница 84: ... Fault Diagnosis by Self Check SYSTEM CHECK Verifying the problem point by SYSTEM CHECK when for example some abnormality has occurred 1 Select SYSTEM CHECK from the pull down display items using up down cursor key and press the ENT key 2 The system check screen will appear While watching the screen check the following i Whether all items are marked OK If any item is marked NG the indicated locati...

Страница 85: ...es the status of the voltage used for tunning and its voltage value l Cumulative usage time Indicates the cumulative time your radar is used OPERATE Duration of time during which the power supply is turned on TRANSMIT Duration of time transmitting m ROM version Indicates the ROM software version n Front panel keys As you press any front panel key when the SYSTEM CHECK screen is on the correspondin...

Страница 86: ...NMENT PRESET1 SUB MENU PRESET2 SUB MENU ADJUST SUB MENU MK LINE ON OFF List of Custom Menu PRESET1 SUB MENU PRESET2 SUB MENU HM FLSH ON OFF GZ LEVEL 1 7 STERN M ON OFF GZ MODE IN OUT NORTH M ON OFF HOLD ON OFF ST BY NAVI NOR DISPLAY RDR MONI NAV BUZ VOL OFF LOW HIGH EXT BUZ OFF CONT INT RM UNIT NM KM SM IN P R 1080 1024 2048 4096 360 DEPTH M FT FM OUT P R 1080 1024 2048 4096 360 TEMP C F DEMO ON O...

Страница 87: ... down cursor keys and press the ENT key 3 When the ENT key is pressed electric bearing line EBL1 appears and the angle from the direction of the ship s head which is set at 0 degree will appear in a reverse display at the lower left of the screen 4 Place the marker on the center of the target with the control knob and read the bearing Then the display setting for EBL1 will be completed either a wi...

Страница 88: ...y with the VRM1 display still on the screen Up Down ENT Up Down ENT Control knob ENT a Select VRM1 Select ON VRM1 operation µ MENU b µ Other function key c Note 1 xx xx NM indicates VRM1 5 5 1 3 Bearing measurement EBL2 Refer to the section Bearing measurement EBL1 The EBL2 will appear in a reverse display at the lower right of the screen Note 2 xxx xφindicates EBL2 5 5 1 4 Determining the distanc...

Страница 89: ...to ZOOM and OFF C function 5 5 1 6 Measuring the angle between two points FL EBL2 a Preparation for the measurement 1 Use the up down cursor keys to select FL EBL2 from among the pull down display items and press the ENT key 2 Use the up down cursor keys to select ON from the ON OFF display beside the FL EBL2 items and press the ENT key SET START POINT is displayed and a small cross mark appears O...

Страница 90: ...ng as you hold it down Up Down ENT The heading marker is not displayed as long as you hold ENT key down Select HDG OFF 5 5 1 8 Using parallel cursors CSR Normally EBL is used to measure the exact bearing from the position of your ship to a target However you can also use parallel cursors 1 Use the up down cursor key to select CSR from among the pull down and display items and press the ENT key ON ...

Страница 91: ... Range rings non appears Number of range rings and range interval Radome antenna RA40C Range 0 125 0 25 0 5 0 75 1 5 3 6 12 24 Number of Rings 2 2 2 3 6 6 6 6 6 Interval 0 062 5 0 125 0 25 0 25 0 25 0 5 1 2 4 Radome antenna RA41C Range 0 125 0 25 0 5 0 75 1 5 3 6 12 24 36 Number of Rings 2 2 2 3 6 6 6 6 6 8 Interval 0 0625 0 125 0 25 0 25 0 25 0 5 1 2 4 4 Open antenna RA42C Range 0 125 0 25 0 5 0 ...

Страница 92: ...or to the position that is to output position data with up down and left right key Use the up down cursor keys to select TARGET from among the pull down display items and press the ENT key The L L data of the position will be output to NMEA port with TLL format Up Down output the L L position of the cursor Select TARGET Note When activate this function nothing happens on the screen 5 5 1 12 Follow...

Страница 93: ...52 ...

Страница 94: ...ble easy way to operate 4 1 Key layout Key No SET1 SET2 SET3 SET4 1 EBL1 EBL2 RINGS PPI 2 VRM1 VRM2 TUNE PPI 3D 3 VAR RNG FL EBL2 ST PPI PPI 4 TRACK FL VRM2 ZOOM PPI NAV 5 TARGET GZ SLEEP ALL PPI 6 SEL WIN OFF C PICTURE ALL PPI2 7 NEXT NEXT NEXT NEXT Tab 5 Function of soft key Factory setting Every time Next key is pressed soft key group switches as follows Cursor key MENU key ENT key 3 1 HU s RAN...

Страница 95: ...r connector Use this connector to plug in the inter connecting cable to connect the scanner unit Refer to 3 7 Connecting cable 4 3 Radar screen Single screen SCANNER POWER OPTION Ship s position EBL2 VRM2 Indicate soft key 3 1 HU L 1 58 RADAR OFF EBL1 VRM1 EBL2 VRM2 FL EBL2 FL VRM2 NEXT A HOLD ZOOM OFF C LAT LON 35 08 D 42N 139 02 D 53E 2 129 D 8 2 12 D 34NM 0 23NM HDG 129 0 T SPD 12 0 KT G 59 S A...

Страница 96: ...T F AT AT Range Left screen Range Right screen Range ring interval Range ring interval Left screen Right screen Display mode Pulse width Cross cursor Course error EBL1 VRM1 Cruising speed Guard zone Right screen Way point Heading angle Guard zone Left screen Cross coursor position Enlarging echo Ship s position VRM2 LAT LON or Distance Bearing Track EBL2 AUTO Left Right Gain Left Right STC Left Ri...

Страница 97: ...displayed SOG when Speed Over Ground data is used Picture hold Gurad zone Right screen Guard zone Left screen 6 1 0_ HU L GZ IN 75 25 GZ IN HOLD Range Left screen Range Right screen Range ring interval Range ring interval Left screen Right screen Display mode Pulse width Cross cursor N A V D I S P L A Y W P 1 3 4 4 C O U R S E 1 2 5 N M H D G 1 2 9 0 0 2 3 N M S P D 1 2 8 K T L AT 3 5 0 8 4 2 N L ...

Страница 98: ...29 Indicates starboarding the helm right Indicates porting the helm left Deviation from course Indication mark 0 00 0 02 or 0 04 or 0 08 or 0 16 or Tab 6 Indication of deviation from course ...

Страница 99: ...cement 3000hour typ 500hour guarantee 2 LCD back light This part is mounted in the display unit If the display screen is ex tremely dark and its illumination cannot be corrected by adjusting bright ness the LCD back light may be faulty or may have burnt out In such a case replace it Consult your distributor for replacement of this part Period of the replacement 15000hour typ 1000hour at 0 Inspecti...

Страница 100: ...te Before maintenance of scanner you can hang a radome upper using cord through hole as follows Fig 6 3 Method for replacing fuse Push Power supply cable Wire White Turn counterclockwise and pull Fuse Spring Push and turn clockwise Replace new fuse To display unit Fig 6 2 Method for replacing fuse Fixing screw Hole A Top view Cord Cord A Radome Upper Radome bottom ...

Страница 101: ...cement 3000hour typ 500hour guarantee 2 LCD back light This part is mounted in the display unit If the display screen is ex tremely dark and its illumination cannot be corrected by adjusting bright ness the LCD back light may be faulty or may have burnt out In such a case replace it Consult your distributor for replacement of this part Period of the replacement 15000hour typ 1000hour at 0 Inspecti...

Страница 102: ...te Before maintenance of scanner you can hang a radome upper using cord through hole as follows Fig 6 3 Method for replacing fuse Push Power supply cable Wire White Turn counterclockwise and pull Fuse Spring Push and turn clockwise Replace new fuse To display unit Fig 6 2 Method for replacing fuse Fixing screw Hole A Top view Cord Cord A Radome Upper Radome bottom ...

Страница 103: ...pe This radar is RA40C RA41C or RA42C 3 Manufacturing number indicated on the back of the display unit 4 Fault symptoms and inspection results 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 for installation power must be off Even power switch is OFF this radar is still sup plied power...

Страница 104: ...n 5 3 Backlight is faulty Contact your dealer 4 Video does not appear al though characters are displayed Interconnecting cable is out of place Connect interconnecting cable correctly 5 Echo image on screen differs from actual image Ship s heading is incorrectly set Set ship s heading correctly See Section 5 5 4 5 4 Timing adjustment is incorrectly set Set timing adjustment correctly See Section 5 ...

Страница 105: ...n 30 m RA40C Within 25 m RA41C 42C Distance accuracy Better than 0 9 of maximum range of the scale in use or 8m whichever is the greater Minimum detecting distance Within 30 m RA40C Within 25 m RA41C 42C Bearing resolution Within 7 5 RA40C Within 4 5 RA41C Within 3 0 RA42C Bearing accuracy 1 or less Warm up time 2 minutes Environment conditions Ambient temperature range S U 25 to 55 C D U 0 to 55 ...

Страница 106: ...Wind resistance 100 knots max Waterproof standard D U IPX 5 S U IPX 6 Interconnecting cable 30 m in max RA40C 100 m in max RA41C 42C Noise D U 65 dB or less S U 65 dB or less RA40C 41C S U 70 dB or less RA42C ...

Страница 107: ...width µsec Peak Power kW Pulse width µsec Peak Power kW 0 12 0 02 1 5 50 0 08 4 50 to 20 0 3 0 05 2 0 50 0 25 4 50 to 20 0 8 0 1 2 0 50 0 8 4 50 to 20 Radio wave type and frequency P0N 9445 30 MHz RA40C P0N 9410 30 MHz RA41C 42C Antenna revolution 24 rpm 20 Transmit receive switching Magic T and limiter type RA40C Circulator and limiter type RA41C 42C Intermediate frequency 60 MHz logarithmic ampl...

Страница 108: ...sec 1 3 6 min and continuous Other functions Interference rejection Zoom Sleep mode Hold mode Course error display Parallel cursors Stern marker and Navigation data display mode Panel brightness 4 levels Language support Chinese Danish English French German Greek Italian Japanese Korean Norwegian Portuguese Russian Spanish Swedish and Turkish 8 4 External Interface NMEA0183 2 channels One standard...

Страница 109: ...8 External Connection and function X1 Connector for Option pin No Name function 1 NMEA2 A NMEA ch2 data input A 19 NMEA2 B NMEA ch2 data input B 2 GND 20 EXBUZ Output for External Buzzer 3 EXBUZ Output for External Buzzer controlled ship s power output 21 VIDEO_IN Video input for Monitor operation 0 to 1V negative video Zi 50ohm 4 VIDEO_OUT Video output for External Monitor 0 to 1V negative video ...

Страница 110: ...ta input apply 5V pulse between and isolated 28 GND 11 MARK_I External Marker signal input ex Radar Buoy negative video 0 to 1V Zi 50ohm 29 12V External interface power 100mA max 12 SIN Compass Interface for SIN COS type 30 COS Compass Interface for SIN COS type 13 REF Compass Interface for SIN COS type SIN COS signal SIN REF 1V COS REF 1V 31 not used 14 GND 32 NMEA_OUT NMEA data output ex MOB dat...

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