Onwa KR-1338C Operator'S Manual Download

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3.12 Suppressing Noise

Electrical noise can be suppressed by turning on

8.NOISE REJ

on the OTHERS

menu.

3.13 Adjusting Brilliance of Markers

2. Mark brill

on the OTHER menu adjusts the brilliance of markers such as

the cursor.

3.14 Outputting Target Position

Target position data can be output to the navaid in IEC 1162 format. Press and
hold down the [TLL] key to output the data. This function requires position data
and heading signal.

Summary of Contents for KR-1338C

Page 1: ...10 4 TFT LCD COLOR MARINE RADAR KR 1338C 1668C OPERATOR S MANUAL KR 1338C 1668C ...

Page 2: ......

Page 3: ...wave radiation which can be harmful to the human body particularly the eyes Never look directly into the antenna radiator from a distance of less than 1 m when the radar is in operation Turn off the radar power switch before servicing the antenna unit Post a warning sign near the switch indicating it should not be turned on while the antenna unit is being serviced Prevent the potential risk of som...

Page 4: ...pment damage Do not use the equipment for other than its intended purpose Personal injury can result if the equipment is used as a chair or stepping stool for example Do not objects on the top of the equipment The equipment can overheat or personal injury can result if the object falls ...

Page 5: ...on Speed 8 1 6 The Radar Display 9 2 1 Control Description 10 2 2 Display Indication and Markes 11 2 3Turning the Radar On and Off 12 2 4 Transmitting 12 2 5 Stand by 12 2 6 Selecting the Range 13 2 7 Adjusting Picture Brilliance 13 2 9 Adjusting Receiver Sensitivity 15 2 10 Adjusting the A C SEA Control reducing sea clutter 15 2 11 Apply the A C RAIN reducing rain clutter 17 2 12 Erasing the Head...

Page 6: ...ting Pulsewidth 28 3 7 Guard Alarm 29 3 8 Watchman 31 3 9 Display Navigation Data 32 4 1 Multiple Echoes 36 4 2 Side lobe Echoes 36 4 3 Indirect ECHOES 37 4 4 Blind and Shadow Sectors 38 3 MENU OPERATION 24 4 FALSE ECHOES 35 3 10 OTHER MENU Description 33 3 11 Function Keys 3 12 Suppressing Noise 35 3 13 Adjusting Brilliance of Markers 35 3 14 Outputting Target Position 35 34 2 15 Using the Offset...

Page 7: ...the Fuse 40 5 3 Troubleshooting 40 5 5 Life Expectancy of Magnetron 42 6 1 Antenna Unit Installation Sitting handling considerations 43 6 2 Display Unit Installation Mounting considerations 51 5 MAINTENANCE TROUBLESHOOTING 39 6 INSTALLATION 43 5 4 Self Test 40 MENU TREE 60 AIS 61 KR 1338C 1668C OUTSIDE DRAWING 71 KR 1338C 1668C INTERCONNECTION 74 ...

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Page 9: ...er about whether we are achieving our purposes Thank you for considering and purchasing ONWA equipment 1 Your radar has a large variety of functions all contained in a remarkably small cabinet The main features of the MODEL KR 1338C are Traditional ONWA reliability and quality in a compact lightweight and low cost radar Durable brushless antenna motor On screen alphanumeric readout of all operatio...

Page 10: ...51 5 m s TRANSCEIVER MODULE contained in radome 1 Transmitting tube MSF1421B or MAF1421B 2 Frequency 9410 MHz 30MHz 3 Peak output power 4kW nominal 4 Pulselength pulse repetition rate 0 08 S 2100 Hz 0 125 0 25 0 5 0 75 1 5nm 0 3 S 1200 Hz 1 5 2 3nm 0 8 S 600 Hz 3 4 6 8 12 16 24 36nm 5 Warm up time 1 30 minutes 6 Modulator FET switching method 7 I F 60MHz 8 Tuning Automatic or manual 9 Receiver fro...

Page 11: ...Cursor Alarm zone North mark heading sensor input required 10 Alphanumeric indication Range Range ring interval Pulselength Interference rejection IR VRM EBL Stand by ST BY Radar alarm Echo stretch ES Range to cursor Bearing to cursor Echo trailing TRAIL Trail time Trail elapsed time Navigation data navigation input required heading HDG heading sensor input required 11 Vibration Vibration Total am...

Page 12: ... Horizontal 7 Antenna rotation speed 24 rpm 8 Wind resistance Relative wing speed 100 knots 51 5 m s TRANSCEIVER MODULE contained in antenna 1 Transmitting tube MAF1421 or MSF1421 2 Peak output power 4kW nominal 3 Pulselength pulse repetition rate 0 08 S 2100 Hz 0 125 0 25 0 5 0 75 1 5nm 0 3 S 1200 Hz 1 5 2 3nm 0 8 S 600 Hz 3 4 6 8 12 16 24 36 48 64nm 4 Bandwidth Tx pulselength 0 3 S and 0 08 S 25...

Page 13: ... scale nm Range Range interval and no of Rings 0 125 0 0625 2 0 25 0 125 4 0 75 0 25 3 1 0 25 4 1 5 0 5 3 2 0 5 4 3 1 3 4 1 4 6 2 3 8 2 4 12 3 4 16 4 4 24 6 4 36 12 3 48 12 4 64 16 4 2 Compass safe distance Standard Compass Display unit 0 75m 0 6m 0 74m 1 0m Antenna unit Steering Compass 5 ...

Page 14: ...HW Heading True HDT HDG HDT VHW VHW Course True RMA RMC VTG Course Magnetic VTG RMA RMC Waypoint Range Bearing RMB BWC BWR Loran time difference RMA GLC GTD Water depth DPT DBT Water temperature MDA MTW XTE RMB XTE APB Calculated value based Magnetic variation AIS VDO VDM ACA ACS ALR ACK 6 ...

Page 15: ...CONFIGERATION OF KR 1338C 1668C ANTENNA UNIT Antenna cable KRC 003 10 15 20 10 15 20m 7 6 Pin 8 Pin 3M 10 5 to 40VDC KR 1338C KR 1668C Display UNIT ...

Page 16: ...totation of the antenna By the time radar echoes have returned to the scanner the amount of scanner rotation after Radar determines the distance to the target by calculating the time difference between the transmission of a radar signal and the reception of the reflected echo It is a known fact that radar waves travel at a nearly constant speed of 162 000 nautical miles per second Therefore the ti...

Page 17: ...ived and displayed at their relative bearings and at their distance from the PPI center With a continuous display of the images of targets the motion of the transmitting ship 1 6 The Radar Display Own ship radar A Bird s eye view of situation B Radar picture of A Own ship in center Targets Heading line Range and bearing of a target relative to own ship are readable on the PPI Figure 1 1 How radar ...

Page 18: ...Shifts your vessel s position to cursor location Brief press Doubles size of area between your vessel and location selected by cursor Omnipad Shifts cursor VRM and EBL select items and options on menu 1 Acquires the target selected with the ominipad 2 Registers selection on menus Sets guard zone area Sets radar range Enables erases EBL1 EBL2 EBL3 EBL4 Outputs target position data Automatically red...

Page 19: ...ay mode Cursor VRM1 A C AUTO Zoom OFFCENTER VRM2 VRM1 range VRM2 range Cursor range Range ring interval Pulselength EBL1 EBL1 bearing EBL2 bearing Cursor bearing Interference rejector North mark Range ring EBL2 Off center Echo Stretch Guard zone Echo trail time Tuning indicator Heading line Heading requires heading data Echo trail elapsed time Guard zone Figure 2 2 Display indications 11 ...

Page 20: ...nd by to reduce power consumption This feature is called the economy mode Power consu mption in the economy mode is 28W When economy mode is no the lamp next to the POWER key lights Navigation data display during stand by If a navigation aid inputs navigation data to this radar navigation data can be displayed during stand by You can turn the navigation data display on off through the menu Figure ...

Page 21: ...terval the number of range rings pulselecgth and pulse repetition rate for optimal detection capability in short to long ranges You can select which ranges and pulselength for 1 mile range to use through the menu The range range ring interval and When navigating in or around crowded harbors select a short range to watch for possible collision situations If you select a lower range while on open wa...

Page 22: ...lect 22 Color setting press ACQ ENTER key open the color setup menu Color setting Background setting Black green Black red Blut white DK blue white White green 2 Echo Color Yellow Green Multi Color Press MENU key to escape 4 Press or key select Background Color or Echo Color use or select color desired and press ACQ ENTER key 5 Press MENU key to close the menu 2 Using the function key The function...

Page 23: ...rol so background noise is 2 9 Adjusting Receiver Sensitivity just visible on the screen Echoes from waves can be troublesome covering the central part of the display with random signals known as sea clutter The higher the waves and the higher the scanner above the water the further the clutter will extend Sea clutter appears on the display as many small echoes which might affect radar performance...

Page 24: ...SEA control adjusted sea clutter suppressed Tip for adjusting the A C SEA A common mistake is to over adjust the circuit so all the clutter is removed As an example set up for maximum STC You will see how the center of the display becomes dark This dark zone can be dangerous targets may be missed especially if the sensitivity is not properly adjusted Always leave a little clutter visible on the di...

Page 25: ... when its function is not required Adjusting A C RAIN When rain clutter masks echoes adjust the A C RAIN Control This control spl its up these unwanted echoes into a speckled pattem making recognition of soild targets easier Automatic adjustments of A C SEA and A C RAIN Push the A C Auto key A C Auto appearstat the bottom left hand corner of the display when the A C AUTO circuit is on You can fine...

Page 26: ...y from the inner edge of the nearest ring By VRM 1 Press the EBL VRM SELECT key to circumscribe a VRM readout at the bottom center Each press of the key selects the readout of EBL1 EBL2 VRM1 or VRM2 in that order 2 Press the EBL VRM CONTROL key enable control of the VRM by the omnipad 3 Operate the omnipad to place the outside edge of the VRM on the inside edge of the target 4 Check the VRM readou...

Page 27: ...M2 in that order 2 Press the EBL VRM CONTROL key to enable control of the omnipad 3 Operate the omnipad to bisect the target with the EBL 4 Check the EBL readout at the bottom left hand corner of the display to find The hearing to the target 5 To anchor the EBL press the EBL VRM CONTROL key To erase the EBL and its readout press and hold down the EBL VRM CONTROL key about two seconds Operate the o...

Page 28: ... the center of the display Target Cursor EBL1 EBL2 EBL1 bearing 40 0 R EBL1 bearing 135 0 R EBL 40 0 R 4 0 NM Cursor Bearing Figure 2 9 How to measure bearing by EBL and cursor 2 15 Using the Offset EBL The offset EBL provides two functions predict collision course of radar target and measure the range and the bearing between two targets Predicting collision course 1 Press the omnipad to place the...

Page 29: ...h EBL1 Check the EBL1 readout to find the bearing between target A and target B 6 Press the EBL VRM SELECT key to choose VRM1 readout Press the omnipad to place the outside edge of VRM1 on the inside edge of target B Check the VRM1 readout to find the range between target A and target B 7 To cancel select EBL OFFSET on the menu and press the ACQ ENTER key 6 0 NM 2 0 EBL1 origin Initial position of...

Page 30: ...nction is set for SHIFT default setting or select SHIFT on the menu OFFCENTER appears at the top right corner of the display when the picture is shifted Cancelling shifted picture Press the F1 A C SEA control again 2 17 Zoom The zoom feature allows you to double the size of the area between your vessel and any location within the current range to take a closer look at an area of interst 1 Select l...

Page 31: ...or Cursor Place cursor Where desired Press ZOOM key to zoom Figure 2 13 Zoom Function Note1 Zoom is cancelled when range or presentation mode is changed Cancelling Zoom Press the F1 A C SEA control again 23 ...

Page 32: ...om 3 to max Figure 3 1 Main menu 2 Press the omnipad to select the item For example select RINGS A message appears at the bottom of the menu window 3 Press the ACQ ENTER key to select setting Each time this key is pressed the message changes For the RINGS menu the message sequence is as shown below Change brill from Off to 1 Change brill from 1 to 2 Change brill from 2 to 3 Change brill from 3 to ...

Page 33: ... the top lefthand corner of the display North up North is at the top of the display and the heading line moves with True motion True motion displays own ship and moving objects in their true motion 3 3 Magnifying long range echoes echo stretch Ship s Ship s heading This mode is useful for determining ship s position and as a navigation monitor on a nautical chart The picture is stabilized against ...

Page 34: ...show the movement of all radar targets relative to your vessel in afterglow vessel in afterglow This function is useful for alerting you to possible collision situations Starting echo trail 1 Press the MENU key to open the menu 2 Select ECHO TRAIL by the omnipad 3 Select ACTIVATE by pressing the ACQ ENTER key Figure 3 4 How the echo trail feature work TRAIL the echo trail time selected on OTHER ME...

Page 35: ...ect OFF deactivate at ECHO TRAIL on the menu Changing trail attributes Trail gradation and trail time can be selected on the OTHERS menu Item In OTHERS menu Description Trail Tone Trails can be shown in single or multiple gradations Multiple paints trails getting thinner with time just like the afterglow on an analog PPI radar Single Multiple Trail Time Trail time can be set for 15 s 30 s 1 min 3 ...

Page 36: ...8 Noise Reject On Off 9 Traim Time 30S 1M 3M 6M 15M 30M 15S 10 Tune Manu Auto 11 Disp Data Nav ARP All Off 12 WPT Mark On Off 13 EBL Ref Ture Ret 14 VRM Unit km sm nm 15 Watchman 5M 10M 20M Off 16 STBY Disp Econo Nav Norm 17 Guard Mode Out In 18 Cursor Posi L L R B 19 Alm sense LV Mid Hig Low 20 Dead Sector On Off 21 Range 1 1 8 1 1 3 15 2 4 8 16 3 5 12 24 36 23 Self Test 24 Installation Setup 2 3...

Page 37: ... right hand corner when the Out alarm is selected Dashed line Guard IN ALARM OUT ALARM no alarm Figure 3 8 In and Out alarm Setting a guard zone Preparation 1 Press the MENU key and the select OTHER MENU and pressing the ACQ ENTER key 2 Select 17 Guard Mode and In alarm on target entering zone or Out alarm on target exiting zone by operating the omnipad 3 Press the ACQ ENTER key 4 Press the MENU k...

Page 38: ...uard zone and guard alarm Press and hold down the GUARD key until the guard zone disappears Notes on the guard alarm The alarm is useful anti collision aid but does not relieve the operator of the responsibility to also keep a visual lookout for possible collision situations When the radar range is less than one half of the guard zone range the guard zone disappears and G IN or G OUT appears in in...

Page 39: ...here is no change the radar goes into stand by WHTCHMAN appears during stand ny If there is change the radar sounds the audible alarm cancels the watc hman function and transmits continuously Turning on watchman 1 Create a guard zone usually 360 degrees with the guard alarm function 2 Press the MENU key 3 Select OTHER MENU 4 Press the ACQ ENTER key 5 Select 15 Watchman 6 Press the omnipad to selec...

Page 40: ...the radar display by a dashed ring To turn navigation data on or off 1 Press the MENU key 2 Select the DISP DATA 3 Press the ACQ ENTER key 4 Press the ACQ ENTER key to select the message for Navigation display 5 Prss the ACQ ENTER key to set 6 Press the MENU key to close the menu Figure 3 11 Typical navigation data display 125NM 0625 sp HU HDG 234 5 TRAIL AUTO 25 38 30M G OUT ZOOM ES1 Waypoint Mar...

Page 41: ... ENTER key MANUAL appears at the top right hand corner when manual tuning is in effect 11 Disp Data Select the down sourse to display 12 WPT Mark Select On to display the waypoint mark 13 EBL Ref Select EBL reference for relative or true 14 VRM Unit Select On to display the waypoint mark 15 Watchman Turn watchman on set rest period or off 16 STBY Disp Select the display on stand by display STBY or...

Page 42: ...n desired 4 Press the ACQ ENTER key 5 Press the MENU key to close the menu Figure 3 12 Function menu SETTING FOR F1 KNOB Sel by omnipad press ENT Press MENU key to escape SHIFT ZOOM EBL OFFSET DISP DATA STBY DISP INT REJECT NOISE REJECT PULSE LENGTH ECHO STRTCH TRAIL ON OFF TRAIL TIME TRAIL TONE TUNE A M GUARD IN OUT ALARM LEVEL DEAD SECTOR WATCH MAN PANEL DIMMER MARK BRILL CHARA CTERS OTHER MENU ...

Page 43: ...g Brilliance of Markers 2 Mark brill on the OTHER menu adjusts the brilliance of markers such as the cursor 3 14 Outputting Target Position Target position data can be output to the navaid in IEC 1162 format Press and hold down the TLL key to output the data This function requires position data and heading signal 35 ...

Page 44: ...iples of the actual range of the target as shown in Figure 4 1 Multiple reflection echoes can be reduced and often removed by decreasing the sensitivity or properly adjusting the A C SEA 4 2 Side lobe Echoes Every time the antenna rotates some radiation escapes on each side of the beamcalled side lobes If a target exists where it can be detected by the side lobes as well as the main lobe the side ...

Page 45: ...ide lobe Sprious target True echo Figure 4 3 Indirect echoes Direct Indirect Heading True True Bridge Indirect Indirect Own Target path Antenna Obstruction Direct Heading Target path path echo echo echo echo Indirect ship echo Iine Iine Indirect path mast funnel etc 37 ...

Page 46: ...obstruction but at the range of the legitimate contact when plotted their movements are usually abnormal and their shapes may indicate they are not direct echoes 4 4 Blind and Shadow Sectors Funnels stacks masts or derricks in the path of antenna may reduce the intensity of the radar beam If the angle subtended at the antenna is more than a few degrees a blind sector may be produced Within the bli...

Page 47: ...e cornea of your eyes Always make sure the radar is set to stand by or is turned off before starting 3 to 6 months 6 months to 1 year Display unit connectors Check for tight connection and corrosion If corroded contact your dealer for replacement Exposed nuts and bolts on antenna unit Radome cover KR 1338C If a crack is found it should be temporarily repaired by using a samll amount of sealing com...

Page 48: ...use 5 3 Troubleshooting Table 5 2 contains simple troubleshooting procedures which you can follow to try to restore normal operation If you cannot restore normal operation do not attempt to check inside any unit of the radar system Any repair work is best left to a qualified technician 5 4 Self Test The self test facility checks the keyboard ROM and RAM for proper operation 1 Press the MENU key 2 ...

Page 49: ...tivity the antenna does not rotate Characters and indications are abnormal the control panel does not light nothing appears on the display or display contrast is poor characters are distorted try adjusting the control panel backlighting on the OTHERS menu battery may have discharged check fuse in power cable try adjusting the brilliance request service the problem may be in antenna unit Request se...

Page 50: ...tional ARP 10 board is mounted 5 To check the keyboard press any key except the omnipad ACQ and power keys except the omnipad ACQ and power keys Its corresponding location on the disp lay lights in black if the key is operating properly 6 Press the ACQ key to check the display circuit The following pattern should appear 7 Press the MENU key to back to the selftest menu 8 To escape from the test Pr...

Page 51: ...s the antenna unit would be a much more serious obstruction you would need It is rarely possible to place the antenna unit where a completely clear view in all direction is available Thus you should determine the angular width and relative bearing of any shadow sectors for their influence on the radar at the first opportunity after fitting The method of determining blind and If you have a radio di...

Page 52: ... Deposits and fumes from a funnel or other exhaust vent can adversely affect the aerial performance and hot gases may distort the radiator portion The antenna unit must not be mounted where the temperature is more than 70 unbroken namely no splicing allowed Mounting KR 1338C Figure 6 1 Typical antenna unit location Unpacking the antenna unit 1 Open the antenna unit packing box carefully 2 Unbolt t...

Page 53: ...pare a platform of 5 to 10 millimeters in thickness for the antenna unit Find the cable entry on the radome base Next position the radome base so the cable entry faces the stern direction This alignment must be as accurate as possible Fasten the radome base to the mounting platform with four each of M10 x 30 hex bolts flat washers and spring washers SHIP S BOW CABLE ENTRY FLAT WASHER SPRING WASHER...

Page 54: ...und for waterproofing Remove the shield cover in the radome Remove the cable clamping plate by unfastening four screws and removing a gasket Connect the wire to the RF unit 1 9 pin connector to J801 2 3 13 pin connector to J611 4 pin connector to J802 Pass the cable through the hole at the bottom of the radome base Secure the cable with the cable clamping plate and gasket Ground the shield and vin...

Page 55: ...ith the transceiver module can be stored in a convenient place until the wiring to the antenna unit is done 3 Place the antenna bousing on the mounting platform and orient it as shown in Figure 6 6 4 Insert four M12 60 hex head bolts with the seal washers from inside the antenna housing to prevent the bolts from contacting the transceiver module Install the seal washer with the larger diameter nex...

Page 56: ...cable near other onboard electrical equipment Also avoid running the cable in parallel with power cables Pass the cable through the hole and apply sealing compound around the hole for waterproofing The procedure for connecting the signal cable to the antenna unit is as following 1 Through a pipe or waterproof cable grand fitted on the wheelhouse top or bulkhead 2 Unfasten four screws at bottom of ...

Page 57: ...Connection in the antenna housing Final preparation 1 Place the antenna housing cover on the housing Loosely fasten the four fixing bolts on the cover Figure 6 10 Fastening the antenna housing cover 2 Apply grease to the two slot pins Using a wooden hammer to prevent damage to paint insert slotted pins into the pinning holes until the pin head is flush with the scanner housing surface Figure 6 11 ...

Page 58: ...h silicone sealant Fasten the radiator to the radiator bracket with the ONWA logo on the radiator facing ship s bow 4 Open the antenna housing cover and fix the stay as shown in Figure 6 13 5 One end of the cable with 15 9 and 7 way plugs has already been connected to CON 0906 inside the scanner housing Mate the 15 and 9 way plugs with jacks J812 and J811 on the transceiver module respectively Con...

Page 59: ...ss to the rear connectors build up inside the cabinet The orientation of the display unit should be so the radar screen is viewed while the operator is facing in the direction of the bow This makes Make sure you allow enough clearance both to get to the connectors behind the unit and to allow you to get your hands in on both sides to loosen or tighten the mounting knobs Make sure you leave at leas...

Page 60: ...83 data format your vessel s position in latitude and longitude the range and bearing to waypoint speed and course may be input to this radar and be seen on the screen Further if your video sounder can output depth in IEC 1162 NMEA 0183 data format depth can be displayed on the radar screen 1 3 3V 2 NMEA1 Input 3 NMEA1 Input 4 GND 5 AIS GPS select Note When NMEA1 Otherwise is used for AIS connecti...

Page 61: ...Input Replace ther fuses to 5A for 24 32VDC operation CAUTION Ground the equipment Ungrounded equipment might emit or receive electromagnetic interference or cause electrical shock CAUTION Fuse Holder NMEA 1 Connector GND GND Upgrade Power NMEA 2 Connector Option Figure 6 14 Display connect 53 ...

Page 62: ...e power connections to the battery are of correct polarity The plugs at the rear of the display unit are tightly fastened The fuse in the power cable is 10A 12V or 5A 24V 32V DC 6 5 Adjustments This section covers adjustment of the radar after installation You will need to adjust tune video amplifier level input enter antenna height adjust tuning level adjust sweep timing adjust main bang suppress...

Page 63: ...ting tune video Do the following to adjust tune and video amplifier level input 1 Press the ST BY TX key to transmit WARNING Before transmitting the radar make sure no one is near the antenna unit to prevent the potential risk of being struck by the rotation antenna and exposure to Therefore radiation hazard 2 On the Installation setup menu select 8 Tune Video Adjustment and press the ACQ ENTER ke...

Page 64: ...g accurate initial positioning of the antenna unit The foll owing adjustment will compensate for this error 1 Identify a suitable target for example ship or buoy at a range between 0 125 to 0 25 nautical miles preferably near the heading mark To lessen error keep ec hoes in the outer half of the picture by changing the range Aiso be sure the zoom and off center functions are off 2 Select 9 Heading...

Page 65: ...rectly the echoes from a straight local object for example a harbor wall or straight pier will not appear with straight edges namely they will be seen as pushed out or pulled in near the picture center The range of objects will also be incorrectly shown 1 Correct 2 Target pushed inward 3 Target pushed outward Figure 6 18 Examples of improper and correct sweep timing 1 2 3 Transmit on the shortest ...

Page 66: ...d press ENTER key Correction 000 Press MENU for inst setup Figure 6 20 MBS Adjustment message 6 Operate the omnipad to suppress main bang Left low right between 0 and 25 7 Press the ACQ ENTER key Setting a blanking area When the antenna is installed at a close distance in front of the wheelhouse the radar should be set not to transmit within that area No echoes appear in the bla nking areas 1 Sele...

Page 67: ...for use with any length of signal cable Therefore no adju stment is required However verify heater voltage by following the procedure below 1 Turn on the radar if it is not already on and set it in stand by 2 Open the antenna housing radome cover Connect a multitester set to 10V DC range 3 Close the antenna housing cover and tighten the fixing bolts Model Check point Rating Adjustment Point KR 133...

Page 68: ... Setup Panel Dimmer Mark Brill HD Mark Characters Trail Tone Single Multi Int Reject Off Pulselength Short Long Noise Reject Off On Trail Time Tone Auto Manu Disp Data Off Nav ARP All WPT Mark Off On EBL Ref Rel True VRM Unit nm km sm Watchman Off STBY DISP Norm Econo Nav Guard Mode In Out Cursor Posi 19 Alm Sense LV Low Mid High Dead Sector Off On Range 36 1016 36 48 1048 36 48 64 1064 1 GPS 2 3 ...

Page 69: ...omatically dynamically and regularly update their position speed course and information such as vessel identity How does AIS function as a radar The AIS radar function does not refer to its own AIS system and its features such as the VHF T R and Letter Machine but by serial interface through NMEA which will be received by the AIS and sent to the radar on a real time displayed on the radar screen H...

Page 70: ...not appear and still continues to ensure real time AIS information Figure 2 AIS menu AIS MENU Select item by omnipad and press ENTER key 1 Display Off On 2 Simulation Off On 3 AIS Ship listing 4 Vector Length 30s 1M 3M 6M 15M 30M 5 History Off 15s 30s 1M 2M 3M 6M 6 CPA Set Off 0 5 1nm 2nm 3nm 5nm 6nm 7 TCPA Set 30s 1M 2M 3M 4M 5M 6M 12M 8 Target Size L M S Auto 9 In out Harbour In Out 10 11 Own Sh...

Page 71: ...e other ships basic information Figure 3 AIS Ship Listing How to determine the target ships detailed information 1 By keyboard There are two methods by which we can view a ships sailing detailed information From the list of AIS information select the direction key and press ACQ ENTER on Figure 3 the detailed data of the current selected ship information shall be displayed ...

Page 72: ...ure 4 and the AIS data shall appear as shown in Figure 5 Note If the display setting of the radar screen is at ALL mode it will briefly display the AIS information as shown in Figure 6 and press ENTER key Figure 4 Selected target display Figure 5 AIS Detailed data frame Figure 6 AIS brief information THGE ...

Page 73: ... voyage This value is just an estimate and it will follow the ships movement However it can help simplify the radar operators intuitive navigation judgement Setting method Enter AIS menu select 4 Vector length and press ACQ ENTER key then use the direction key choose corresponding time and press the ACQ ENTER key Figure 7 Own Ship data COG Course over ground SOG Speed over ground Turning direction...

Page 74: ...g will be uneven If it changes course its plotted course will not be a straight line Below are sample past position displays a Ship turning B Ship turning Straight c Ship reduced d Ship increased speed speed Figure 9 Sample past position displays Past position plot interval Enter AIS menu select 5 History to select plot interval desired Off 15 s 30 s 1 2 3 or 6 min Select OFF to erase all past pos...

Page 75: ...tonnage speed turning performance and other characteristics of own ship Setting the CPA and TCPA ranges Enter AIS menu select 6 CPA Set 7 TCPA Set then press direction key choose the value you want Below are CPA TCPA can be setup value CPA Set Off 0 5 1 2 3 5 6 nm TCPA Set 30 s 1 2 3 4 5 6 12 min AIS symbol size setup AIS symbols default has three different sizes which can be according to actual c...

Page 76: ...ill be loss target alarm function is triggered in this case the target becomes the symbol shown below loss target mark symbol color is red and flash while the radar alarm will sound to remind the operator out to pay attention To manually stop the audible alarm press the SELECT CANCEL key once Figure10 loss target display symbol How to open the loss target alarm function Did not turn this function ...

Page 77: ... the prompt press the ACQ ENTER key AIS symbol colour When the background color is black the echo color is yellow AIS symbol colors are set as follows Figure 11 Black background yellow echo Own ship White triangle CLASS A Blue triangle CLASS B Green triangle BASE STATION Blue square Selected ship Alarm ships Red triangle bold 2 times flash ALL circles Without direction information target Broken sq...

Page 78: ...ost acute apex of the triangle should be aligned with the heading of the target or with its COG if heading information is not available The symbol of the sleeping target may be smaller than that of the activated target All AIS symbols shown with thick line Color is selectable from menu ROT higher than preset ROT Displayed for turning ship Target selected for data display Broken square is overlaid ...

Page 79: ...KR 1338C TYPE KRD 1003 NAME DISPLAY UNIT KR 1668C 276 8 276 310 130 5 27 5 148 74 276 8 276 286 150 65 40 140 6 71 ...

Page 80: ...MODE KRA 1002 NAME SCANNER UNIT ONWA ONWA KR 1338C Effective thread length Flat washer Spring washer Apply silicone sealant Hex bolt Platform 5 10 mm Antenna base plate Packing Radome 72 ...

Page 81: ...A12 185 585 260 635 240 440 240 350 M12 BOLT S W M12 NUT SEAL WASHER PLATFORM F W CW10530X 240 168 140 FIXING HOLES 540 XN8 650 XN12A DIA OF ROTATION CENTER OF ROTSTION CABLE ENTRY 30 45 150 178 185 MOUNTING DIMEENSIONS 73 KR 1338C 1668C INTERCONNECTION MODE KRA 2002 NAME SCANNER UNIT KR 1668C ...

Page 82: ...Y UNIT 4 3 2 1 4 3 2 1 5 6 P1 J612 1 2 3 4 GND IF 5V TUNE KR 1338C ONLY KR 1688 ONLY NJT1668C MIC IF TUNE GND 5V GREEN YELLOW HOT COLD TD802 TD801 HEADING HEADING J805 J803 GND ENGODER 12V S801 NRS 101 BOM ZYW 40 01 A 01 M801 GND MIG Current 7 5V 15V TX HV 1 2 3 4 5 1 2 3 4 5 6 1 2 3 V801 MA1421 or MSF1421 TO ANTENNA HY801 FCX73 TP803 DRAWN MARTIN CHECKED APROVED SCALE MASS Kg Data 2009 07 30 MODE...

Page 83: ... A P L B TX TRIG HD BP VIDEO SIG GND TO EXT ALARM TO SCANNER UNIT P56 P57 P52 P51 P60 5 4 3 2 1 10 9 8 7 6 11 5 4 3 2 1 8 7 6 J1 32V 12V 5V GND GND 12V DC PWR DC ANT SW GND GND GND GND HEADING BEARING TRIG OP VIDEO 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 MOTOR MOTOR 32V 12V 12V 5V GND GND 12V 12V ANT SW GND PWR DC DC TO SLAVE MOTOR MOTOR 12V GND 12V 1 2 1 2 3 4 POWER BOARD MHDR1X15 P1302 J1301...

Page 84: ...1 2 3 4 5 6 7 8 9 P801 P611 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 P613 P701 1 2 3 4 5 6 7 P801 P804 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 12V 12V GND 12V 12V Trigger P L A P L B B W 12V GND 12V TRIG MBS SIG B W MOD 0904 MADULATOR TX HV 300V HEATER 7 6V 15V COLD YELLOW HOT GREEN MG Currerit GND 1 2 3 4 5 6 TP803 J611 J613 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 TUNINF IND MIBS_L R MONI VI...

Page 85: ... 6 7 8 1 2 3 4 5 1 2 3 P60 P56 P57 MAIN 0804 SHIP S MAINS SHIP S MAINS 12 24 32VDC 3 3V GPS IN NMEA OUT1 GND GND NAV HEADING DEPTH DAT A NMEA0183 HEADING DEPTH DATA NMEA0183 SLAVE DISPLAY TO EXT BUZZER 3 3V GYRO IN NMEA OUT2 GND ECHO IN NMEA OUT3 GND GND GND HEADING GND BEARING GND GND TRIG OP VIDEO GND H SYNC VIDEO V SYNC GND 12V GND EXT BUZZER KRC 003 10 15 20 DRAWN MARTIN CHECKED APROVED MODEL ...

Page 86: ...O BLACK BROWN VIDEO SHIFLD RED GRAY P611 2 54mm P611 3 96mm P801 3 96mm 2 54MM 3 96MM 3 96MM 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 1 2 3 4 5 6 7 8 9 WHITE BLUE BLACK PINK WHITE YELLOW WHITE BROWN WHITE GREEN WHITE RED WHITH BLACK BLUE SHELD BROWN VIOLET RED DRAWN MARTIN CHECKED APROVED MODEL KR 1338C 1668C Size Rev DRW NO KRC 004 XX NAME SIGNAL CABLE TYPE SCHEMATIC DIAGRAM A3 2 0 SCALE MASS Kg Dat...

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Onwa KR-1338C, Operator'S Manual

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