JRC RADAR Instruction Manual PDF
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This document is an instruction manual for a radar system, detailing the names and functions of control panel keys and software buttons. It includes examples of screen displays and descriptions of various functionalities.
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ᾙᾜᾐὼᾈᾀᾂᾂὼᾢᾐ 㹑㸫㹀㸿㹌㹂 㹐㸿㹂㸿㹐 㹈㹋㸿㸫㸷㸯㸱㸱㸫㹑㸿 1 SECTION 2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS AND FUNCTIONS OF...
ᾙᾜᾐὼᾈᾀᾂᾂὼᾢᾐ 㹑㸫㹀㸿㹌㹂 㹐㸿㹂㸿㹐 㹈㹋㸿㸫㸷㸯㸱㸱㸫㹑㸿 1 SECTION 2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS AND FUNCTIONS OF SOFTWARE BUTTONS NAMES AND FUNCTIONS OF CONTROL PANEL KEYS AND FUNCTIONS OF SOFTWARE BUTTONS 2.1 NAMES OF DISPLAY.............................................................................2-1 2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS..................2-11 2.3 FUNCTIONS OF SOFTWARE BUTTONS...........................................2-16 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.1 NAMES OF DISPLAY 2.1 NAMES OF DISPLAY 2 Example of screen display In this example, the screen is divided into a number of areas and the names in each area are indicated. Upper left Upper right of the display PPI of the display Own ship's information Target tracking (TT) / AIS information Digital information Menu Brilliance / Display information Alarm Lower left Lower right of the display of the display 2- 1 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.1 NAMES OF DISPLAY PPI Automatic acquisition / activation zone Association target Own ship's symbol Ship's heading marker Past position Ship's heading line AIS target number Cursor mark AIS target symbol Tracked target vector Tracked target AIS target vector number Radar trails Tracked target symbol Parallel index lines VRM2 Other ship's track EBL2 VRM1 EBL1 CPA ring 2- 2 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.1 NAMES OF DISPLAY Upper left of the display Range scale Tuning indication Range rings display On / Off Range rings interval Transmission pulse length Motion mode true / relative Radar trail true / relative 2 Stability mode Off center On / Off Azimuth display mode Transmission / standby X / S band Interswitch connection status About ground and sea stabilization Speed sensor source is MAN , LOG , 2AXW If Set/Drift Setting menu is on :GND (Ground stabilization) If Set/Drift Setting menu is off :Sea (Sea stabilization) Speed sensor source is GPS , 2AXG :GND (Ground stabilization) Lower left of the display Double zoom On / Off Interference rejection (IR) mode Radar video processing (PROC) Target enhance (ENH) mode mode Sea clutter suppression (Sea) Function (FUNC) mode mode Gain dial position Rain / snow clutter suppression (Rain) mode Sea clutter uppression (Sea) dial position Tune mode Rain / snow clutter suppression (Rain) Tune dial position dial position 2- 3 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.1 NAMES OF DISPLAY Upper right of the display Cursor bearing Cursor bearing Cursor mode numeric value indication Cursor latitude true / relative Cursor range Cursor longitude EBL1 numeric value indication EBL1 true / relative starting point mode EBL2 EBL1 bearing starting point mode Parallel index line VRM1 range starting point mode EBL2 numeric value indication Consistent Common true / relative Reference Point (CCRP) EBL2 bearing VRM2 range Lower right of the display Own ship's track interval Mark color Own ship's track interval unit Own ship's track color Map display Map position correction On / Off indication Graphic display CPA ring display On / Off On / Off Ship's heading line On / Off Own ship's information Operation status Ship's heading bearing Heading device Own ship's speed Speed sensor Own ship's course over ground Time display mode Own ship's speed over ground Positioning system (example: GPS, DGPS ) Date and time Geodetic positioning system CCRP latitude CCRP longitude 2- 4 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.1 NAMES OF DISPLAY Target tracking (TT) / AIS information Target tracking (TT) / Target vector true / relative Target vector length EPA / AIS 2 Past position display TCPA limit interval CPA limit Past position display interval unit Past position true / relative AIS On / Off Association On / Off AIS filter mode Tracked target symbol display On / Off Radar trails remaining time AIS target symbol display On / Off Radar trails true / relative Radar trails display time Numeric information: AIS target information AIS target number Simple display item Ship's name Unread message Call sign MMSI Course CPA Speed TCPA Bearing Ship's heading bearing Rate of turn Range Latitude Latitude / longitude error Longitude Navigation status Destination 2- 5 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.1 NAMES OF DISPLAY About time display mode UTC : Universal Time Coordinate UTC(S) : UTC (System Time) LMT : Local Mean Time LMT (S) : LMT (System Time) Numeric information: Tracked target information Tracked target number Bearing True course Range True speed CPA BCR TCPA BCT No information is displayed if digital information value is not displayed Numeric information: Enhancement of cursor position numeric value indication Cursor bearing numeric Cursor bearing value indication true / relative Cursor range Cursor latitude Cursor longitude 2- 6 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.1 NAMES OF DISPLAY Numeric information: Enhancement of EBL / VRM numeric value display EBL bearing EBL bearing numeric value indication true / relative VRM range 2 Numeric information: Navigation information Depth Current direction Water temperature Current speed Wind direction Wind direction / speed Wind speed numeric value indication true / relative Destination bearing Destination distance Remaining time before arriving destination Graph information: Depth indication Depth Depth range Depth graph Time range 2- 7 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.1 NAMES OF DISPLAY Graph information: Water temperature indication Water temperature Water temperature range Water temperature graph Time range Graph information: Wind direction / speed Wind direction / speed true / relative Wind direction Wind speed Graph information: Course bar Auto pilot course Ship's heading bearing Rudder Rate of turn 2- 8 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.1 NAMES OF DISPLAY Numeric information: Marker Marker bearing Marker latitude Marker range Marker longitude Arrival time 2 Menu Main menu Digital information Parallel index line menu Automatic acquisition / Target Tracking (TT) menu activation zone (AZ) menu Own Track menu User map menu AIS menu Route menu Brilliance Main menu Digital information Parallel index line menu Automatic acquisition / Target Tracking (TT) menu activation zone (AZ) menu Own Track menu User map menu AIS menu Route menu Display information Panel lighting brilliance Day / night mode Radar video brilliance Tracked target / AIS target symbol brilliance 2- 9 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.1 NAMES OF DISPLAY Alarm Alarm indication (The system alarm indicated in red. Other information indicated in blue or yellow.) 2- 10 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS 2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS 2 30 28 29 RANGE VRM2 14 9 15 VRM1 13 GAIN 8 23 CANCEL OPTION DATA 27 ACQ OFF 19 2 SEA 7 22 MANUAL OPTION ACQ 18 26 OFF HL 1 RAIN AIS/AR USER DATA 6 TGT 25 17 PA 21 TUNE PANEL NIGHT VECT DAY 5 16 24 T/R 20 ALARM PWR FAIL ACK 4 PWR ACK 2 EBL2 11 12 POWER STBY EBL1 10 TX 1 3 The name of each button is described from the following page. See below. 2- 11 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS 1 [POWER] (Power supply) switch The lamp is lit and the equipment is activated. If this switch is pressed while the equipment is running, the power of the equipment is shut down. → 3.1.1 on page 3-2 2 [PWR ACK] (Power alarm acknowledgement) key Use this function to acknowledge the alarm when power supply abnormality occurs. To enable this key, an external battery (separate power from normal AC) is required. 3 [TX/STBY] (Transmission/Standby) key When the [POWER] switch is pressed, the "STANDBY" message is displayed in the top-left corner of the screen in about 3 minutes. If this key is pressed, transmission starts. If this key is pressed during transmission, the equipment is set to a standby state. → 3.1.1 on page 3-2 4 [ALARM ACK] (Alarm acknowledgement) key Use this function to acknowledge alarms such as failure alarm, approaching target alarm, and collision alarm. By pressing this key at the occurrence of an alarm, the alarm sound can be stopped. If multiple alarms occur, press this key same time as the alarms. → 3.2.7 on page 3-12 5 [TUNE] (Tuning) dial Use his function to tune a transmitter. The mode is switched to manual/automatic whenever this dial is pressed. → 3.2.3 on page 3-7 6 [RAIN] (Rain / snow clutter suppression) dial This function suppresses rain / snow clutters. To increase the effect of suppression, turn the dial clockwise. The mode can be switched to manual or automatic by pressing the dial. → 3.2.6 on page 3-11 7 [SEA] (Sea clutter suppression) dial This function suppresses sea clutter. To increase the effect of suppression, turn the dial clockwise. The mode can be switched to manual or automatic by pressing the dial. → 3.2.5 on page 3-9 2- 12 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS 8 [GAIN] (Gain/pulse length) dial This function adjusts the reception sensitivity of the radar. To increase the sensitivity, turn the dial clockwise. The transmission pulse width can be switched by pressing the dial. 2 gain→ 3.2.4 on page 3-8 pulse width →3.4.2 on page 3-24 9 [RANGE +/-] (Range switching) key This function switches the range. Press [+] to increase the observation range. Press [-] to reduce the observation range. → 3.2.2 on page 3-6 10 [EBL1] (Electronic Bearing Line 1) key Use this function to display and select EBL1. If the key is pressed for 2 seconds or more, the menu for setting EBL1 is displayed. → 4.1.3 on page 4-3 11 [EBL2] (Electronic Bearing Line 2) key Use this function to display and select EBL2. If the key is pressed for 2 seconds or more, the menu for setting EBL2 is displayed. → 4.1.3 on page 4-3 12 [EBL] (Electronic Bearing Line) dial This function rotates the azimuth of the EBL that is selected in EBL1/2. By pressing the dial, the selected EBL can be switched to Center fixing → Floating → Center fixing. → 4.1.3 on page 4-3 13 [VRM1] (Variable Range Marker 1) key This function selects VRM1. The On/Off and dial use right are switched. → on page 4-6 14 [VRM2] (Variable Range Marker 2) key This function selects VRM2. The On/Off and dial use right are switched. → on page 4-6 2- 13 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS 15 [VRM] (Variable Range Marker) dial This function changes the range of the VRM that is selected by VRM1/2. By pressing the dial, the parallel line cursor function can be switched to Operation → Fixed → Off → Operation. → on page 4-6 16 [T/R VECT] (True vector display / Relative vector display) key This function switches the display mode (true/relative) of the tracked target and AIS target vector. → 5.1.6 on page 5-14 17 [TGT DATA] (Target data display) key This function displays the digital data of the tracked target or AIS target at the cursor position. the tracked target →5.2.3 on page 5-18 the AIS target →5.3.5 on page 5-29 18 [ACQ MANUAL] (Manual acquisition) key This function enables manual acquisition of the target at the cursor position. → 5.2.1 on page 5-15 19 [ACQ CANCEL] (Tracked target cancellation) key This function cancels the symbol and vector of the target that is being tracked and stops the tracking of the target. If this key is pressed for 2 seconds or more, all the targets that are being tracked are cancelled. → 5.2.2 on page 5-17 20 [DAY /NIGHT] (Day/night mode) key This function switches the color and brightness of the screen that was preset. → 3.4.12 on page 3-35 21 [AIS/TT] (AIS On/Off) key This function switches the AIS function to ON/OFF when the AIS function is enabled. → 5.3.2 on page 5-27 22 [HL OFF] (Ship's heading line Off) key HL (ship's heading highlight line) can be set to Off only while this key is pressed. → 3.4.10 on page 3-34 2- 14 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS 23 [DATA OFF] (DATA Off) key This function sets the graphics other than HL, range ring, EBL, and VRM to OFF temporarily while this key is pressed. → 3.4.11 on page 3-34 24 [PANEL] (Operator panel brilliance) key This function adjusts the lighting brilliance of various switches and dial positions on the operator panel. The brightness changes cyclically whenever this key is pressed. 2 → 3.4.13 on page 3-35 25 [USER] key By pressing this key, the signal processing setting that is preset can be called. The setting changes to FUNC OFF ==> FUNC1 ==> FUNC2 ==> FUNC3 ==> FUNC4 whenever this key is pressed. If this key pressed for 2 seconds or more, the function setting menu is displayed. → 3.9 on page 3-111 26 [OPTION1] key By pressing this key, the pre-registered menu position can be directly displayed. At factory shipment, the calling of [Main Menu] is assigned. → 3.8.7 on page 3-103 27 [OPTION2] key By pressing this key, the pre-registered menu position can be directly displayed. At factory shipment, the calling of [Sub Menu] is assigned. → 3.8.7 on page 3-103 28 Track ball This function moves the cursor mark to any position. Use this function for setting in each mode. Use this function to specify a center position of floating EBL and an off-center position. → 3.3.1 on page 3-14 29 [Track ball left button] Use this function to confirm menu selection and numeric value input. 30 [Track ball right button] Use this function to reset menu selection and numeric value input. 31 [BRILL] (Brilliance dial) This dial is provided at the right of the monitor. Use this function to adjust the brilliance of the monitor. → 3.2.1 on page 3-6 2- 15 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS 2.3 FUNCTIONS OF SOFTWARE BUTTONS In this radar, the frequently used functions can be directly set from the screen without opening the menu by using the software buttons on the screen for quick handling. The screen is divided into a number of areas and each area is named. Upper left Upper right of the display PPI of the display Own ship's information Target tracking (TT) / AIS information Digital information Menu Brilliance / Display information Alarm Lower left Lower right of the display of the display The name of each button is described from the next page. The function can be used by left-clicking while setting the arrow cursor on the button position. 2- 16 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS Upper left of the display ① Range scale switching ② Range rings display ⑦ Transmission pulse length On /Off switching ③ Motion mode true / relative switching 2 ④ Off center switching ⑤ Transmission / Standby switching ⑧ Azimuth display mode switching ⑥ Interswitch connection change 1 Range scale switching To increase the observation range scale (maximum 96NM), click + and to reduce the range (minimum 0.125NM), click -. 2 Range rings display On / Off The display of range rings are set to On / Off whenever this button is clicked. When the display is set to On, the interval of the fixed range marker is displayed. 3 Motion mode true / relative switching The screen motion mode is switched whenever the button is clicked. TM (true motion) ⇒ RM (relative motion) ⇒ TM RM(R) indicates that the radar trails is a relative trail. RM(T) indicates that the radar trails is a true trail. 4 Off center switching If this button is clicked, the cursor is moved, and left-clicked, the ship's position can be moved to the cursor position. The moving range is within 66% of the radius. If the button is clicked for 2 seconds, the off-center is set to Off and the ship's position is returned to the center of the screen. 5 Transmission / standby switching At expiration of the pre-heat time after the power is turned on, Preheat changes to Standby. Standby :Indicates a standby state. If this button is clicked in this state, the equipment is set to a transmission state. Transmit :Indicates a transmission state. If this button is clicked in this state, the equipment is set to a standby state. 2- 17 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.3 FUNCTIONS OF SOFTWARE BUTTONS 6 Interswitch connection change This button is displayed when the interswitch is connected. This button indicates the connection status of the scanner unit that is connected to the indicator. If the button is clicked in the transmission standby state, the menu for changing the connection state between the scanner unit and the indicator is displayed. The connection state of the scanner unit and indicator cannot be changed unless the master indicator is in a standby state. Refer to the Appendix A NQE-3141 Interswitch Unit Interswitch (Optional) Instruction Manual that is attached for the setting method. This button is not displayed if the interswitch is not connected. 7 Transmission pulse length switching The transmission pulse length is switched whenever this button is clicked. Three types of pulses are available, short pulse (SP), middle pulse (MP), and long pulse (LP). The pulse length and repetition frequency vary even for the same short pulse, according to the range that is used and it is displayed as SP1 , SP2. 8 Azimuth display mode switching The azimuth display is switched whenever this button is clicked. H Up (Head Up) ⇒ N Up (North Up) ⇒ C Up (Course Up) ⇒ H Up If the button is clicked for 2 seconds, the GYTO Setting menu is displayed. Lower left of the display ① Double zoom switching ② Interference rejection (IR) ④ Radar video processing (PROC) mode switching mode switching ⑤ Function (FUNC) ③ Target enhance (ENH) mode switching mode switching ⑩ Sea clutter suppression (Sea) ⑥ Gain adjustment mode switching ⑦ Sea clutter suppression (Sea) ⑪ Rain and snow clutter adjustment suppression (Rain) mode switching ⑧ Rain / snow clutter suppression (Rain) ⑫ Tune mode switching adjustment ⑨ Tune adjustment 1 Double zoom switching Use this function to enlarge to double the size the display screen of the position specified by the cursor. If this button is clicked, the zoom mode is set. When the cursor is moved to the radar screen and left-clicked, the screen is enlarged to double the size so that the middle of the cursor and the own ship's position is set to the center of the screen. This function cannot be used when the range is 0.125NM. 2- 18 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS 2 Interference rejection (IR) mode switching The interference rejection mode is switched whenever this button is clicked. IR Off ⇒ IR Low ⇒ IR Meddle ⇒ IR High ⇒ IR Off 3 Target enhance (ENH) mode switching 2 The target enhance mode is switched whenever this button is clicked. ENH Off ⇒ ENH Level1 ⇒ ENH Level2 ⇒ ENH Level3 ⇒ ENH Off 4 Radar video processing (PROC) mode switching The radar video processing mode is switched whenever this button is clicked. PROC Off ⇒ 3Scan CORREL ⇒ 4Scan CORREL ⇒ 5Scan CORREL ⇒ Remain ⇒ Peak Hold ⇒ PROC Off 5 Function (FUNC) mode switching The function mode is switched whenever this button is clicked. FUNC Off ⇒ Coast ⇒ Deep Sea ⇒ Fishnet ⇒ Storm ⇒ FUNC Off If the button is clicked for 2 seconds, the function registration menu (User Function Setting) is opened. 6 , 7 , 8 and 9 Gain, Sea clutter suppression(Sea)、Rain / snow clutter suppression (Rain), Tune adjustment (Tune) Adjust the gain, sea clutter suppression, rain / snow clutter suppression and tune using the track ball. If the button is clicked on, the adjustment value is shown at the upper-right of the cursor. Make adjustments by moving the track ball to the left and right. Determine the adjustment by left-clicking. 10 , 11 and 12 Sea clutter suppression (Sea) mode, Rain and snow clutter suppression (Rain) mode, and Tune mode switching Use these functions to switch to the manual or automatic mode of sea clutter suppression, rain and snow clutter suppression, and tune. The bar on the left side indicates the position of the dial. The mode is switched to MAN (manual) / AUTO (automatic) whenever the button is clicked. If rain and snow clutter suppression is switched to an automatic mode, sea clutter suppression is switched to an automatic mode also. 2- 19 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.3 FUNCTIONS OF SOFTWARE BUTTONS Upper Right of the display ⑨ EBL1 numeric value indication ② Mark font / line pattern true / relative switching switching ① Cursor mode switching ③ Mark color / line color switching ④ Cursor bearing ⑪ EBL1 starting point numeric value display mode switching true / relative switching ⑫ EBL2 starting point mode switching ⑤ EBL1 adjustment ⑬ Parallel index line ⑥ VRM1 adjustment setting ⑦ EBL2 adjustment ⑧ VRM2 adjustment ⑩ EBL2 numeric value indication ⑭ Parallel index line true / relative switching starting point mode switching 1 Cursor mode switching The mode of the function that uses the cursor is switched whenever this button is pressed. AUTO ⇒ ACQ TT ⇒ ACT AIS ⇒ TGT Data ⇒ CNCL TT ⇒ DEACT AIS ⇒ CNCL Data ⇒ □ ⇒ ------- ⇒ Property ⇒ AUTO 2 Mark font / line pattern switching This function switches a mark font / line pattern. If this button is clicked while the cursor mode is □ (mark) or - - - - - - - (line), the mark font / line pattern is changed. 3 Mark color / line color switching This function switches a mark color / line color. If this button is clicked while the cursor mode is □ (mark) or - - - - - - - (line), the mark color / line color is changed. 4 Cursor bearing numeric value display true / relative switching The bearing numeric value display T (true bearing) / R (relative bearing) of the cursor is switched whenever this button is clicked. 2- 20 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS 5 , 6 , 7 and 8 EBL1 / 2 and VRM1 / 2 adjustment These functions set the EBL1 , VRM1 , EBL2 , and VRM2 displays to On / Off and acquire the operation right. If the button is clicked on, the operation right is acquired. Make adjustments by moving the track ball to the left and right Determine the adjustment by left-clicking. 9 and 10 EBL1, EBL2 numeric value true / relative switching 2 The EBL1 / 2 bearing numeric value display T (true bearing) / R (relative bearing) is switched whenever the button is clicked. If the button is clicked for 2 seconds, the EBL / Cursor Setting menu is displayed. 11 and 12 EBL1 / EBL2 starting point mode switching The EBL starting point is set to CCRP or any position on the radar screen whenever this button is clicked. _ ⇒ C ⇒ D ⇒ _ _ :Center The starting point is fixed to the CCRP position. C :Screen Fix The starting point is set to the cursor position. If left- clicked subsequently, the starting position is fixed to the cursor position. D :L/L Fixi The starting point is set to the cursor position. If left-clicked subsequently, the starting position is fixed to the latitude / longitude of the cursor. (Connection of a navigator is necessary.) If the starting point is moved outside of the screen, the operation is reset automatically and the starting point returns to the CCRP position. i. D is enabled only when a navigator is connected. 13 Parallel index line setting This function sets the parallel index line display to On / Off and acquires the operation right. If this button is clicked, the operation right is acquired and the menu is opened. After setting, determine the setting by left-clicking. 14 Parallel index line starting point mode switching The parallel index line starting point is set to CCRP or any position on the radar screen whenever this button is clicked. In the same way as for the EBL starting point, three options are available, _ : Center, C : Screen Fix, and D : L/L Fix. 2- 21 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.3 FUNCTIONS OF SOFTWARE BUTTONS Lower right of the display ③ Own ship's track interval switching ① Mark color switching ④ Own ship's track interval unit switching ② Own ship’s track color switching ⑤ Map display On / Off ⑧ CPA ring display On / Off ⑥ Graphic display Off ⑦ Ship's heading line Off 1 Mark color switching The color of the mark is switched whenever this button is clicked. If the button is clicked for 2 seconds, the Mark Setting menu is opened. 2 Own ship's track color switching The own ship's track color is switched whenever this button is clicked. 3 Own ship's track interval switching The own ship's track interval is switched whenever this button is clicked. 4 Own ship's track interval unit switching The unit of the own ship's track interval is switched whenever this button is clicked. sec ⇒ min ⇒ NM ⇒ sec 5 Map display On / Off The own track, target track and route display are set to On / Off whenever this button is clicked. If the button is clicked for 2 seconds, the Map Setting menu is opened. 6 Graphic display Off While the button is clicked, the graphic display other than VRM, EBL, HL, a cursor, and range rings on the radar screen is cleared temporarily. 7 Ship's heading line Off The ship's heading line (HL) display is set to Off while this button is clicked. Since the ship's heading line is cleared while the button is clicked, the target in the ship's heading bearing can be clearly seen. 2- 22 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS 8 CPA ring display On / Off The CPA ring display is switched to On / Off whenever the button is clicked. When the target vector display mode is T (true vector), the CPA ring cannot be set to On. Own ship's information 2 ① Heading device switching ④ Manual own ship's speed ② Speed sensor setting switching ③ Time display mode switching 1 Heading device switching The heading device is switched whenever this button is clicked. GYRO ⇒ CMPS (Electronic compass)⇒ GYRO When the selected heading device is not connected to the equipment, an alarm is issued. 2 Speed sensor switching The speed sensor is switched whenever the button is clicked. MAN (Manual) ⇒ LOG (Single-axis water log) ⇒ 2AXW (Dual-axis water log) ⇒ 2AXG (Dual-axis ground log) ⇒ GPS ⇒ MAN When the selected speed device is not connected to the equipment, an alarm is issued. 3 Time display mode switching The time display mode UTC (universal time clock) / LMT (local mean time) is switched whenever this button is clicked. 4 Manual own ship's speed setting When selection of the speed sensor is set to MAN , enter the own ship's speed manually. If this button is clicked, the numeric value input screen is opened. After setting a value, determine the entry by clicking ENT. 2- 23 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.3 FUNCTIONS OF SOFTWARE BUTTONS Target tracking (TT) / AIS information ① Target vector display ② Target vector length setting ④ TCPA limit setting true / relative switching ⑥ Past position display ③ CPA limit setting interval switching ⑤ Past position display true / relative switching ⑦ Past position display interval unit switching ⑧ AIS On / Off ⑪ Association On / Off ⑨ Tracked target symbol display On / Off ⑫ AIS filter mode switching ⑩ AIS target symbol display On / Off ⑬ Radar trails display ⑭ Radar trails display time true / relative switching switching 1 Target vector display true / relative switching The tracked target / AIS target vector display is switched to T (true vector) / R (relative vector) whenever this button is clicked. This setting is switched together with the past position display true / relative switching. 2 Target vector length setting Set a vector length of the tracked target / AIS target. If this button is clicked, the numeric value input screen is opened. After setting the length, determine the setting by clicking ENT. 3 CPA limit setting Set a CPA limit. If this button is clicked, the numeric value input screen is opened. After setting the limit, determine the setting by clicking ENT. 4 TCPA limit setting Set a TCPA limit. If this button is clicked, the numeric value input screen is opened. After setting the limit, determine the setting by clicking ENT. 5 Past position display true / relative switching The tracked target / AIS target past position display is switched to T (true past position) / R (relative past position) whenever the button is clicked. This setting is switched together with the target vector display true / relative switching. 2- 24 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS 6 Past position display interval switching The past position display interval is switched whenever the button is clicked. 7 Past position display interval unit switching The past position display interval unit is switched whenever the button is clicked. min ⇒ NM ⇒ min 2 8 AIS On / Off The AIS display is switched to On / Off whenever the button is clicked. 9 Tracked target symbol display On / Off The tracked target symbol display is switched to On / Off whenever the button is clicked. Use this function to avoid confusion with the AIS symbol. 10 AIS target symbol display On / Off The AIS target symbol display is switched to On / Off whenever the button is clicked. Use this function to avoid confusion with the tracked target symbol. 11 Association On / Off The tracked target / AIS target association is switched to On / Off whenever the button is clicked. 12 AIS filter mode switching The AIS filter is switched whenever the button is clicked. Range ⇒ Sector ⇒ Zone ⇒ Range 13 Radar trails display true / relative switching Radar trails are switched to T (true motion trail) / R (relative motion trail) whenever this button is clicked. This setting is restricted by the radar display motion mode. In relative motion display mode (RM), switching to T / R is possible. In true motion display mode (TM), only T can be set. 14 Radar trails display time switching The radar trails display time is switched whenever the button is clicked. If the time does not reach the radar trails time that was set, the remaining time is displayed on the right-hand side. If the button is clicked for 2 seconds, the RADAR Trails Setting menu is opened. 2- 25 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.3 FUNCTIONS OF SOFTWARE BUTTONS Numeric information: AIS target information simple display ①:Detail / simple display switching ②:Unread message display 1 Detail / simple display switching This function switches the display mode to detail / simple display when AIS target information is displayed. 2 Unread message display When there is an unread message from the AIS target that is displayed, the message is displayed. If this button is clicked, the message is displayed. 2- 26 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS Numeric information: Tracked target information ① Tracked target numeric value indication scroll 2 1 Tracked target numeric value indication scroll This function scrolls the target numbers that are indicated in the tracked target information. Numeric information: Navigation information ① Wind direction / speed numeric value indication true / relative switching 1 Wind direction / speed numeric value indication true / relative switching The wind direction / speed numeric value indication is switched to T (true) / R (relative) whenever this button is clicked. 2- 27 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.3 FUNCTIONS OF SOFTWARE BUTTONS Graph information: Wind direction / speed ① Wind direction / speed numeric value indication true / relative switching 1 Wind direction / speed numeric value indication true / relative switching The wind direction / speed numeric value indication is switched to T (true) / R (relative) whenever this button is clicked. Menu ④ Main menu ① Digital information display ⑦ Parallel index line menu ⑧ Automatic acquisition / ② Target Tracking (TT) menu activation zone (AZ) menu ③ Own ship’s track menu ⑨ User map menu ⑤ AIS menu ⑥ Route menu 1 Digital information display If this button is clicked while the menu screen is open, the menu is closed and control returns to the digital information display. This function switches between the tracked target / AIS target display and navigation information or the course bar, and so on. 2 Target Tracking (TT) menu If this button is clicked, the TT Menu is opened. 3 Own track menu If this button is clicked, the Own Track Menu is opened. 4 Main menu If this button is clicked, the Main Menu is opened. 2- 28 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS 5 AIS menu If the button is clicked, the AIS Menu is opened. 6 Route menu 7 If this button is clicked, the Route Menu is opened. Parallel index line menu 2 If this button is clicked, the PI Menu is opened. 8 Automatic acquisition / activation zone menu If this button is clicked, the AZ Menu is opened. 9 User map menu If the button is clicked, the User Map Menu is opened. Brilliance ① Display item switching ② Panel lighting brilliance switching ⑤ Day / night mode switching ③ Radar video brilliance ④ Tracked target / AIS target symbol switching brilliance switching Display information ① Display item switching ⑥ User map load ⑦ User setting load 2- 29 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.3 FUNCTIONS OF SOFTWARE BUTTONS 1 Display item switching The brilliance adjustment screen and display information setting screen interchange whenever this button is clicked. ⇔ 2 Panel lighting brilliance switching This function enables the setting of the brilliance of the lighting of the control panel. The brilliance changes whenever this button is clicked. Five levels of settings are available. 3 Radar video brilliance switching Adjust the brightness of the radar video (echo). The brilliance changes whenever this button is clicked. Four levels of settings are available. 4 Tracked target / AIS target symbol brilliance switching Use this function to adjust the brilliance of the tracked target / AIS target symbol. The brilliance changes whenever this button is clicked. Five levels of settings are available. 5 Day / night mode switching The day / night mode is switched whenever this button is clicked. Day1 → Day2 → Day3 → Dusk Day2 ← Day3 ← Dusk ← Night 6 User map load If this button is clicked, the user created map read menu is opened. 7 User setting load If this button is clicked, the user setting read menu is opened. 2- 30 JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3 FUNCTIONS OF SOFTWARE BUTTONS Alarm ① Alarm acknowridgement ② Error log display 1 Alarm acknowledgment 2 If this button is clicked, the buzzer sound of the alarm that is currently issued is stopped and the alarm lamp stops blinking. If multiple alarms are issued, the next alarm to be acknowledged is displayed. If the button is clicked, the alarm displayed on the top is acknowledged. The alarms that are currently issued are displayed at the bottom one by one. 2 Alarm log display If this button is clicked, the alarm log is display. 2- 31 SECTION 3 BASIC OPERATION BASIC OPERATION 3.1 OPERATION FLOW...............................................................................3-1 3.1.1 Power ON and Start the System....................................................3-2 3.1.2 Observe and Adjust Video..............................................................3-4 3.1.3 Acquire and Measure Data.............................................................3-4 3.1.4 Display and Measure with Reference to CCRP............................3-4 3.1.5 End the Operation and Stop the System.......................................3-5 3.2 OBSERVE AND ADJUST VIDEO..........................................................3-6 3.2.1 Adjust Monitor Brilliance [BRILL]..................................................3-6 3.2.2 Change Observation Range [RANGE+/-]......................................3-6 3.2.3 Tune..................................................................................................3-7 3.2.4 Adjust Gain [GAIN].........................................................................3-8 3.2.5 Suppress Sea Clutter [SEA]..........................................................3-9 3.2.6 Suppress Rain/Snow Clutter [RAIN]...........................................3-11 3.2.7 Reset Alarm Buzzer [ALARM ACK].............................................3-12 3.2.8 To get the appropriate image that targets can be easily observed...3-13 3.3 OPERATION PROCEDURES..............................................................3-14 3.3.1 Move Cross Cursor Mark by Trackball........................................3-14 3.3.2 Operate Software Buttons...........................................................3-15 3.3.3 Basic Menu Operation..................................................................3-16 3.3.4 Operation on Numeric Value, Latitude / Longitude and Character Input menu.......3-17 3.3.5 Overview of Menu Structure.........................................................3-22 3.4 GENERAL RADAR OPERATION........................................................3-23 3.4.1 Interference Rejection (IR)............................................................3-23 3.4.2 Switch Transmitter Pulse Length [GAIN]....................................3-24 3.4.3 Target Enhance (ENH)..................................................................3-25 3.4.4 Use Video Processing (PROC).....................................................3-26 3.4.5 Switch Azimuth Display Mode (AZI MODE)................................3-27 3.4.6 Switch True/Relative Motion Display Mode (TM/RM).................3-28 3.4.7 Move Own Ship’s Display Position (Off Center).........................3-29 3.4.8 Display Radar Trails (Trails).........................................................3-30 3.4.9 Zoom (x2).......................................................................................3-33 3.4.10 Hide/Display Range Rings [HL OFF]...........................................3-34 3.4.11 Hide Graphics Information on Radar Display [DATA OFF].......3-34 3.4.12 Switch Day/Night Mode [DAY/NIGHT].........................................3-35 3.4.13 Adjust Operation Panel Brilliance [PANEL]................................3-35 3.4.14 Set True Bearing............................................................................3-36 3.4.15 Set Own Ship Speed.....................................................................3-36 3.4.16 Magnet Compass Correction (MAG Compass Setting).............3-37 3.5 USE OWN SHIP'S TRACK...................................................................3-39 3.5.1 Display Own Ship's Track (Display Own Track).........................3-39 3.5.2 Set Display Color of Own Ship's Track (Display Own Track Color)..3-40 3.5.3 Save Own Ship's Track (Own Track Memory)............................3-41 3.5.4 Cancel Saving of Own Ship's Track (Own Track Memory)........3-41 3.5.5 Clear Own Ship's Track (Clear Own Track)................................3-42 3.5.6 Use Expanded Own Ship's Track (Own Track Type).................3-42 3.5.7 Use Water Depth Track (Water Depth Track)..............................3-44 3.5.8 Use Water Temperature Track (Water TEMP Track)..................3-45 3.5.9 Use Tidal Current Track (Current Vector Track).........................3-46 3.6 DISPLAY USER MAP...........................................................................3-47 3.6.1 Create User Map (Mark/Line)........................................................3-47 3.6.2 Set User Map Display (Mark Display Setting).............................3-50 3.6.3 Edit User Map (Edit User Map).....................................................3-52 3.6.4 Correct Position on User Map (Shift User Map).........................3-60 3.6.5 Save User Map...............................................................................3-61 3.6.6 Set and Display Geodetic System (Geodetic).............................3-65 3.7 USE ROUTE FUNCTION......................................................................3-67 3.7.1 Display Route/Destination Mark (Select Route).........................3-67 3.7.2 Edit Route (Set Route Sequence)................................................3-68 3.7.3 Edit Route Make with Latitude and Longitude (Waypoint Input).......3-75 3.7.4 Use Route Monitoring Function (Waypoint/Route Alarm).........3-79 3.7.5 Method of Using Route.................................................................3-81 3.7.6 Detailed Route Settings................................................................3-82 3.7.7 Clear Waypoint/Route Data (Clear WPT/Route Data).................3-86 3.7.8 Operate Route Data File................................................................3-87 3.8 APPLIED OPERATIONS......................................................................3-91 3.8.1 Set Radar Signal Processing (Process Setting).........................3-91 3.8.2 Set Radar Trails (RADAR Trails Setting).....................................3-95 3.8.3 Set Scanner Unit (TXRX Setting).................................................3-97 3.8.4 Set Cursor (Cursor Setting)..........................................................3-98 3.8.5 Set Radar Display (Display Setting)............................................3-99 3.8.6 Adjust Sound Volume (Buzzer Volume)....................................3-102 3.8.7 Set User Option Keys [OPTION 1/2]..........................................3-103 3.8.8 Set Navigation Data Display (Multi Window Setting)...............3-105 3.8.9 AUTO Backup..............................................................................3-110 3.9 USE FUNCTION KEY [USER]...........................................................3-111 3.9.1 Operation Procedures.................................................................3-111 3.9.2 Function Setting Menu Items.....................................................3-112 3.9.3 Overview of Function Operations (User Function Setting).....3-113 3.9.4 Overview of saved Function Setting Data.................................3-117 3.10 USE USER SETTING.........................................................................3-118 3.10.1 Save Operating State (Save User Setting)................................3-118 3.10.2 Load Operating State (Load User Setting)................................3-119 3.10.3 Delete Operating State (Delete User Setting)...........................3-119 3.11 USING CARD.....................................................................................3-120 3.11.1 Operate File on the Card (File Manager)...................................3-120 3.12 RECEIVE PORT SETTING.................................................................3-127 3.12.1 Receive Port Setting (RX Port)...................................................3-127 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.1 OPERATION FLOW 3.1 OPERATION FLOW Attention Do not put anything on the operation panel. If you put anything hot on it, it may be deformed. 3 Do not give any impact to the operation panel, trackball, or controls. Otherwise, any failure or damage may result. POWER ON AND START THE SYSTEM OBSERVE AND ADJUST VIDEO ACQUIRE AND MEASURE DATA END THE OPERATION AND STOP THE SYSTEM Each operation is described in detail below. 3- 1 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.1 OPERATION FLOW 3.1.1 Power ON and Start the System A malfunction may occur if the power in the ship is ! instantaneously interrupted during operation of the radar. In this case, the power should be turned on again. Attention 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. If the preheating time is short, the magnetron causes sparks, resulting in its unstable oscillation. Start transmission on a short-pulse range and change the range to the longer pulse ranges in turn. If the transmission is unstable in the meantime, immediately place the system back into the standby state and maintain it in the standby state for 5 to 10 minutes before restarting the operation. Repeat these steps until the operation is stabilized. 3- 2 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.1 OPERATION FLOW Procedures 1) Check that the ship’s mains are turned on. 2) Press [POWER] key. The system is turned on, and the preheating time is displayed. Preheat is indicated at the upper left of the radar display. 3) Wait until the preheating time is over. When the preheating time is over, the preheating time screen disappears, and at the upper left of the radar display changes to Standby. Preheat 3 4) Press [TX/STBY] key. The radar will start transmission and the antenna will start rotating. Standby at the upper left of the radar display changes to Transmit. The radar does not start transmission if you press [TX/STBY] NOTE: Preheat key while is indicated. 3- 3 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.1 OPERATION FLOW 3.1.2 Observe and Adjust Video Procedures 1) Press [RANGE+] key or [RANGE-] key to set the range to the scale required for target observation. 2) [GAIN] [SEA] and [RAIN] to obtain the clearest targets. Refer to [GAIN] dial→ Section 3.2.4 "Adjust Gain [GAIN]" [SEA] dial → Section 3.2.5 "Suppress Sea Clutter [SEA]" [RAIN] dial → Section 3.2.6 "Suppress Rain/Snow Clutter [RAIN]" for how to use each dial. For how to adjust video, see Section 3.2 "OBSERVE AND ADJUST VIDEO" 3.1.3 Acquire and Measure Data For details on how to acquire data and measure, see the SECTION 4"MEASUREMENT OF RANGE AND BEARING". 3.1.4 Display and Measure with Reference to CCRP The radar video, range, bearing, Target Tracking and AIS data display etc... are displayed with reference to CCRP (Consistent Common Reference Point). If scanner is switched, these data are measured from CCRP. If some kind of functions (for example off center, true motion mode, etc.) set scanner position to 75% outside of the PPI range, these data except Target Tracking and AIS data are displayed with reference to scanner position. For how to setting CCRP, see the Section 7.1.9 "Setting of CCRP (CCRP Setting)". 3- 4 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.1 OPERATION FLOW 3.1.5 End the Operation and Stop the System Exit 1) Press [TX/STBY] key. The radar will stop transmission and the antenna will stop rotating. Transmit at the upper left of the radar display changes to Standby. Maintain the standby state if radar observation is restarted in a i relatively short time.Only pressing the [TX/STBY] key starts observation. 3 2) Press [POWER] key. The system will be turned off. When conducting maintenance work, make sure to turn ! off the power and make the main breaker OFF so that the power supply to the equipment is completely cut off. Some equipment components can carry electrical current even after the power switch is turned off, and conducting maintenance work without unplugging the power connector may result in electrocution, equipment failure, or accidents. 3- 5 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.2 OBSERVE AND ADJUST VIDEO 3.2 OBSERVE AND ADJUST VIDEO 3.2.1 Adjust Monitor Brilliance [BRILL] Procedures 1) Obtain the best-to-see display with optimum brilliance by turning the [BRILL] dial at the lower right of the monitor unit. Turning the [BRILL] dial clockwise increases the brilliance of the entire display. Conversely, turning the [BRILL] dial counterclockwise decreases the brilliance of the entire display. In consideration of the ambient brightness, adjust display brilliance that is high enough to easily observe the radar display but does not glare. 3.2.2 Change Observation Range [RANGE+/-] Procedures 1) Pressing the [RANGE+] key will increase the observation range, enabling the wider area to be observed. Increasing the observation range will enable a wider range to be observed. However, a video image is small and the ability to detect targets near own ship decreases. Therefore, when observing the vicinity of own ship, use the smaller observation range. 2) Pressing the [RANGE-] key will decrease the observation range, reducing the area that can be observed. Decreasing the observation range will enable the vicinity of own ship to be enlarged. However, caution must be taken because video images of the area beyond the observation range cannot be displayed. 3- 6 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.2 OBSERVE AND ADJUST VIDEO 3.2.3 Tune Normally, use the automatic tune mode. Use the manual tune mode only when best tuning is not possible in the automatic tune mode due to deterioration of magnetron. 3 This radar system provides the automatic tune mode and the manual tune mode. The automatic tune mode automatically adjusts the tuning of the transmitting frequency and the receiving frequency, and the manual tune mode enables tuning to be adjusted by using the dial located on the operation panel. Normally use the automatic tune mode. Only when the best tuning is not possible by the automatic tune mode due to the deterioration of magnetron, use the manual tune mode. The currently used tune mode is displayed in the area at the lower left of the display. 3.2.3.1 When using the automatic tune mode Procedures 1) Press the [TUNE] dial to set the automatic tune mode. Tune adjustment is automatically conducted in the automatic tune mode. Tune is adjusted at the start of transmission, at the change of the range or pulse width. Tune adjustment is completed within several seconds. 3.2.3.2 When using the manual tune mode Procedures 1) Press the [TUNE] dial to set the manual tune mode. 2) Turn the [TUNE] dial to make adjustments so that the tuning bar is maximized. The tuning bar is displayed in the area at the upper left of the display. 3- 7 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.2 OBSERVE AND ADJUST VIDEO 3.2.4 Adjust Gain [GAIN] If the gain is too high, unnecessary signals including receiver noise and false images increase resulting in reduction of visibility of targets. On the contrary, if the gain is too low, targets including ships and dangerous objects may not be clearly indicated. Be sure to always adjust for the best gain. See also the Section 3.2.8 "To get the appropriate image that targets can be easily observed". Procedures 1) Adjust noise on the radar display by turning the [GAIN] dial until targets can be easily observed. Turning [GAIN] dial clockwise increases gain. Turning [GAIN] dial counterclockwise decreases gain. Turning the [GAIN] dial clockwise will increase the receiving gain, and the range to observe radar video is widened. However, if the gain is too high, unnecessary signals including receiver noise and false images increase resulting in reduction of targets' visibility. To observe densely crowded targets or short-range targets, turning the [GAIN] dial counterclockwise will decrease the receiving gain, which enables targets to be easily observed. However, caution must be taken so as not to overlook a small and important target. It is recommended to restore the setting to Current Level i the factory default, if you lost the appropriate settings.The factory default level is shown on the bar chart as a green line. The factory default level is assigned by Factory Default every function mode. See the Section 3.9 "USE FUNCTION KEY [USER]" 3- 8 JMA-9100 Instruction Manual > 3.BASIC OPERATION > 3.2 OBSERVE AND ADJUST VIDEO 3.2.5 Suppress Sea Clutter [SEA] When using the sea clutter suppression function, never set the suppression level too high canceling out all image noises from the sea surface at close range. Detection of not only echoes from waves but also targets such as other ships or dangerous objects will become inhibited. 3 When using the [AUTO SEA] function, make sure to choose the most appropriate image noise suppression level. See also the Section 3.2.8 "To get the appropriate image that targets can be easily observed". 3.2.5.1 Using the manual sea clutter suppression mode Procedures 1) Adjust the sea clutter returns on the radar display by turning the [SEA] dial until targets can be easily