JRC JMR-7230-S3 Instruction Manual

Marine radar equipment

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Summary of Contents for JRC JMR-7230-S3

Page 1 Overview Name and Function of Each Unit JMR-7230-S3/S Common Basic Operations JMR-7225-7X3/9X3/6X/9X/6XH Range and Bearing Measurement Methods JMR-7210-6X/6XH JMR-7272-S Basic Operation of the Radar JMR-7282-S/SH Target Tracking and AIS JMR-9230-S3/S True and False Echoes on Display JMR-9225-7X3/9X3/6X/9X/6XH Functions of the ECDIS...
Page 3: Table Of Contents
Contents Function Section 5 Basic Operation of the Radar ............5-1 Overview Flowchart ....................... 5-1 Starting and Shutting Down the Radar .................. 5-3 5.2.1 Powering on and starting ....................5-3 5.2.2 Exiting radar operation ....................5-6 Observation Environment and Image Adjustment ..............5-7 5.3.1 Adjusting screen brightness ..................
Page 4 Restrictions ........................... 6-2 Collision Avoidance Issue (Explanation) ................6-3 6.2.1 Collision Avoidance in Navigation ................. 6-3 6.2.2 Marine Accidents and Collisions ................... 6-3 6.2.3 Basic Concept of Collision Avoidance ................6-4 6.2.4 Relative Vector and True Vector ................... 6-5 6.2.5 Radar and Collision Avoidance ..................
Page 5 6.5.8 Operation Test for Target Tracking ................6-33 6.5.8.1 Test Video ......................6-34 6.5.8.2 [TT Simulator] (Target tracking simulator) ............6-35 6.5.8.3 [Gate Display] ....................... 6-37 6.5.8.4 Status display ....................... 6-39 Setting and Operating AIS....................6-40 6.6.1 Enabling AIS Function ....................6-40 6.6.2 Activating AIS targets (Activate AIS) ................
Page 6 6.14 Displaying the TT/AIS Target List ..................6-76 6.14.1 Displaying TT/AIS List ....................6-76 6.14.1.1 Switching between a standard window and an extended window ....... 6-77 6.14.2 TT List ......................... 6-79 6.14.3 AIS List ........................6-80 6.15 Confirming Own Ship's AIS Information ................6-82 6.16 Displaying the Last Lost AIS Target ..................
Page 7 8.4.1 Enlarging a Selected Area (S-57/C-MAP Only) ............8-12 8.4.2 Enlarging/reducing a chart with the Zoom function ............ 8-14 8.4.2.1 Enlarging/reducing with the [ZOOM IN]/[ZOOM OUT] key on the trackball operation unit (S-57/C-MAP only)................. 8-14 8.4.2.2 Enlarging/reducing with the zoom slider (S-57/C-MAP only) ....... 8-14 8.4.2.3 Enlarging/reducing with the Large/Small buttons (RNC only) ......
Page 8 8.14 Setting a true bearing ......................8-57 8.15 Setting an own ship’s speed ....................8-58 8.15.1 Switching an own ship’s speed sensor ............... 8-58 8.15.2 Entering the ship’s heading/own ship’s speed manually ..........8-59 Section 9 Route Planning ................9-1 Overview of the Route Planning Function ................
Page 9 9.7.3.5 Moving WPT on the context menu ............... 9-47 9.7.3.6 Deleting WPT on the context menu ..............9-48 9.7.3.7 Copying and pasting a route on the context menu ..........9-49 9.7.3.8 Rotating a route on the context menu ..............9-50 9.7.3.9 Moving a route on the context menu ..............
Page 10 11.1.1 Setting a dragging anchor monitoring circle ............... 11-2 11.1.2 Setting a dragging anchor monitoring polygon ............11-3 11.2 Starting and Ending Dragging Anchor Monitoring ............... 11-5 11.2.1 Starting dragging anchor monitoring ................11-5 11.2.2 Ending dragging anchor monitoring ................11-6 11.3 Moving/Editing/Deleting a Dragging Anchor Monitoring Area on the Chart ......
Page 11 13.9 Displaying a Chart Abbreviation List ................. 13-20 13.10 Maintaining a Chart ......................13-21 Section 14 Creating a User Map/ Updating a Chart Manually ....14-1 14.1 Creating/Editing a User Map ....................14-3 14.1.1 Display the "User Map" menu..................14-4 14.1.2 Display the File Operation submenu ................
Page 12 14.3.5 Displaying the object/redisplaying the hidden object ..........14-29 14.4 How to Use the Map Creation Tools (for Manual Update) ..........14-30 14.4.1 Deleting or hiding an object ..................14-30 14.4.2 Selecting an object type .................... 14-31 14.5 Creating an Object ......................14-32 14.5.1 Creating a symbol object (Symbol) ................
Page 13 14.7.3.3 Deleting objects collectively from an object list ..........14-75 14.7.4 Displaying a manual update list (ECDIS screen only) ..........14-75 14.7.4.1 Displaying an object on a chart ................14-75 14.7.4.2 Hiding an object ....................14-76 14.7.4.3 Redisplaying an object ..................14-76 Section 15 Logbook ..................
Page 14 16.2.19 Setting up the Engine Graph ..................16-51 16.2.20 Setting up the graph range of the ROT slide bar ............16-52 Section 17 Setting up Alerts ................. 17-1 17.1 Selecting Setting Items ....................... 17-1 17.1.1 Displaying the "Alert" dialog box ................. 17-1 17.1.2 Selecting a setting item ....................
Page 15 18.12 Setting Parameter Values at Route Plan Creation ............18-23 18.13 Setting Automatic Sailing Parameter Values ..............18-25 18.14 Setting the Temporary Route Setting Values ..............18-28 18.15 Setting Chart Operation ....................18-29 18.16 Setting Logbook ........................ 18-32 18.17 Setting Navigation Equipment ................... 18-35 18.18 Setting Colors and Brightness ..................
Page 16 Contents (14)
Page 17: Basic Operation Of The Radar
Section 5 Basic Operation of the Radar Use the radar as your navigation aid. Final decision on the ship operation must be made by the ship operator himself. If you depend entirely on the radar information for the final decision on the ship operation, such an accident as collision and stranding may occur.
Page 18 Refer to "5.2.1 Powering on and Power ON this system and start the radar. starting". Refer to "5.3 Observation Environment Adjust reception gain, sea clutter and rain/snow and Image Adjustment". clutter so that the observation range as well as the target display become the clearest.
Page 19: Starting And Shutting Down The Radar
Starting and Shutting Down the Radar 5.2.1 Powering on and starting Note • Wait for about 2 seconds before turning on the power again. • Immediately after the radar is installed, at start of the system after it has not been used for a long time, or after the magnetron is replaced, preheat the equipment in the standby state for 20 to 30 minutes before setting it into the transmit state.
Page 20 Click on the [Collision Avoidance (RADAR)] button on Task Menu. The RADAR screen appears. The preheating time is displayed at the center of the screen. Preheating time Section 5 Basic Operation of the Radar...
Page 21 When the magnetron radar antenna is connected, “Preheat” is displayed on the Standby/Send switching button. Wait until preheating is complete. When the preheating time expires, the preheating time display disappears, and the display of the Standby/Transmit switch button changes from "Preheat" to "Standby". Click on the Standby/Transmit switch button.
Page 22: Exiting Radar Operation
5.2.2 Exiting radar operation Click on the Standby/Transmit switch button in Radar system information. Radar transmission stops and the rotation of the radar antenna stops. The display of the Standby/Transmit switch button changes from "Transmit" to "Standby". Memo If observation using the radar is being scheduled within a comparably short period of time, keep this state.
Page 23: Observation Environment And Image Adjustment
Observation Environment and Image Adjustment 5.3.1 Adjusting screen brightness Adjust the screen brightness. For the details of the adjustment, refer to "3.9 Adjusting the Brightness of the Screen and Operation Unit". In consideration of the ambient brightness, adjust the brightness of the display that is high enough to easily observe the radar display but does not glare.
Page 24 Since the image within the previous observation range is displayed by expanding/contracting for the period from immediately after switching of the observation range from the next image updating, do not use this image for navigation. If this image is used for navigation, an accident may occur. Note An observation range under which the own ship display positon and the antenna position exceeds the area 66% of the screen radius cannot be selected.
Page 25: Adjusting Tune
5.3.3 Adjusting tune Normally, use the automatic tune mode. If you use the manual tuning mode, an accident may be caused by fluctuation of transmission and reception. Use the manual tune mode only when best tuning is not possible in the automatic tune mode due to deterioration of magnetron.
Page 26: Adjusting Gain
Using the manual tune mode Click on the tune mode button. [MAN] (manual) is displayed on the tune mode button. Each time this button is clicked on, the display switches between [AUTO] (automatic) and [MAN] (manual). Move the fine tuning slider to the left and right sides. The tuning status is displayed on the tuning bar according to the movement of the fine tuning slider.
Page 27 Drag the [Gain] (reception gain adjustment) slider dial in Radar signal information, turn the trackball, and set up reception gain. [Gain] (reception gain adjustment) slider Moving the slider to the right increases gain. Moving the slider to the left decreases gain. The current reception gain level is indicated by the bar and a numeric value.
Page 28: Rejecting Sea Clutter (Sea)
5.3.5 Rejecting sea clutter (Sea) Never set the sea clutter suppression function before rejecting all the sea clutters at close range. Detection of not only echoes from the wave and so on but also targets such as other ships or dangerous objects may be suppressed.
Page 29 Memo Initial setting value If the optimal setting value was lost, it is recommended to reset to the initial value and tune up again. The initial setting value is indicated as shown in the figure at right. Using the function of automatic sea clutter suppression mode The sea clutter suppression in accordance with the intensity of sea clutter is possible.
Page 30: Rejecting Rain/Snow Clutter
5.3.6 Rejecting rain/snow clutter Never set the rain/snow clutter suppression function too high. Detection of not only echoes from the rain or snow but also images targets such as other ships or dangerous objects may be suppressed. When using the rain/snow clutter suppression function, make sure to choose the most appropriate setting for suppression.
Page 31 Moving the slider to the right decreases the amount of images by rain/snow clutter. Moving the slider to the left increases the amount of images by rain/snow clutter. The current level of rain/snow clutter suppression is indicated by the bar and a numeric value. Current level of rain/snow clutter suppression [Points on adjustments] When the amount of images by rain/snow clutter is decreased, the outlines of targets hidden by images...
Page 32: Adjusting To Optimal Images (Selection Of Observation Scenes)
Canceling automatic rain/snow clutter suppression Click on the Automatic Rain/Snow Clutter Suppression button. [MAN] (manual) is displayed on the automatic rain/snow clutter suppression button. Each time this button is clicked on, the display switches between [AUTO] (automatic) and [MAN] (manual). 5.3.7 Adjusting to optimal images (Selection of observation scenes)
Page 33 Select the observation scene corresponding to the current sea condition Refer to the following table about the definitions of observation scene. Observation Definition Scene Standard Standard Coast Coastal navigation Use this scene to monitor a relatively short range, for example, bays and coasts where many boats and ships are running.
Page 34 Observation Definition Scene Bird Bird Use this scene to detect a flock of sea birds. Long Long distance detection Use this scene to monitor utmost distances in the broad ocean. Buoy Buoy Use this scene to detect small targets such as radio buoys outside of sea clutter. (Targets having low detection probability are displayed.) User1 User 1...
Page 35: General Radar Operation
General Radar Operation 5.4.1 Interference Rejection (IR Function) By setting IR (Interference Rejection) function, Interference by other radars is rejected. Note To observe the radar beacon and the SART signal, IR processing may occasionally suppress these images, so set IR to Off (interference rejection function OFF). Click on the RADAR Signal Processing Setting button in Radar signal information.
Page 36: Changing The Transmitter Pulse Length
5.4.2 Changing the transmitter pulse length Click on the Transmitter Pulse Length switch button in Radar signal information. Transmitter pulse length switch button. Each time this button is clicked on, the transmitter pulse length changes. Example: [MP1] → [MP2] → [LP1] → [LP2] Transmitter Recommended condition Functions and effects...
Page 37: Enhancing Targets
5.4.3 Enhancing targets This function enlarges the display sizes of images to enhance targets. Click on the RADAR Signal Processing Setting button in Radar system information. Radar signal processing setting button The “RADAR Process” dialog box appears. Select the target enhancement level from the list in [Target Enhance]. Recommended use Setting items Functions and effects...
Page 38: Using Video Processing (Echo Process)
5.4.4 Using video processing (Echo Process) This function reduces undesirable noise and enhances targets. Note • When viewing a radar beacon, SART signal, or fast moving target on the radar display, select [Process Off] (video process off). • If video processing mode is set to [CORREL], a high speed target is less-visible . Click on the RADAR Signal Processing Setting button in Radar signal information.
Page 39: Setting The Azimuth Mode
Setting items Effects and recommended use conditions [Process Off] Sets the image processing function to Off. [3 Scan CORREL] Use when the rain/snow clutter images are heavy. [4 Scan CORREL] Use when enhancing the target while suppressing sea clutter images. [5 Scan CORREL] Use when detecting small targets in sea clutter images.
Page 40 The following azimuth modes can be set. Setting items Description Display image [N UP] North UP (North Up) North • The video is displayed so that the zenith of the PPI points to the due north. • Fixed targets do not flicker and are easily identified on the chart, and the true bearing of a target can easily be read out.
Page 41: Setting A Motion Mode
5.4.6 Setting a motion mode By setting a motion mode, the display method of the own ship’s position on the radar screen can be changed. Switching Relative Motion (RM) Mode to True Motion (TM) Mode Click on the Motion Mode combo box in Presentation and mode information. Motion Mode combo box Select the motion mode.
Page 42: Resetting Own Ship To Its Initial Position In [Tm] (True Motion Display) Mode
Setting items Description Display image [TM] True Motion Mode (True Motion display) • In Ground mode, the own ship’s display Fixed on the position moves according to the Speed radar display Over the Ground (SOG) and fixed targets such as land are fixed on the radar screen. Moving •...
Page 43: Setting The Stabilization Mode
5.4.7 Setting the Stabilization Mode Click on the Stabilization Mode button in Presentation and mode information Stabilization Mode combo box Select the Stabilization Mode. [GND]: Use the ship speed relative to ground in the Stabilization Mode. [Sea]: Use the ship speed relative to water in the Stabilization Mode. 5.4.8 Moving own ship’s display position (Off Center)
Page 44: Displaying Other Ship's Trails (Trails)
Place the cursor on the position you want to move and click on it. Own ship’s display position will be moved to the clicked position. Note An own ship display position can be moved within the range in which the own ship display position and the antenna position do not exceed 60% of the screen radius.
Page 45 Land Land Trail Ship Trail Ship Relative Motion Trail True Motion Trail While the true motion trail mode is active, this equipment enables the continuous use of true motion trail even if any of the following operations is performed: • Motion mode change (TM/RM) •...
Page 46: Changing Motion Mode Of Trails
5.4.9.2 Changing motion mode of trails The trail display mode can be switched by using the Trail true/relative switching button of other ship information. Note The available trail motion modes vary depending of the motion mode that is set. True motion display (TM): Only true motion trail is available. Relative motion display (RM): Relative motion trail and true motion trail can be selected.
Page 47: Clearing Trails Data
Memo Saved trails cannot be erased even when the trail lengths are changed the Trail Length switch combo box. Even after the trails display is turned off once, the past trails can be displayed traced back by setting a desired time. The plot of the trail starts when starting the transmission. The system is plotting trails even while the trails display is off.
Page 48: Doubling The Size Of Radar Image
5.4.10 Doubling the size of radar image This function doubles the size of radar video near a specified position. Note If the range is 0.125 NM and the motion mode is in the TM mode, this function is not available. Click on the radar signal process setting button in Radar signal information.
Page 49 Place the offset cursor on a location you want to zoom and click on it. Using the cursor position as the reference, the screen display is enlarged by a magnification of 2 so that the midpoint between the cursor and own ship's position comes at the center of the radar display.
Page 50: Hiding The Heading Line (Hl Off)
5.4.11 Hiding the heading line (HL OFF) Click on the disclosure button on the left toolbar. When the left toolbar is set to expanded display, this operation is not required. The ship’s heading line is hidden while the [HL Off] button is pressed down. When the button is released, the ship’s heading line is redisplayed.
Page 51: Hiding Graphics Information On Radar Display
5.4.12 Hiding graphics information on radar display On the radar screen of this equipment, various types of graphics information such as TT/AIS symbol, user map, and chart information are displayed. When the visibility of the radar screen deteriorates due to excessive amount of graphic information displayed, the visibility of the screen can be improved by temporarily clearing the unnecessary graphic information by using this function.
Page 52: Setting Own Ship Speed
Click on the input box of [GYRO Setting]. Input a master gyro value on the software keyboard. 5.4.14 Setting own ship speed 5.4.14.1 Switching own ship speed device Select the ship speed device from the STW Source combo box in the own ship information.
Page 53 When using 1-axis log, heading speed component can be detected, but • transverse speed component cannot be detected. Then leeway effect (component drifted by wind) cannot be detected. When using 2-axes ground log, its accuracy in shallow waters may be •...
Page 54: Entering The Ship's Heading/Own Ship's Speed Manually
5.4.14.2 Entering the ship’s heading/own ship’s speed manually If any device such as LOG, etc., connected to this equipment malfunctions, it is possible to manually enter own ship’s heading/speed by the method described below to use the target tracking (TT) and true motion display functions.
Page 55: Target Tracking And Ais
Section 6 Target Tracking and AIS This section explains Target Tracking (hereinafter, referred to as target tracking or TT) and Automatic Identification System (hereinafter referred to as AIS). Use the target tracking function as your navigation aid. Final decision on the ship operation must be made by the ship operator himself.
Page 56: Restrictions
Restrictions The acquisition and Target Tracking functions have the following restrictions. Depending on distance and echo size, resolution between adjacent targets during automatic target tracking usually ranges somewhere between 0.03 to 0.05 NM. If multiple targets approach each other, there is a possibility of swapping them or losing one of them. Such swapping or less of targets may also occur if the target being tracked is affected by rain/snow clutter or sea clutter or moves very close to land.
Page 57: Collision Avoidance Issue (Explanation)
Collision Avoidance Issue (Explanation) 6.2.1 Collision Avoidance in Navigation Marine collision avoidance in navigation is one of the problems that have been recognized from of old. This section contains a brief statement about the position of collision avoidance in navigation. The navigation pattern of all mobile craft constitutes a system with some closed loops regardless of the media through which the mobile craft travels, whether air, water, the boundary between air and water, or space.
Page 58: Basic Concept Of Collision Avoidance
6.2.3 Basic Concept of Collision Avoidance There are two aspects in collision avoidance: collision prediction and avoidance. Putting it in extreme terms, collision prediction is to predict that two or more vessels will happen to occupy the same point at the same time, while collision avoidance is to maneuver vessels not to occupy the same point at the same time.
Page 59: Relative Vector And True Vector
6.2.4 Relative Vector and True Vector From two points of view, collision prediction and avoidance, it is necessary to obtain the relative vector of other ship for prediction and the true vector of other ship for collision avoidance in order to realize other ship's aspect.
Page 60: Displaying Symbols
Displaying Symbols This section describes the symbols that are used for target tracking and AIS. 6.3.1 Displaying/hiding target tracking symbols/AIS target symbols In the display setting at the time of shipment from the factory, the display of target tracking symbols and of the AIS target symbols is enabled.
Page 61: Types And Definitions Of Ais Target Symbols
6.3.3 Types and Definitions of AIS Target Symbols Symbol Definition Remarks This symbol is displayed when received data is Sleeping target valid. The direction of the triangle's vertex indicates the target's heading or course. The heading direction is displayed with a solid line, and the course vector is displayed with a dotted line.
Page 62 Symbol Definition Remarks Real AIS AtoN target Displayed target No./AtoN name (xxx) nearby the symbol. (On position) X X X Real AIS AtoN target The symbol and target No./AtoN name (xxx) nearby the symbol are indicated in red. (Off position) X X X Real AIS AtoN target When the numeric data is displayed, the target...
Page 63 Symbol Definition Remarks AIS coastal base Displayed by the same color as AIS symbol. station Numerical display When the numeric data is displayed, the target AIS coastal base symbol is enclosed in a square. station The alarm sounds. The alarm message (Lost) turns orange and Lost AIS coastal blinks.
Page 64: About Ais Aton (Aids To Navigation)
6.3.4 About AIS AtoN (Aids to Navigation) AIS AtoN is a system that displaying aid to navigation like a lighthouse, light buoy or unreal aid to navigation on the display unit on ships using AIS receiver. There are following two kinds of AIS AtoN. AIS AtoN type Function Operation example...
Page 65: Switching Between Ground Vector And Water Vector
6.3.7 Switching between Ground Vector and Water Vector The vector of an AIS target is to be displayed with a vector over ground or over water by switching the stabilization mode. The type of the currently displayed vector can be confirmed by viewing the setting of the stable mode.
Page 66: Preparation
Preparation 6.4.1 Setting the Cursor Mode to AUTO Mode If the cursor mode is set to the AUTO mode, various TT/AIS functions can be executed quickly. Click on the [AUTO] (cursor mode selection) button on the left toolbar. The cursor mode changes to the AUTO mode. The [AUTO] mode performs operation in accordance with the object at the cursor position when clicked.
Page 67 True vector mode In the true vector mode, the directions of vectors indicate the true courses of targets and the Vector Lengths indicate the values which are proportional to their speeds. In the true vector mode, the movements of other ships around own ship can be accurately and easily monitored.
Page 68: Setting Vector Mode
6.4.2.2 Setting vector mode Click on the trail true/relative selector button in the other ship information window. Trail true/relative selector button Each click switches track display mode between [T] and [R]. 6.4.2.3 Vector Length (Vector Time) The Vector Length of a target is proportional to its speed, and the vector time can be switched in a range of 1 to 120 minutes.
Page 69: Setting The Vector Length
6.4.2.4 Setting the Vector Length The Vector Length is set in min in the range from 1 min to 120 min. Click on the Vector Length input box in the other ship information window. Vector Length input box Enter the Vector Length. 6.4.3 Setting collision decision criteria Collision decision criteria are set based on CPA and TCPA.
Page 70: Setting Tcpa Limit
6.4.3.2 Setting TCPA limit Click on the TCPA limit value input box in the other ship information window. Set the TCPA limit in the unit of 1 min within the range from 1 min to 99 min. TCPA limit value input box Enter the TCPA limit.
Page 71: Showing The Cpa Ring (Radar Only)
6.4.4 Showing the CPA ring (RADAR only) The CPA ring is rendered as a red circle with the own ship centered and the CPA limit set distance used as the radius. Click on the [Menu] button on the left toolbar. The menu is displayed.
Page 72: Setting And Operating Target Tracking
Setting and Operating Target Tracking The Target Tracking function automatically tracks the acquired targets and records and displays the course and speed of the targets as vector. Alerts can also be output based on the set collision decision criteria (CPA and TCPA). Note At power off and during preparation for transmission, tracking data records are deleted.
Page 73: Acq Manual (Manual Acquisition) Mode
Check [Use AZ1] (automatic acquisition zone 1) or [Use AZ2] (automatic acquisition zone 2). Automatic acquisition/activation zone (AZ) includes AZ1 and AZ2. To enable AZ1, check [Use AZ1]. To enable AZ2, check [Use AZ2]. Memo For the details of "New Target Alarm" dialog box, refer to "17.3 New Target Alarm Generation Conditions".
Page 74: Using Manual Acquisition And Auto Acquisition Together
Target manually acquired. The initial acquisition symbol is displayed. Target that has passed for 1 min. The acquisition symbol and vector are displayed. Memo If only the manual acquisition mode will be used without using auto acquisition/activation together, disable the AZ. 6.5.1.3 Using manual acquisition and auto acquisition together By using manual acquisition with AZ enabled, auto acquisition and manual acquisition can be used together.
Page 75: Using "New Target Warning" Dialog Box In The [Alert] Menu
Auto acquisition/activation zone (AZ) is set up using the following three methods. (1) Use the "New Target Warning" dialog in the [Alert] menu. (2) Use the cursor. (3) Use the EBL/VRM dial. 6.5.2.1 Using "New Target Warning" dialog box in the [Alert] menu Click on the [Menu] button on the left toolbar.
Page 76: Using The Cursor
6.5.2.2 Using the cursor Click on the [Menu] button on the left toolbar. The menu is displayed. Click [Alert] - [New Target Alarm] on the menu. The "New Target Alarm" dialog is displayed. Select AZ ([Use AZ1] or [Use AZ2]) to be set. Click at the start angle position.
Page 77: Using The Ebl/Vrm Dial For The Setting
6.5.2.3 Using the EBL/VRM dial for the setting Click on the [Menu] button on the left toolbar. The menu is displayed. Click [Alert] - [New Target Alarm] on the menu. The "New Target Alarm" dialog is displayed. Select AZ ([Use AZ1] or [Use AZ2]) to be set. Click on the [Make AZ1] button or [Make AZ2] button.
Page 78: Tracked Target Information Display
Turn the VRM dial to set [End Distance]. Eng angle End distance Press the EBL dial. 6.5.3 Tracked target information display Note When a target or own ship changes its course, or when a new target is acquired, its vector may not reach a given level of accuracy until 3 minutes or more has passed after such course change or target acquisition.
Page 79: Erasing Unwanted Tracked Targets
The symbol display is changed to " ". The target data will remain on the radar display until the target is lost and its vector disappears, or until another target is designated. If a target with the mark " " is designated, only its true bearing and range appear until its vector appears.
Page 80: Displaying Target Id No
To erase multiple targets Place the cursor on the tracked target to be cancelled and then right-click. The context menu is displayed. Click on the [Cancel TT mode] on the Context menu. The cursor changes to the selection cursor. Place the cursor on another target to be cancelled and then click on. Repeat the operation in step 3.
Page 81 Select the method for displaying ID No. from the [TT Target ID] list. [TT Target ID] [TT Target ID] ECDIS screen RADAR screen [On]: Displays target ID numbers. [Off]: Hides target ID numbers. [TT Track]: Displays ID numbers of only targets set for track of other ships. [Ship's Name]: When the ship’s name has been input in the “TT Target INFO”...
Page 82: Editing Tracked Target Properties
6.5.6 Editing tracked target properties The tracked target property such as tracked target ID name can be arbitrarily edited for individual tracked targets acquired. The "TT Target INFO" dialog is used for editing. Tracked target ID appears. Tracked target ID name is set. For the details, refer to "6.5.6.1 Adding Tracked Target ID Name".
Page 83 Click on the [Name] input box or  The input method varies with the selected item. Input box Enter a new name. When selected, the ship name ([Name]) entry window opens. Enter a ship name of up to 15 characters. The names registered as templates are displayed in a list.
Page 84: Setting Track Color Of Tracked Target
6.5.6.2 Setting track color of tracked target The track color of tracked target is set. Right-click on the cursor at the tracked target. Click on the [Property] on the context menu. The "TT Target INFO" dialog box appears. Select track color from the [Track Color] list. The selection items are as follows.
Page 85: Setting Target For Which Ground Is Fixed To A Reference Target
6.5.7 Setting target for which ground is fixed to a reference target By tracking the target for which ground is fixed and setting it to a reference target, the speed of the own ship can be obtained and displayed. Note •...
Page 86 Click on [Property] in the context menu. The “TT Target INFO” dialog is opened. [Reference Target] check box To set the target to a reference target, check [Reference Target]. To not set the target to a reference target, uncheck [Reference Target]. Select [TGT] from the COG/SOG source combo box in the own ship information at the top right corner of the screen.
Page 87: Operation Test For Target Tracking
6.5.8 Operation Test for Target Tracking Simulation is a function for determining if the target tracking function is working correctly or not. Accordingly, this function should be used only to check for the target tracking function operation. In particular, if this mode is used during navigation, a pseudo target will appear on the radar screen and cannot be easily identified from the real target.
Page 88: Test Video
6.5.8.1 Test Video Test Video is used to check whether the video signals under target acquisition and tracking are input to and processed in the target detection circuit normally. Normally, it is sufficient to just check that the VDIN of the Test Video is displayed. Note Test Video may not be displayed for a target which is not yet acquired or tracked.
Page 89: Tt Simulator] (Target Tracking Simulator)
6.5.8.2 [TT Simulator] (Target tracking simulator) Pseudo-targets are generated in certain known positions to check whether the target tracking units are operating normally. Since the pseudo-targets move depending on known parameters, the values for these pseudo-targets can be compared with the known value if the pseudo-targets are acquired and tracked, and displayed.
Page 90 List of target tracking simulator/scenario Motion Scenario Target No. Moving start point (true motion) Speed [kn] Course [ Range [NM] Bearing [ Scenario1 28.3 22.4 1.12 15.3 9.25 Scenario2 Scenario3 Scenario4 2.02 7.01 Scenario5 4.47 6.71 7.07 14.4 Scenario6 Note •...
Page 91: Gate Display]
6.5.8.3 [Gate Display] The gate displays an area monitoring a target using the TT function. This equipment allows the gate size to change automatically according to target range and size. The gate size can be checked using the following function. Click on the [Menu] button on the left toolbar.
Page 92 Click on the target of tracking whose numerical value is to be displayed. Numeric data for the specified target is displayed in the information monitoring window. The numeric value for the target is displayed, and the gate is displayed in green around the target tracking symbol.
Page 93: Status Display
6.5.8.4 Status display The status of the TT function is displayed. Click on the [Menu] button on the left toolbar. The menu is displayed. Click on the [Settings] - [TT/AIS] - [TT Test] on the menu. The "TT Test" (Test for Target Tracking) dialog is displayed. Check the display of [Status].
Page 94: Setting And Operating Ais
Setting and Operating AIS 6.6.1 Enabling AIS Function Note • When the AIS function is set to Off, the AIS display function is turned off and AIS symbols are no longer displayed. • Once AIS function is set to Off, even If a dangerous target exists, the function is not automatically switched to On.
Page 95: Automatic Activation
6.6.2.2 Automatic activation Activate an AIS target in automatic mode to display the vector and heading line. When the automatic activation function is used, AIS targets are automatically activated when they go into the automatic activation zone. The automatic activation zone is identical to the automatic acquisition zone (AZ) used for target tracking.
Page 96: Displaying Ais Information
6.6.4 Displaying AIS information Set the cursor mode to the AUTO mode. Place the cursor on the AIS target to display the activated AIS target information and then click on. The information of the selected AIS target is displayed. Note When the numeric data of a target is displayed but the mark "...
Page 97 Canceling AIS target information display Set the cursor mode to the AUTO mode. Move the cursor to and click on the activated AIS target whose AIS target information is to be cancelled. The information display of the selected AIS target is canceled. Details on AIS target information Two AIS target information display modes are available, a standard mode, and an extended mode, and the items that are displayed vary depending on the mode.
Page 98 [Normal AIS target] Item Explanation AIS ID ID No. of AIS target Name Ship name of AIS target Call Sign Call sign of AIS target MMSI Maritime Mobile Service Identity COG or CTW COG: Course Over the Ground CTW: Course Through Water * In ground mode, COG is displayed.
Page 99 Item Explanation Rate of turn * In standard mode, this item is not displayed. * If the ROT column is blank, it indicates that ±127 is received. At this time, only turning direction indicated on the turn indicator is reliable. The turn indicator is displayed as a straight line normal to the heading direction on the AIS symbol.
Page 100 [AIS SARTTarget] There is neither the Call Sign nor Destination item. The display of some items of Navigation Status is different. Otherwise, the display contents are the same as those of usual AIS target. Navigation Status Display 0 ~ 13: Same display as for the usual ship 14: AIS-SART ACTIVE(14) 15: AIS-SART TEST(15) Memo...
Page 101 [AIS AtoN Target] Item Description AIS ID AIS target ID Name Ship name of AIS target MMSI Maritime Mobile Service Identity code True bearing Range Range POSN Latitude/longitude >10m or <10m >10m：Position fixing accuracy low <10m：Position fixing accuracy high Type Displays the AtoN type.
Page 102 Type Display 0: Not Available 1: Reference point 2: RACON 3: Fixed structure off shore 4: Spare 5: Light,without sectors 6: Light,with sectors 7: Leading Light Front 8: Leading Light Rear 9: Beacon,Cardinal N 10: Beacon,Cardinal E 11: Beacon,Cardinal S 12: Beacon,Cardinal W 13: Beacon,Port hand 14: Beacon,Starboard hand...
Page 103 EPSF Display 0: Undefined 1: GPS 2: GLONASS 3: combined GPS/GLONASS 4: LORAN-C 5: Chayka 6: INS 7: surveyed 8: Galileo 15: internal GNSS 9-14: not used 6-49 Section 6 Target Tracking and AIS...
Page 104: Displaying Target Id No
6.6.5 Displaying Target ID No. When an AIS target is activated, a target ID number is displayed next to the AIS target symbol. A target ID number 1 to 1000 is assigned to each target in the order of receiving targets by MFD. Once a target ID number is assigned, it identifies the AIS target until the AIS target is lost.
Page 105: Checking And Setting Ais Target Property
6.6.6 Checking and setting AIS target property The AIS target property such as ID name can be checked for individual acquired AIS targets. The track color of AIS target can also be set. The "AIS Target INFO" dialog is used for editing. AIS target ID appears.
Page 106: Conditions For Deciding Ais Target To Be Lost
Select the track color from the [Track No.] combo box. The selection items are as follows. Off, No.1-Color, No.2-Color, No.3-Color, No.4-Color, No.5-Color, No.6-Color, No.7-Color, No.8-Color, No.9-Color, No.10-Color, No.11 to 20-Color * In "Color," the track color name set by clicking [View] - [Options] - [Target Track] - [Plot] is displayed.
Page 107: Alert Display
Note • When a dangerous target ship is lost, a lost alarm is issued and the symbol changes to a lost symbol. The system calculates the current position from the last-received data and continues displaying the symbol for eternity. • When the [AIS] button in the target ship information window is turned off, the symbol is canceled.
Page 108: Danger Target Alarm (Cpa/Tcpa)
An alert is displayed in the alert notification area (upper right of the screen). Alert notification area 6.7.1 Danger target alarm (CPA/TCPA) Since these alarms may include some errors depending on the target tracking conditions, the navigation officer himself should make the final decision for ship operations such as collision avoidance.
Page 109: Alarm For New Target Acquired In Automatic Acquisition Guard Zone (New Target)
The types of target and alarm are shown below. Dangerous Target Alarm Symbol on Alert Status Alarm sound Conditions display characters • CPA > CPA Limit Tracked • 0 > TCPA target • TCPA > TCPA Limit (Off) (Off) Activated The symbol is displayed AIS target when one or more of the...
Page 110: Lost Target Notification (Lost)
Alarm for New Target Acquired in Automatic Acquisition Guard Zone Symbol on Alert Status Alarm sound Conditions display characters New target in The alarm is issued when a Beep sound (pipi) automatic new target is acquired in the Alarm acquisition Target automatic acquisition guard acknowledgeable...
Page 111: Target Tracking Function Alarm (Tt Data)
6.7.4 Target Tracking function alarm (TT Data) If some failure occurs in input signals or the processor circuits, an alarm will be issued. If an alarm is issued in the Target Tracking function, [TT(Data)] is displayed in the alarm indication and nothing is displayed in the indication of the target tracking information.
Page 112: Track Function
Track Function 6.8.1 Setting the Past position Select the track display interval time from the past position interval selector combo box for other ship information at the upper right of PPI. The past position is set. [Off] : Tracks are not displayed. [Numeric] : Tracks are displayed at intervals of the specified value.
Page 113: Setting Track Color
6.8.2.1 Setting track color For the details on how to set the track color of tracked target, refer to "6.5.6.2 Setting track color of tracked target" For the details on how to set the track color of AIS target, refer to "6.6.6.1 Setting track color of AIS target"...
Page 114: Setting Up The Display Interval Of Other Ship's Track
6.8.2.5 Setting up the display interval of other ship’s track A display interval of other ship’s track can be set. For the details, refer to "16.2.8 Setting up the Display of Other Ship's Track". Note This function is not available when the Target Track Function is turned off. 6.8.2.6 Clearing other ship's track The other ship's track can be cleared by setting a color or a track number.
Page 115: Entering Own Ship's Ais Voyage Data
Entering Own Ship's AIS Voyage Data Set the own ship's AIS voyage data. Click on the [Menu] button on the left toolbar. The menu is displayed. Click on [TT/AIS] - [AIS Voyage Data] on the menu. The "AIS Voyage Data" dialog box appears. In the "AIS Voyage Data"...
Page 116: Editing And Sending Ais Messages
6.10 Editing and Sending AIS Messages AIS messages can be edited and sent. Click on the [Menu] button on the left toolbar. The menu is displayed. Click on [TT/AIS] - [Edit and Send AIS Message] on the menu. The "Edit and Send AIS Message" dialog box appears. Message input area Specify whether a message will be sent by specifying an MMSI code or distributing a broadcast message.
Page 117 Note The maximum number of characters that can be input changes depending on the transmission method and the message type. • Sending a message by specifying the MMSI code - Safety message: Up to 156 characters - Routine message: Up to 151 characters •...
Page 118 The following dialog box appears when the transmission of a message completes. Click on the [OK] button to close the dialog box. To save an MMSI code and a typed message in the case of MMSI transmission, click on the [Save] button. Click on the [x] button to close the dialog box.
Page 119: Ais Message Tray
6.11 AIS Message Tray The received, sent and saved AIS messages are displayed in AIS Message Tray in a list form. Memo The information reference window such as AIS message tray can be switched to standard window display or extended window display. In this example, extended window display is used.
Page 120 Message list Up to 50 most recent messages are displayed in the message list, from the newest date first. When the 51st message is registered, the message having the oldest date will automatically be deleted. By clicking any item of the title columns, messages can be sorted in ascending or descending order. When a message is clicked in the message list, the detailed information of that message will be displayed in the right area of the list.
Page 121: Switching Message Display
6.11.2 Switching message display To display transmitted messages: Click on the [TX Tray] (Transmitted Tray) button. To display saved messages: Click on the [Saved Tray] button. To display received messages: Click on the [RX Tray] (Received Tray) button. Unread messages are displayed in boldface. To filter messages by specifying the transmission method: To display only messages sent/received by specifying an MMSI code: Click on the [Addressed] (address specification)
Page 122: Sending A Message In The Message Tray After Editing
6.11.3 Sending a message in the message tray after editing Click the message to copy in the message list. Click on the [Edit] or [Select] button. When the AIS Message Tray is displayed by opening the AIS Message Tray submenu: Click the [Edit] button.
Page 123: Highlighting Tt/Ais Symbols
6.12 Highlighting TT/AIS Symbols TT/AIS symbols can be searched by specifying criteria and highlight them. Click on the [Menu] button on the left toolbar. The menu is displayed. Click on [TT/AIS] - [Highlighting] on the menu. The "Highlighting" dialog box appears. MMSI MID Code input Registry of...
Page 124 Of the checked search items, specify the search criteria for highlighting. Transit direction: Select the transit direction from the combo box. Sailing North Sailing North East Sailing East Sailing South East Sailing South Sailing South West Sailing West Sailing North West Same way Same way Opposite way...
Page 125: Trial Maneuvering
6.13 Trial Maneuvering Note Trial maneuvering is to simulate own ship's course and speed in the conditions that the course and speed of a target ship are unchanged as they are. The situation is different from any actual ship maneuvering, so set values with large margins to CPA Limit and TCPA Limit. 6.13.1 Outline of Trial Maneuvering The trial maneuvering is the function of simulating own ship's course and speed for collision avoidance when a dangerous target appears.
Page 126 Trial maneuvering in the true vector mode If the own ship's vector mode is the true vector mode, the own ship's vector is calculated according to the own ship's trial speed and trial course as well as the own ship's dynamic characteristic, and the result is displayed as the own ship's expected course.
Page 127 Trial maneuvering in the relative vector mode If the own ship's vector mode is the relative vector mode, an expected relative course of the target is displayed in relation to the own ship's expected course when in the true vector mode. The following figures show an example of a dangerous target changing to a safe target.
Page 128: Performing A Trial Maneuver
6.13.2 Performing a trial maneuver Click on the [Menu] button on the left toolbar. The menu is displayed. Click on [TT/AIS] - [Trial Maneuver] on the menu. The "Trial Maneuver" dialog box appears. Time countdown display Select the [Trial Function] checkbox. The trial function is turned on.
Page 129 Vector Time is valid only when Trial Function is set to On. If it is Off, the vector time before trial maneuvering is displayed. Time until the start of trial maneuvering is counted down directly after the input. The acceleration and deceleration are influenced depending on the relationship between the current speed and the input speed for trial maneuvering.
Page 130 6.14 Displaying the TT/AIS Target List The information of targets being monitored with the TT and AIS functions can be displayed in a list on the information monitoring window. 6.14.1 Displaying TT/AIS List Take the following steps to display the TT list and AIS list. Click on the [Menu] button on the left toolbar.
Page 131 6.14.1.1 Switching between a standard window and an extended window The TT/AIS list can be switched to a standard window or an extended window. To switch to an extended window, click on the List extension button. To switch to a standard window, click on the List Standard button. List extension List button...
Page 132 [Example of standard window] Scroll bar By dragging the scroll bar, the overlapped section can be displayed. Memo A standard window is displayed at the initial display. When the RADAR transmission status is Transmit in RADAR mode, the extended window cannot be displayed.
Page 133 6.14.2 TT List Display Example Item Description ID No. of tracked target Closest approach distance TCPA Time up to closest approach distance Bow crossing distance Bow crossing time COG or CTW COG: Course Over the Ground CTW: Course Through Water *In ground mode, COG is displayed.
Page 134 6.14.3 AIS List When [CTW/STW/Name/Call Sign/MMSI] is clicked, CTW, STW, Name, Call Sign, and MMSI are displayed in the rows of list. When [BCR/BCT/BRG/RNG/HDG/POSN/Status] is clicked, BCR, BCT, Bearing, Range, Heading, Lat, Lon, and Status are displayed in the row of list. Display Example Item Description...
Page 135 Item Description Longitude Status Status Sleeping: Sleeping in progress Activated: Activation in progress Lost: Lost status Danger: Dangerous ship [Show AIS Detail] When one item is selected from the list and this button is clicked, AIS detail button information is displayed in the information monitoring window. For the details, refer to "2.3.1.4 AIS Detail INFO".
Page 136 6.15 Confirming Own Ship's AIS Information Take the following steps to display own ship's AIS information. Click on the [Menu] button on the left toolbar. The menu is displayed. Click on [TT/AIS] - [Own Ship AIS Data] on the menu. The "Information Reference"...
Page 137 6.16 Displaying the Last Lost AIS Target Click on the [Menu] button on the left toolbar. The menu is displayed. Click on [TT/AIS] - [Last Lost AIS Data] on the menu. The "Information Reference" (information monitoring window) is displayed. Click on the [Last Lost AIS Target] button. The last lost information about AIS target is displayed in the information monitoring window.
Page 138 6-84 Section 6 Target Tracking and AIS...

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