Furuno USA 9ZW7062 User Manual 77875
Furuno USA Inc 77875
8
FUD®®JENJ® OPERATORS MANUAL MARINE RADAR MM 6 FURUNO ELECTRIC co, LTD. NlSHlNOMlYA.JAPAN & SAFETY INSTRUCTIONS A WARNING Radio Frequency Radiation Hazard The radar antenna emits electromagnetic radio frequency (RF) energy which can be harmful, particularly to your eyes. Never look directly into the antenna aperture from a close distance while the radar is in operation or expose yoursell to the transmitting antenna at a close distance. Distances at which RF radiation levels of 100 and 10 WIm’ exist are given in the table below. Note: It the antenna unit is installed at a close distance in front of the wheel house, your administration may require trait of transmission within a certain sector of antenna revolution. This is possible—Ask your FURUNO representative or dealer to provide this feature. . aiming. to 100 wmf Dimno- to 10 wrm2 Model ‘ Radiator type point FR7062 XN12A (4') , Worst case 2.5 m (X-bnd, 6 kW) XNtaA (6') Worst case 2.3 m __4 ,._._ FR7112 XN12A (4') Worst case 0.5 m Worst case 7.5 m (X-bnd, 10 kW) XN13A (6') Worst case 0.3 m Worst case 7.0 m FR7252 XN12A (4‘) Worst case 0.8 m Worst case 9.5 m (X-bnd, 25 kW) XN13A (6') Worst case 0.7 m Worst case 9.0 m & WARNING Do not open the equipment. Improper handling can result in electrical shock. Only qualified personnel shold work inside the equipment. Stay away from transmltting antenna. The radar antenna emits mi- crowave radiation which can be harmful to the human body, particularly the eyes. Never look directly into the antenna radiator from a distance of less than 1 m when the radar is in operation. Do not dlsassemble or modify the equipment. Fire electrical shock or serious iniury can result. Tum oft the power immedlately It water leaks into the equipment or the equip- ment is emitting smoke or tlre. Continued use of the equipment can cause fire or electrical shock, Do not place liquid-tilled containers on the top of the equipment. Fire or electrical shock can result ii a liquid spills into the equipment. & WARNING Do not place llquld-tllled oontalners on the top ot the equipment. fire or electrical shock can result if a liquid spills into the equipment. Do not operate the equlpment with wet hands. Electrical shock can result. Keep heater away from equipment. Heat can alter equipment shape and melt the power cord, which can cause fire or electrical shock. Do not use the equipment tor other than Its Intended purpose. Use of the equipment as a stepping stool, for example, can result in personal injury or equipment damage. A warning label is attached to the an- tenna unlt. Do not remove the label. It the label la peeling off or is Illegible, contact a FURUNO agent or dealer. No one navigation devlce should ever be solely replied upon for the navigatlon ot a vessel. Always confirm position against all available aids to navigation, lor safety 01 vessel and crew. Use the proper tuse. Fuse rating is shown on page 5-1. Use of a wrong fuse can result in equipment damage. SART (Search and Rescue Transponder) A Search and Rescue Transponder (SART) may be triggered by any X-Band (3 cm) radar within a range of approximately 8 n.miles. Each radar pulse received causes it to transmit a response which is swept repetitively across the complete radar frequency band. When interrogated, it first sweeps rapidly (0.4 usec) through the band before beginning a rela- tively slow sweep (7.5 psec) through the band back to the starting frequency. This process is repeated for a total of twelve complete cycles. At some point in each sweep, the SART frequency will match that of the interrogating radar and be within the pass band of the radar receiver. if the SAFiT is within range, the frequency match during each of the 12 slow sweeps will produce a response on the radar display, thus a line of 12 dots equally spaced by about 0.64 nautical miles will be shown. When the radar to the SART is reduced to about 1 n.miles, the radar display may show also the 12 respopnses generated during the fast sweeps. These additional dot responses, which also are equaly spaced by 0.64 nautical miles, will be interspersed with the original line of 12 dots. They will appear slightly weaker and smaler than the original dots. Screln A: WM" SART Scmn B: wmn SART I: distant ll close Radar antenna beamwlcth Posmon ol Radar receiver " bandwidth Showing SAFtT marks on the radar display To show the SART marks only on the radar display, detune the radar receiver by turning the TUNE control out of best tuning condition. This erases or weakens all normal radar echoes, but, the SART marks are not erased because the SAFiT response signal scans over all frequencies in the 9 GHz band. When the radar approaches the SART in opera- tion, the SAFlT marks will enlarge to large arcs, blurring a large part of the screen. Reduce the sensitivity and adjust the sea clutter control of the radar. Summary to detect SART response 1. Use range scale of 6 or 12 nm as the spacing between the SART responses is about 0.6 nm (1125 m) to distinguish the SART. 2. Tum off the automatic clutter suppression. St Turn off the Interference Rejector. 4. Turn off the Echo Average. General remarks on receiving SART Radar range scale When looking for a SAFlT it is preferable to use either the 6 or 12 nautical mile range scale. This is because the total displayed length of the SART response of 12 (or 24) dots may extend approximately 95 nautical miles beyond the position of the SAFtT and it is neces— sary to see a number of response dots to distinguish the SART from other responses. SART range errors When responses from only the 12 low frequency sweeps are visible (when the SAFtT is at a range greater than about 1 n.mi|e), the position at which the first dot is displayed may be as mush as 0.64 nrmile beyond the true position of the SART. When the range closes so that the fast sweep responses are seen also, the first of these will be no more than 150 meters beyond the true position. FOREWORD Congratulations on your choice of the FURUNO FR-7062/7112/7252 Marine Radar. We are confident you will see why the FURUNO name has become synonymous with quality and reliability. For over 40 years FURU'NO Electric Company has enjoyed an enviable reputation for innova- tive and dependable marine electronics equip— ment. This dedication to excellence is furthered by our extensive global network of agents and dealers. Your radar is designed and constructed to meet the rigorous demands of the marine environ— ment. However, no machine can perform its intended function unless properly operated and maintained Please carefully read and follow the recommended procedures for operation and maintenance. We would appreciate hearing from you, the end- user, about whether we are achieving our pur— poses. Thank you for considering and purchasing FURUNO equipment, Features Your radar has a large variety of functions, all contained in a remarkably small cabinet. The main features of the model FR-7062 are 0 Traditional FURUNO reliability and qual- ity in a compact, lightweight and low-cost radar. 0 Durable brushless antenna motor. 0 On-screen alphanumeric readout of all op— erational information. 0 Standard features include EBL (Electronic Bearing Line), VRM (Variable Range Marker), Guard Alarm. Display Off Center. and Echo Trail. 0 Watchman feature periodically transmits the radar to check for radar targets which may have entered the alarm zone. 0 Ship‘s position in latitude and longitude and Loran C TDs, range and hearing to a waypoint. speed. heading, and course can be shown in the bottom text area. (Requires a navigation aid which can output such data in IEC 1162 format.) G Zoom feature provided. 0 Auto Plotter ARP-lO (option) acquires and tracks up to lo targets, and is installed in the display unit. 0 Cursor position data (TLL) can be output to a plotter (option). TABLE OF CONTENTS FOREWORD .. .. v MENU TREE ....................... Vii SYSTEM CONFIGURATION.... viii 1. PRINCIPLE OF OPERATION 1.1 What is Radar7 1-1 1.2 How Ships Determined Position Before Radar ................................... 1-1 1.3 How Radar Determines Range 1.4 How Radar Determines Bearing 1.5 Radar Wave Speed and Antenna Rotation Speed 1—1 1.6 The Radar Display 1-1 2. BASIC OPERATION 2.1 Control Description ......................... 2—1 - 2 Display indications and Markers. 2.3 Turning the Radar On/Off ......... 2.4 Trunsmittin 2,5 Stand-by. 2.6 Selecting the Range 2.7 Adjusting Picture Brt C€.. 2 8 Adjusting Receiver Sensitivity . 2.9 Adyusting the A/C SEA Control (reducing sea clutter)“ ...2—4 2.10 Adjusting the A/C RAiN Control (reducing rain clutter) ...................... 2-5 2.11 Selecting the Presentation Mode....2-6 2.12 Erasing the Heading Marker, North Marker ...... 2.13 Magnifying Long Range Echoes (echo stretch) 2.14 Measuring the Range 2.15 Measuring the Bearing 2.16 Using the Offset EBL 2.17 Shifting (off centering) the Picture 2-9 2.18 Zoom ............................................ 2-10 3. ADVANCED OPERATION 3.1 Bast: Menu Operation ..................... 3-1 3.2 Index Lines ...................................... 3-1 3.3 Suppressing Radar Interferenc 3.4 Selecting Pulsewidth. 3.5 Displaying Navigation Data 3.6 Echo Trail.... 3. 7 Guard Alarm 3 8 Watchman. 3 9 OTHER MENU Description 3.10 Function Keys 3.11 Adjusting Brilliance of Markers. 3 8 3.12 Suppressing Second—Trace Echoes 3-8 3.13 Suppressing Noise ...... ..3~8 3.14 Outputting Target Position. .. 3-8 3.15 Tuning the Receiver ....................... 3-8 4. FALSE ECHOES 4.1 Multiple Echoes 4-1 4.2 Side-lobe Echoes 4.3 Indirect Echoes 4.4 Blind and Shadow Sectors 5. MAINTENANCE & TROUBLE- SHOOTING 5.1 Preventative Maintenance..........,..,..5-1 5.2 Replacing the Fuse 5.3 Troubleshooting .. 5.4 Self Test ................................ 5.5 Life Expectancy of Magnetron 6. ARP-10 (OPTION) 6.1 General .............................. 6.2 Keys Used for Auto Plotter 6.3 Activating the Auto Plotter 6.4 Manual Acquisition 6.5 Automatic Acquisition 6.6 Temtinating Tracking of Targets 6.7 Displaying Target Data ......... 6.8 Mode and Length of Vectors. SPECIFICATIONS .. .4-1 .4—2 .4.2 INDEX .......................... MENU TREE MENU KEY muss (on. 1.2.l. max) INDEX L|NE (u On) msp DATA (NAV, Amo plotter. NAV nnd Auta plotter) . On) INT REJECT p AHP—1 0 MENU OTHER MENU 1. Display 2. All Canoe! 3. Vemof Ref 1. Panel Dimmer (l. 2. 3.‘ 4, Vector Lenglh 2. Mark Brill (1, 2. 3,‘ 5. History 3.HD Mark (1,2, 3.l) 6.CPA SET 4». characters (1, 2, 3.I) 7. TCPA SET 5.Trall Tone ”- Mulli) 5. AUTO A00 5. Pulselength (Short, n) (With AnP-w only.) 7. Noise Reiecl fl On) 8. Trall Time (n. 308, 1M, 3M, 6M, 15m, sou, Com) 9. Tune (n. Manual) 10. WPT Mark _ On) 11. EBL Hal (-. Tue) 12. VHM Unlt “- km, 5m) |3. Want-man (fl. 5M,1oM.20M) 14. sTBY Disp ll“ Ewno, Nev) 15. Gun: Mode (i cut) 16. Own Position (w. TD) 17. Cuuor Fosi (-. LIL) 1a. Alm Sense LV _ Mid. High) 19. Dead Sador (n, On) 20. Range (I! mun. LI 2.1. 4,I. 8,I1S.I,llfl.flfl)' 21.2nd Raj M on) 228911195! 23. Insulation Setup E = Delaun setting ‘Maximum range FR-7062: 64 FR-71 1 2: 72 FR-7252: 98 SYSTEM CONFIGURATION Antenna Unit Fl-w 10"!!me I xmmm lulu-«sum Flt-"fl lmfl-RSBMW min-Rum xmu—nuu‘ruu HM:- xmzA-nsnmrzw xmn-fismm1 szh-le Navligalion‘glEC 1162'(In/0u1) Display Unit Radar Plotter ' deV'ce FR-7062fl112: EDP-122 "M10 . Flt-7252: non-123 Video Sounder w) = Remols Display 1 --------------------- ———*j PHD-81111800! 5 78010 = Gyro x compas‘s“ 1 . External Alarm Buzzer opus-21 77—4: tau-3423, 5 : PH-17QGB-2f 3 ........ { fPR-17463-2 is available for FR-7252 ‘ using XN12A (45 rpm) and XN13A. 12/24/32 VDC 115/230 VAC la, 50/60 Hz 2. BASIC OPERATION 2.1 Control Description Turns power on. —— . .. . Press together with [STEYfl'X] key — £00331) Adjusts sensmvrty of radar ow . to turn power olf. w ©._ (Switch) Temporarily erases heading Alternates between stand-by and w 50-5; marker (and north manter It displayed). ‘mnsmn' %‘ ©~———— (Control) Reduces sea clutter em xx; (Swlmh) Atttcmetimlly reduces sea displayed individually or together.’ n and rain olutters. Suppresses electrical noise . .... _ (Control) Reduces rein ciutters. ’ fl (Switch) Enlerges echoes. Selects radar range. —— Adjusts display brilliance. Selects presentation mode emong (Long press) Doubles size of area — m gigs/gilt Sggrzgiarm- silences between your vessel and location m audible alarm. selected by cursor. M d b ' (Short press) Shilts your vessel's ensures range an eermg position to cursor location. - 53:5; between two targets; predicts oolllsionoourse. Displaystergetmcvementin —— Turns corresponding VRM on/ofl. alterglow. (Long press) Outputs target data position Turns corresponding EBL en/oti. —— date to plotter. > _ jay-gt -°— (Short press) Attemately cfispleys cursor (Long 9'955) Terrntnates Pimng °f _ position display in let/long or bearing/range. the target selected WI"! CUFSORT “airings— —m (Functuion is available when nev date (Short press) Displays the data oi is not displayed_) target selected with the cursort Opens/closes menus. (1) Acquires the target selected with — Trackball the curse” (1) Shilts cursor, EBL and VRM. (2) Registers selection on menus, (2) Sets guard zone. (3) Selects items and options on . _ menu. WEN“ SW'tfih lunctlonl (4) Shilts origin of EBL and VRMl t Requires ARP-to (option). Figure 2-1 Contmlpanel Heading marker Range and bearing cl 3 target. relative to own ship. are readable on the PPI. Own ship Own ship (radar) in center (A) Blrd's eye view of silunfion (B) Radar plclure a! (A) Figure I -] How radar works 2.3 Turning the Radar On/Off Press the [POWER] key to turn the radar on. To turn the radar off, press the [POWER] key together with the [STBY/T X] key. When the radar is turned on, the control panel lights and a timer displays the time remaining for warm up of the magnetron (the device which produces radar pulses), counting down from 1:30 to 0:01 (2:00 to 0:01 for FR-7252). 2.4 Transmitting After the power is turned on and the magnetron has warmed up. STBY (Stand-By} appears at the screen center. This means the radar is now fully operational. Press the [STBY TX] key to transmit. When transmitting. any echoes from targets appear on the display. This radar displays ech- oes in eight tones of green according to echo strength, 5m Speed H 10.5 m 2.5 Stand-by When you won’t be using the radar for an ex- tended period, but you want to keep it in a state of readiness, place it in stand-by by pressing the [STBY/TX] key. The display shows “STBY." (default setting) navigation data, or goes into the economy mode. (You can select stand~by condition on the menu. More on menu operation later.) Economy mode The CRT can be set to automatically tum itself off when in standby, to reduce power consump- tion. This feature is called the “economy mode”. When the economy mode is on, the “ECONOMY” indication under the [STBY/T X] key lights. Navigatlon data display during stand-by lfa navigation aid inputs navigation data to this radar, navigation data can be displayed during standby. You can turn the navigation data dis» play on/offthrough the menu. Figure 2-3 shows a typical navigation data display during stand» by. . Vfllb Time-to-go to Stand-by Trip distance since power on new rmPEnAmnE Depth “b 125 m °c < 7 Temperature +17.3 _.,. /—\ TO Waypoint bearing V \‘ ,/ \ \ Heading Time-to-go to m; 9.08 r TO Waypoint r- ant: 45905 a _ ~—— HNG I2.0NM . Bearing to T0 W Waypotnt _ \ . 1 5; 52333321 Ship's posltlontn Range to T0 Waypornt —4—J m fig. / latitude and longitude LXTE x15 and Loran TDs warm Cross Track Error '. ' shows direction w x15 R and amount or error. vi‘fl‘ lLQflii‘ 1.0 0.5 Figure 2-3 Typical durin 0.5 1.0 navigation data display g stand-by 2.2 Display Indication and Markers Tuning status (PG-B) Tuning bar (RS—8) Echo trail firm (R34) ~Guavd Zena (F.3-4) Zoom (RE-9) or 0" oenler (Pas) Echo lraII slapsed fime (Ra-4) Heading (mquirsa heudlng um) Heading marker (P243) Range (P24) as. 1 25NM Range ring Interval (P24) —’- “525 Pulselength (P.2-4) SP Display mode (F.2-6) 2nd-tracs echo suppressor (Pa-8) Echo Simian (PI—6) EBL2 (P‘2-7) Guard zone area {Ra—4) EBL1 (P.2-7) ~——/ Hangs ring (P.2-7) VRMI (RE-7) VRM2 (P.2-7) Index lines (RS-1) Cursor (F.2-7) Nonh marker (RE-6) Noise rerclor (RH) EBLI bearing (P.2£) EBL2 bearing (P.2-8) Imadamnce rejector (P.3~: VFIM1 mnga (PA2-7) Cursov bearing (P15) VRM2 rungs (P.2-7) Cursor range (P.2-7) Figure 2-2 Display indications Adjusting the NC SEA control 2.10 Adjusting the NC RAIN The proper setting of the A/C SEA should be contro' such that the clutteris broken up into small dots, (reducing rain clutter) and small targets become distinguishable. If the control is set too low, targets will be hid- den in the clutter, while if it is set too high, both 1. Confirm that the sensitivi ‘ justed, and then transmit on short range. gets are distinguishable but some clutter re— mains on the display. Appearance oi Alt: RAIN control adjusted: Sea clutter at NC SEA control adjusted: rain clutter rain clutter suppressed. dlspiay center sea clutter suppressed , , Fi are 2-5E ect o A/C RAIN F igure 2-4 Firm in (Id/“XI [he A/C SEA control g 17 f Tip for adjusting the Alt: SEA . ‘ 4 _ . Note: In addition to reducing clutter, the [NC A common mistake is to over-adjust the Circuit RAIN] control can be used in fine so all the cluuer is removed. As an example set weather to clarify the picture when navi up for maximum A/C SEA. You will see how gating in confined waters. However, the center of the display becomes dark. This with the circuit activated the receiver is iark zone can be dangerous (targets may be less eensitwe Therefore turn oft the mssed). especially if the sensitivity is not rop- airemt when its function is not required. rly adjusted Always leave a little clutter Vis- ale on the display to be sure weak echoes will Automatic adjustments °’ NC SEA ‘ no clutter visible flfld NC RAlN n the display, turn off the circuit Note tzAvaiIabiIity of a particular display item depends on incoming data. Note 2:When Range to Waypoint reaches 0.1 nm, the WPT mark jumps to dead ahead even though a diflerence may exist between heading and BRG to WPT. Note 3:When cross track error exceeds 1 nm on either side, the XTE mark starts blinking. 2.6 Selecting the Range The range selected automatically determines the range ring interval, the number of range rings, pulselength and pulse repetition rate, for opti— mal detection capability in short to long ranges. You can select which ranges and pulselength (for 1.5 and 3 mile ranges) to use through the menu. The range, range ring interval and pulsclcngth appear at the top left-hand comer of the display. Selecting the range Press the [- RANGE +] key. The range and range ring interval appear at the top left comer on the display. Tips for selecting the range 0 When navigating in or around crowded har- bors. select a short range to watch for pos- sible collision situations, O If you select a lower range while on open water, increase the range occasionally to watch for vessels that may be heading your way. 2.7 Adjusting Picture Brilliance The [BRILL] key adjusts the brilliance of the radar picture in sixteen levels. Press the [BRILL] key to set the brilliance level. The current level momentarily appears on the screen. 2.8 Adjusting Receiver Sensitivity The [GAIN] control adjusts the sensitivity of the receiver. It works in precisely the same manner as the volume control of a broadcast receiver. amplifying the signals received. The proper setting is such that the background noise is just visible on the screen. If you set up for too little sensitivity, weak echoes may be missed. On the other hand excessive sensitivity yields too much background noise: strong tar- gets may be missed because of the poor con- trast between desired echoes and the background noise on the display. To adjust receiver sensitivity, transmit on long range, and adjust the [GAIN] control so back- ground noise is just visible on the screen. 2.9 Adjusting the NC SEA Control (reducing sea clutter) Echoes from waves can be troublesome, cover— ing the central part of the display with random signals known as “sea clutter". The higher the waves. and the higher the antenna above the wa» ter. the further the clutter will extend. Sea clut- ter appears on the display as many small echoes which might affect radar performance. (See the left-hand figure in Figure 2-4.) When sea clut- ter masks the picture, adjust the A/C SEA con- trol to reduce the clutter. How the NC SEA control works The [AIC SEA] control reduces the amplifica- tion of echoes at short ranges (where clutter is the greatest) and progressively increases am- plification as the range increases, so amplifica- tion will be normal at those ranges where there is no sea clutter. 2.14 Measuring the Range You can measure the range to a target three ways: by the range rings, by the cursor. and by the VRM (Variable Range Marker). Measuring range by range rings Count the number of rings between the center of the display and the target. Check the range ring interval and judge the distance of the echo from the inner edge of the nearest ring. To turn the rings on or off. see the menu opera- tion Iater(Chaptcr 3), Measuring range by cursor Operate the trackball to place the cursor inter- section on the inside edge of the target echo, The range to the target, as well as the bearing. appears at the bottom of the display. Measuring by VRM 1. Press either [VRM 1] or [VRM 2] key. The readout of the active marker is circum- stribed. N N F igure 2-8 Display bottom, showing location ofEBL and VRM readout: 2. Operate the trackball to place the outside edge of the VRM on the inside edge of the target. The trackball must be operated within five seconds after pressing a [VRM] key, oth- erwise the corresponding VRM cannot be operated. Press the [VRM] key again to ad» just the VRM. 3. Check the VRM readout at the bottom right hand comer of the display to find the range to the target. 4. To anchor the VRM, press the [VRM] key again. To erase the VRM. press and hold down the corresponding [VRM] key about two seconds. VHMl /range Cursor range _. 4.0 NM 3.0 NM<— van range Figure 2-9 Measuring range by the cursor and VRM Note: You can display the range readout of the VRM and cursor in nautical mi|es, statute miles or kilometers, For details see the next chapter. 2.15 Measuring the Bearing There are two ways to measure the bearing to a target: by the cursor. and by the EBL (Electronic Bearing Line). Measuring hearing by cursor Operate the trackball to bisect the target with the cursor intersection. The hearing to the tar- get appears at the bottom of the display. Measuring by EBL 1. Press the [EBL l] or [EBL 2] key. 2. Operate the trackball to bisect the target with the EBL. The trackball must be operated within five seconds after pressing an [EBL] key' other- wise the corresponding EBL cannot be oper- ated. Press the [EBL] key again to adjust the EBL. 3. Check the EBL readout at the bottom left‘ hand comer of the display to find the bear» ing to the target. 4. To anchor the EBL, press the corresponding [EBL] key again. To erase the EBL and its readout1 press and hold down the corresponding [EBL] key about two seconds. 2.11 Selecting the Presentation Mode This radar provides four presentation modes: head—up. course-up, north—up and true motion. Press the [MODE] key. With heading sensor connection, the display and the display mode indication at the top left-hand comer of the display change in the sequence of HU (Head-up), CU (Course-up), NU (N orth- up) and TM (True Motion) when the [MODE] key is pressed. Ifthere is no heading sensor con- nection, the display mode is always HU. Note: The radar begins operation with last selected display mode (except Course- up) whenever the unit is turned on. Note however that Head-up is selected when Course-up was the last-used mode. Head-up The picture is oriented so the heading marker is at the top of the display. This mode is useful for navigation in congested waters. Course-up The Course-up mode shows ship's heading by the heading marker, at the top of the display. To get heading desired, steer vessel in direction de— sired, and then show "CU“ at the top left-hand comer of the display. North-up North is at the top of the display and the head ing marker moves with ship’s heading. This mode is useful for determining ship’s position and as a navigation monitor on a nautical chart. The picture is stabilized against yaw of vessel, thereby reducing smear of target echoes. Bear- ing signal is required from a heading sensor. True motion True motion displays own ship and moving objects in their true motion. Bearing signal and speed signal are required from heading sensor and speed sensor. 2.12 Erasing the Heading Marker, North Marker The heading marker or north marker (available with gyrocompass connection) may occasion- ally mask a target. To view the target, you can temporarily erase the heading marker and north marker by pressing and holding down the [GAIN (HM OFF» control. Release the con- trol to re—display the markers. Heading flanker North mark-r Figure 2-6 Heading marker and north marker 2.13 Magnifying Long Range Echoes (echo stretch) Normally, the reflected echoes from long range targets appear on the display as weaker and smaller blips even though they are compensated by the radar‘s internal circuitry, The echo stretch function magnifies these small blips in all ranges. Two types of echo stretch are available: 551 which stretches echoes in bearing direc- tion and E32 which stretches them in both range and bearing directions. To turn the echo stretch on or off, press the [AIC RAIN (ES)] control. Each press changes the echo stretch function in the sequence of E51, E52 and OFF. ES] or ES2 appears at the top right—hand comer of display when echo stretch is on. Em match 1 Echo stretch 2 Figure 2-7 Echo stretch Note1zThis function magnifies not only targets but also sea clutter and radar interference. For this reason he sure the controls tor adjustment of sea clutter and radar interference are properly adjusted before activating the echo stretch. Note 2: E52 is not available on short ranges. 2.14 Measuring the Range You can measure the range to a target three ways: by the range rings, by the cursor, and by the VRM (Variable Range Marker). Measuring range by range rings Count the number of rings between the center of the display and the target. Check the range ring interval and judge the distance of the echo from the inner edge of the nearest ring. To turn the rings on or off, see the menu opera— tion later(Chapter 3). Measuring range by cursor Operate the trackball to place the cursor inter- section on the inside edge of the target echo, The range to the target, as well as the bearing, appears at the bottom of the display. Measuring by VRM 1. Press either [VRM 1] or [VRM 2] key. The readout of the active marker is circum- scribed. -\., —\. EBL 345.6°R 23 O°R F igure 2-8 Display bottom, showing location of EBL and VRM readouts 2. Operate the trackball to place the outside edge of the VRM on the inside edge of the target. The trackball must be operated within five seconds after pressing a [VRM] key, oth- erwise the corresponding VRM cannot be operated. Press the [VRM] key again to ad- just the VRM. 3. Check the VRM readout at the bottom rightv hand comer of the display to find the range to the target. 4. To anchor the VRM, press the [VRM] key again. To erase the VRM. press and hold down the corresponding [VRM] key about two seconds. m“ \ s.o NM Range ring -—— 2.0 Interval ________ Target VRM1 Cursor VRMZ VHMI / range Cursor range ;— 4.0 NM 3.0 NM— VRM2 range F igure 2-9 Measuring range by the cursor and VRM Note: You can display the range readout oi the VRM and cursor in nautical miles, statute miles or kilometers. For details see the next chapter. 2.15 Measuring the Bearing There are two ways to measure the bearing to a target: by the cursor, and by the EBL (Electronic Bearing Line). Measuring bearing by cursor Operate the trackball to bisect the target with the cursor intersection. The bearing to the tar- get appears at the bottom of the display. Measuring by EBL l. Press the [EBL l] or [EBL 2] key. 2 Operate the trackball to bisect the target with the EBL. The trackball must be operated within five seconds after pressing an [EBL] key, other- wise the corresponding EBL cannot be oper- ated. Press the [EBL] key again to adjust the EBL. 3. Check the EBL readout at the bottom left- hand corner of the display to find the bear- ing to the target. 4. To anchor the EBL, press the corresponding [EBL] key again. To erase the EBL and its readout, press and hold down the corresponding [EBL] key about two seconds. 6,0 NM 1° Target Cursor EBL! EBLZ Cursor . EBL Beanng EBL‘I beanng _m . .. EBL! bearing _. 13541“ a won an NM Figure 2-10 How to measure bearing by EBL and cursor Note: The bearing readout for the EBL and the cursor can be displayed in relative or true bearing (true bearing requires heading sensor input). For North-up and Course-up display modes the bearing reference is always true. Tips for measuring bearing ' Bearing measurements of smaller targets are more accurate: the center of larger target pips is not as easily identified. 0 Bearings of stationary or slower moving tar- gets are more accurate than bearings of faster moving targets. 0 To minimize bearing errors keep echoes in the outer half of the picture by changing the range scale; angular difference becomes dif- ficult to resolve as a target approaches the center of the display. 2.16 Using the Offset EBL The offset EBL provides two functions: predict collision course of radar target and measure the range and the bearing between two targets. Predicting collision course 1. Operate the trackball to place the cursor on the center of the target, 2. Press the [EBL 1] key to turn on EBLl. 3. Press the [EBL OFFSET] key. EBLl‘s ori- gin shifts to cursor location. 4. After waiting several minutes, press the [EBL 1] key again. 5. Operate the trackball to pass EBLl through the center of the target. If the target tracks along the EBL towards the center of the display (your vessel’s position), the target may be on a collision course. To cancel the offset EBL, press the [EBL OFF- SET] key. EBLi ong‘n (infill MOI ' 1 01 larval) Target mom here. Onset EBL (EBLI) VRM Eeu a [firm—van, beams range Figure 2-11 Predicting collision course by using the ofi'set EBL Measuring range and bearing between two targets The procedure which follows shows how to measure the range and bearing between target “A” and target “B" in Figure 2-12. 1. Operate the trackball to place the cursor on the center of target “A". 2. Press the [EBL 1] key to turn on EBLl. 3. Press the [EBL OFFSET] key. EBLl’s ori~ gin shifts to cursor location. 4. Press the [EBL 1] key. 5. Operate the trackball to bisect target “B“ with EBL] . Check the EBLl readout to find the bearing between target “A" and target “B". 6. Press the [VRM 1] key to turn on VRM]. Operate the trackball to place the outside edge of VRM] on the inside edge of target B‘ Check the VRM readout to find the range between target “A" and target “B”. To cancel. press the [EBL OFFSET] key. 2,18 Zoom The zoom feature allows you to double the size of the area between your vessel and any loca- tion within the current range to lake a closer VRMI look at an area of interest. EBL1 1. Select location with the cursor. 2. Press and hold down the [SHIFT/ZOOM] key about two seconds ZOOM appears at the top right comer when the zoom function is on. EsL1—— m £VRM1 bearing rungs Figure 2-12 Measuring the range and bearing between two targets by usmg lhe afirel EBL cm“, 2.17 Shifting (off centering) the Picture Your vessel‘s position can be shifted up to 75% (3) Place curse, @ pms [Ft] m mum of the range in use to view the situation around where desired. our vessel without than in the ran e or size if targets. g g g F igurt 2-14 Zoomfunctian 1. Operate the trackball to set cursor where de- Note: Zoom is cancelled when range or sired. presentation mode is changed. 2, Press the [SHlFr/ZOOM] key. Cancelling zoom OFFCENTER appears at the mp right cor- Press the [SHIFT/ZOOM] key again. net of the display when the picture is shifted. ® Place cursor ® Press SHIFT ZOOM where desired. key lo aft center display. Figure 2-13 Shifting the picture Cancelling shifted picture Press the [SHIFT/ZOOM] key again. 3.5 Displaying Navigation Data Navigation data can be displayed at the screen bottom if this radar receives navigation input in DEC 1162 format. Navigation data include; 0 Position in latitude and longitude or Duran- C time difference 0 Range, bearing and time—to-go to both waypoint selected on the navigator and the CUFSOI' l Speed. (If the navigation input includes destination data, waypoint position is denoted on the radar display by a dashed ring.) To turn navigation data on or of! Press the [F 1] key if its function is set for DISP DATA (default setting), or select DATA DISP on the menu‘ Data ] Navigation Figure 3-6 Typical navigation data display 3.3 Suppressing Radar Interference Radar interference may occur when near another shipborne radar operating in the same frequency band as your radar. Its on-screen appearance is many bright dots either scattered at random or in the form of dotted lines extending from the center to the edge of the display. Figure 3—4 il- lustrates interference in the from of curved spokes. Interference effects are distinguishable form normal echoes because they do not ap- pear in the same place on successive rotations of the antenna. Figure 3—4 Radar interference Four levels of interference are available, includ- ing off: IRl. IRE. IR3 and OFF. lR3 provides the highest level of rejection. 1. Press the [MENU] key. 2. Select “INT REJECT" and press the [ACQ/ ENTER] key. 3. Select Icvel desired by pressing the [ACQ/ ENTER] key. 4. Press the [MENU] key to close the menu. IR and level selected appears at the bottom right corner on the display when the interference re- jection circuit is turned on. 3.4 Selecting Pulsewidth Pulsewidth is the transmission time of a single radar pulse, The longer the pulsewidth the greater the direction range capability. however range accuracy and range resolution are re- duced. Pulsewidth can be selected to short or long on the 1.5 and 3 nautical rnile ranges. 1. Press the [MENU] key. 2. Select “OTHER MENU” and press the [ACQ/ENTER] key. [OTHERS] Salsa item by T-tzall and press ENTER key. I Panel Dimmer I 2 3 I 2 . Mark Brill 1 2 3 I 3 . HD Mlflt I 2 a I 4 . Characters | 2 a I 5.Tra|lTone “- Multi 5 . Pulselenglh Shun m 7 . Noise Reina II On 5.1’rail Time I 305 1M 3M 6M |5M anM Cont 9 Tune m Manual 10 WPT Mark I. On it. EBL not fill True 12. vnM umt ||| tun sm 13. Wa|enman El 5M ton mm m srav Dtsp w m Eccmo Nav l5. Guard Mode II Out 15 Own Posltion TD w Cursor Fosr LIL lB Alm Sense LV _ Med Hig 19 Dead Sector E. On 20 Range I I I I! l I 2 I 4 I B I 16 I! I I ll‘ 21 am Haj II On 22 Sell Test 23 Instant-men Seiuu ‘Max, mtg: ls. FR-7112z72 Flt—7252 9a Figure 3-5 OTHER MENU 3. Select “6. Pulselength" by operating the trackball. 4. Select Short or Long by operating the trackball. 5. Press the [ACQ/ENTER] key. 6. Press the [MENU] key to close the menu. Dashed line: no alarm : zone IN ALARM OUT ALARM Figure 3-8 In and Our alarm Setting a guard zone Preparation 1. 3. 4. Press the [MENU] key, and then select “OTHER MENU,“ and press the [ACQ/EN- TER] key. Select “15. Guard Mode" and “In" (alarm on target entering zone) or “Out" (alarm on target exiting zone) by operating the trackball. Press the [AGO/ENTER] key. Press the [MENU] key to close the menu. To set a guard zone I. Mentally create the guard zone you want to set. For example‘ the guard zone shown in Figure 379 (l). Operate the trackball to set the cursor on point A or B. Press the [GUARD ALARM] key. “*G (IN)" or “*G (OUT)", with aster- isk blinking, appears at the top right-hand comer of the display. See Figure 3-9 (2). (The asterisk indicates the guard zone is partially set.) Operate the trackball to set the cursor on point C or D, See Figure 379 (3). Press the [GUARD ALARM] key. The as- terisk disappears. See Figure 3-9 (4). Asterisk mm Gull! . mm m A G um c i Dug cur-er new. at) (t) Mentally create (2) Drug cursor to the ward mm to set. top Is" corner of m and press [sumo ALARM]. G (N) (4) Guard zone (3) Dru cursor to mpleted. bottom right comer of zone and pm; [GUARD Aunw. Figure 3-9 How to set the guard zone Sllencing the audlble alarm Any radar targets violating the guard zone will trigger the audible alarm. You can silence the audible alarm by pressing the [GUARD ALARM] key. When this is done. “G(ACKN)" replaces “G(IN)." This means the alarm is ac— knowledged. Press the key again to reactivate the alarm. Cancelling the guard zone and alarm Press and hold down the [GUARD ALARM] key until the guard zone disappears. 3.6 Echo Trail You can show the movement of all radar tar- gets relative to your vessel in afterglow. This function is useful for alerting you to possible collision situations. Starting echo trail Press the [ECHO TRAIL] key. TRAIL, the echo trail time selected (on “OTHER MENU") and elapsed time appear at the top right—hand comer of the display. Then, afterglow starts extending from all targets. Figure 3-7 How the echo trail feature works Note: Trails are restarted when range or mode is changed or zoom or shift is turned on. Fixed time trail 1. When the elapsed time clock counts up to the trail time selected, the elapsed time dis» play freezes. 2. The oldest portions of trails are erased so only the latest trail, equal in length to the trail time selected. is shown. 3. Trail continues. For example, the one minute trail time is se- lected. When the elapsed time clock counts up to 60 seconds, the elapsed time display freezes at “60," but the latest one minute of trail is erased and then trail continues, Continuous trail The maximum continuous trail time is 99 min- utes and 59 seconds. When the elapsed time clock counts up to that time the elapsed time display is reset to zero and trail begins again. Cancelling echo trail Press the [ECHO TRAIL] key again. Changing trail attributes Trail gradation and trail time can be selected on the OTHER MENU. Table 3-1 Trailing attributes Trails can be shown in single or multiple gradations. Multiple paints trails getting thinner with time just like the afierglow on an analog PPI radar. Trail Tone Single Multiple Trails can be set for 15 sec., 305ec., lmin.. 3mm, 6min., 15min, 30min, or continuous. Trail Time 3.7 Guard Alarm The guard alarm allows the operator to set the desired range and hearing for a guard zone. When ships. islands, landmasses. etc. violate the guard zone an audible alarm sounds and the offending target blinks to call the operator’s at- tention. Selection of guard zone type The guard alarm can be set to sound when a target enters or exits the guard zone. You can select which type of guard alarm you want through the menu. lnalarm The alarm sounds on targets entering the guard zone. “G (IN)" appears at the top right-hand comer when the In alarm is selected. Out alarm The alarm sounds on targets exiting the guard zone. “G (OUT)“ appears at the top right~hand comer when the Out alarm is selected. 3.9 OTHER MENU Description The table below summarizes the OTHER MENU. Table 32 OTHER MENU Description Item Description 1. Panel Dimmer Selects level of panel backlight. 2. Mark Brill Selelcts brilliance of VRM. EBL, cursor, guard zone and WP mar s. 3. HD Mark Ems brilliance of heading marker. 4. Characters Selects brilliance of characters. 5. Trail Tone Selects gradations of echo trails 6. Pulselength Selects pulselength for 1.5 and 3 mile ranges. 7. Noise Reject [Select "On" to reject noise. 8. Trail Time Selects the trail time. 9. Tune l§elects automatic or manual tuningt To tune manually: 1. Select “Manual" by the trackball. 2. Press the [ACQ/ENTER] key to enable manual tuning. 3. While pressing and holding down the [GAIN] control, operate the trackball. (adjustment range; FR7062:1.0-l lt9V, FR7112/7252:l.0-32 V) 4. Press the [MENU] key to close the menu. “MANUAL” a pears at the top right-hand comer when manual tuning 15 In ef ect. 10, WPT Mark Selects "On" to display the waypoint mark. I l. EBL Ref Selects EBL reference for relative or true. 12. VRM Unit Selects distance unit of VRM and cursor for nm, km or sm. 13. Watchman Tums watchman on (set rest period) or off. 14. STBY Disp 15. Guard Mode Selects the condition at stand-by; display “STBY” or navigation data, or go ll'llO the economy mode. Selects condition which triggers guard alarm: in or out. 16. Own Position 17. Cursor Posi Displays the own shi ‘s position in lat/long or Loran C TDs. (Requires NAV data? Displays the cursor position in range/bearing or lat/long 18. Alm Sense LV Selects minimum echo strength which triggers guard alarm. 19, Dead Sector Select “On" to display the dead sector, which shows the area where the radar 15 no transnutted. 23. Installation Setup . Range Selects ranges to use. . 2nd Rej xSelect “On" to suppress second-trace echoes. 22. Self Test Tests keys, ROM and RAM, checks antenna rotation speed, and displays program no. For technicians. Notes on the guard alarm 0 The alarm is a useful anti-collision aid, but does not relieve the operator of the respon- sibility to also keep a visual lookout for pos sible collision situations. 0 When the radar range is less than one half of the guard zone range, the guard zone disap- pears and “G (IN)“ or “G (OUT)” appears in inverse Video. lfthis happens, raise range to re-drsplay the guard zone. 0 A target echo does not always mean a land- mass. reef, ships or surface objects but can imply returns from sea surface or precipita— tion. As the level ofthese returns varies with environment, the operator should properly adjust the A/C SEA. A/C RAIN and GAIN to be sure the alarm system does not over- look target echoes. 3.8 Watchman The watchman function periodically transmits the radar for one minute to check for targets in a guard zone. If it finds change in the zone from the prevrous transmission the audible alarm sounds and the radar transmits continuously. This feature is useful when you do not need the radur‘s function continuously but want to be alerted to radar targets in a specific area. Tx t-by . Tx St-by ????? .A. . fi/ igfl t_v._/ 1mm 5.100r 1mm 5.100r 20 min 20 min Watchman starts. Figure 3-10 How watchman works How watchman works When the time selected for the watchman rest period has elapsed, the radar automatically transmits for one minute to check the condition inside the guard zone. lfthere is no changev |he radar goes into standby (“WATCHMAN" ap- pears during stand-by.) If there is change, the radar sounds the audible alarm, cancels the watchman function and transmits continuously. Turning on watchman 1. Create a guard zone (usually 360 degrees) ' with the guard alarm function. Press the [MENU] keyi Select “OTHER MENU". Press the [AGO/ENTER] key. Select “13. Watchman”. Operate the trackball to select watchman rest period; 5 minutes, 10 minutes or 20 minutes. 7. Press the [ACQ/ENTER] key. 8. Press the [MENU] key to close the menu. “WATCHMAN” appears at the top of the screen, the radar transmits for one minute to check for targets inside the guard zone, and then the CRT shuts off and the radar goes into stand- by. oweww Cancelling watchman Go into the “OTHER MENU” , and set “13. Watchman" for off. Note 1 :Watchman can be used without a guard zone. Note 2:The alarm sounds just before the radar starts and stops transmitting. 4. FALSE ECHOES Occasionally false echoes appear on the screen at positions where there is no target. In some cases the effects can be reduced or eliminated. The operator should familiarize himself or her- self with the appearance and effects of these false echoes, so as not to confuse them with echoes from legitimate contacts 4.1 Multiple Echoes Multiple echoes occur when a short range, strong echo is received from a ship, bridge, or breakwater. A second, a third or more echoes may be observed on the display at double, triple or other multiples of the actual range of the tar- get as shown in Figure 4-1. Multiple reflection echoes can be reduced and often removed by decreasing the sensitivity or properly adjusting the A/C SEA. True echo Own ship Multiple echo Figure 4-l Multiple echoes 4.2 Side-lobe Echoes Every time the antenna rotates. some radiation escapes on each side of the beam—called “side-lobes." If a target exists where it can be detected by the side-lobes as well as the main-lobe, the side-lobe echoes may be repre- sented on both sides of the true echo at the same range, as shown in Figure 4-2. Side-lobes show usually only at short ranges and from strong tar- gets. They can be reduced through careful re» duction of the sensitivity or proper adjustment of the A/C SEA. M ai n-I obe True echo /- Side-lobe Spurious target Antenna Figure 4-2 Side-lobe echoes 3.10 Function Keys The function keys (F 1 and F2) work like the auto-dialing feature of a telephone, automati— cally executing the function assigned to them. The assigned function can be turned onloft' by pressing appropriate function key again. Default settings F]: Display NAV/ARPA data F2: Noise rejector How to program function keys 1. Press the [MENU] key. 2. Press [F1] or [F2] to open the function menu. [SETTING FOR F1 KNOB] 03st by T-ball a press sure Press MENU key to escape. Figure 3-10 Function menu 3. Select function desired. 4. Press the [ACQIENTER] key. 5. Press the [MENU] key to close the menu, 3.11 Adjusting Brilliance of Markers “2. Mark Brill” on the OTHER MENU adjusts the brilliance of markers such as the cursor. 3.12 Suppressing Second-Trace Echoes In certain situations, echoes from very distant targets may appear as false echoes (second-trace echoes) on the screen. This occurs when the re- turn echo is received one transmission cycle later, namely, after a next radar pulse has been transmitted. To suppress them, select “2nd Rej On” on the OTHER MENU. 3.13 Suppressing Nolse Electrical noise can be suppressed by hinting on “7. NOISE REJ" on the OTHER MENU. This function is available by pressing the [F2] key (default setting). 3.14 Outputting Target Position Target position data can be output to a plotter in IEC 1162 format. Press and hold down the [TLL] key to output the data. This function re- quires position data and heading signal. 3.15 Tuning the Receiver The radar receiver can be tuned automatically or manually, and the default tuning method is automatic. In automatic tuning, the radar is au— tomatically tuned everytime the radar is switched to “Tx” and the indication "TUNING" appears during tuning. The tuning bar at the top right-hand comer of the display shows tuning condition. Generally, the longer the tuning bar the better the tuning condition. however the length of the bar changes with number of radar echoes, range and other factors. Cunent tuning method is shown above the tuning bar as either “AUTO" or “MANUAL.” For how to tune the receiver manually. see "9. Tune" on page 3-7. Note: Automatic tuning may not work properly it own ship’s radar receives the radar wave 01 another ship’s radar. It this is the ease, the radar will be out of tune. Press the [STBYITX] key twice to retune. 5. MAINTENANCE 8: TROUBLESHOOTING- This chapter tells you how to keep your radar in good working order. Before reviewing this chapter please read the safety information which follows. ¢ WARNING Do not open the equipment. improper handling can result in electrical shock. Only qualified personnel should work Inside the equipment. RF HADIA‘HON HAZARD The radar antenna emits nigh lrequoncy radio radiation which can be harmful. particularly to your eyes. Never look directly into the antenna from a distance oi less than two ieet when the radar is in operation as you could injure the come of your eyes. Always make sure the radar ll set to stand—by or is turned elf belore staffing work on the antenna unit. 5.1 Preventive Maintenance Regular maintenance is important for good per- formance. Always keep the equipment as free as possible from dirt, dust, and water splashes. Make sure all screws securing the components are properly tightened. A maintenance program should be established and should at least include the items listed in Table 5-l. 5.2 Replacing the Fuse The fuse in the fuse holder at the back of the display unit protects the equipment against re- verse polarity of ship's mains, overcurrent, and equipment fault. If the fuse blows, find the cause before replacing it. Never use an incorrect fuse - serious damage to the equipment may result and void the warranty. FR-7062f7112 is shipped with a 15A fuse for 12V ship's mains. If the ship's mains is 24/32V. change the fuse to 10A (supplied). FR-7252 is supplied with a 10A fuse for 24/32 V ship's mains. line the proper it... Fuse rotting is shown on page 54, Use at among iuse can result In equipment demo. Table 5-1 Recommended maintenance emsmm Exposed nuts and bolts on antenna unit then call for repair. 6 months to 1 year Display unit connectors corrosion. Check for corroded or loosened nuts and bolts. If necessary, clean and repaint them thickly. Replace them if heavily corroded. Check for dirt and cracks on radiator surface. Thick dirt should be wiped off with soft cloth dampened with fresh water. If a crack is found. apply a slight amount of sealing compound or adhesive as a temporary remedy, Check for tight connection and Sealing compound may be used instead of paint. Apply a small amount of grease between nuts and bolts for easy removal in future. Do not use plastic solvent (acetone) for cleaning. If you need to remove ice from antenna unit, use a wooden hammer or plastic head hammer. Crack on the unit may cause water ingress, causing serious damages to inwmal circuits. If corroded, contact your dealer for replacement. 4.3 Indirect Echoes Indirect echoes may be returned from either a passing ship or relumed from a reflecting sur- face on your own ship, for example. a stack. In both cases. the echo will return from a legiti» mate contact to the antenna by the same indi- rect path, The echo will appear on the same bearing of the reflected surface. but at the same range as the direct echo. Figure 4-3 illustrates the effect of an indirect echo. Indirect echoes may be recognized as follows: ' they usually occur in a shadow sector ' they appear on the bearing of the obstruc- tion but at the range of the legitimate con- tact ' when plotted. their movements are usually abnormali and - their shapes may indicate they are not direct echoes. True Indirect tndtrect echo path echo \ \ x } Heading line True echo Indirect Indirect echo echo F igure 4 -5 Indira"! tdmex 4.4 Blind and Shadow Sectors Funnels, stacks, masts, or derricks in the path of antenna may reduce the intensity of the ra- dar beam. If the angle subtended at the antenna is more than a few degrees a blind sector may be produced Within the blind sector small tar— gets at Close range may not be detected while larger targets at much greater ranges may be detected, See Figure 4-4. Vessel taller than when Mast, etc. in path 00 radar beam Wharf Wharf Blind sector ' \ (no echo) SIZE 0! blind sector depends on target SIZE and range, Figure 4-4 Blind and shadow rat-mm '5.4 Self Test The self test facility checks the keyboard. ROM and RAM for proper operation. 1. Press the [MENU] key. 2. Select "OTHER MENU". 3. Select “22. Self Test" and press the [ACQ/ ENTER] key. The following display appears. [SOllTut] Kay test: Pres: Sam key and quack Oil-56m" indication lights. (Fm MENU lav OTHERS mm.) Figure 5-I Self rest screen 4. The ROM and RAM are automatically checked. lf NG (No Good) appears to the right of ROM or RAM indication, contact your dealer for advice. ARP- lOTEST results appear only when optional ARP-IO board is mounted. 5. To check the keyboard. press any key ex- cept [ACQ/ENTER] and [POWER] keys. The pressed key‘s on—screen location lights in black while the key is presserL if the key is operating properly. 6. Press the [ACQ/EN'I‘ER] key to check the display circuit. The following pattern should appear. Figure 5—2 Test pattern 7. Press the [MENU] key to back to the Self Test menu. 8. To escape from the test, press the [MENU] key. 5.5 Life Expectancy of Magnetron The following table shows the life expectancy of the magnetrons. Table 5-3 Life expectancy of magnetrons Llfe expectancy Type E3560 000439-050 MGS389 000-135-146 MGSZ4l 0004004136 E3566 — Ml458 000140344 MGS436 000-140—762 2,000 - 3,000 hours FR-7l 12 (Including stand-by) 5.3 Troubleshooting Table 5~2 contains simple troubleshooting pro cedures which you can follow to try to restore normal operation. If you cannot restore normal operation, do not attempt to check inside any unit of the radar system. Any repair work is best left to a qualified technician. Table 5-2 Troubleshooting table ' try adjusting the control panel backlighting on the OTHERS MENU - battery may have discharged. - check power fuse at rear of display unit you pressed the [POWER] key to turn on the radar the control panel does not light - try adjusting the brilliance. nothing appears on the display or display contrast is poor characters are - request service. distorted the antenna does not ° the problem may be in antenna unit. rotate Request service. characters and - have a qualified technician check the indications are set abnormal the radar has warmed up and you pressed the [STBY/ TX] key to transmit neither noise nor - check signal cable for damage. targets appear (indications and markers do) you have adjusted the gain with A/C RAW and A/C SEA off neither indications - check the signal cable for damage. nor markers appear (noise and targets do) the sweep (radial line - the problem may be in the antenna sweeping around the unit. Request service. there is no change in display) is not - request service. sensitivity synchronized with a key is pressed nothing happens - key may be faulty. Request service. antenna rotation 6. ARP-10 (OPTION) & WARNING No one navigational aid should be relied upon for the safety of vessel and crew. The navigator has the responsibility to check all aids available to contlrm position. Electronic aids are not a substitute for basic navigational principles and common sense. - This auto plotter automatically tracks an automatically or manually acquired radar target and calculates its course and speed, indicating them by a vector. Since the data generated by the auto plotter are based on what radar targets are selected, the radar must always be optimally tuned for use with the auto plotter. to ensure required targets will not be lost or unwanted targets such as sea returns and noise will not be acquired and tracked, - A target does not always mean a land- mass, reel. ships or other surface vessels but can imply returns from sea surface and clutter. As the level ol clutter changes with environment, the operator should properly adjust the A/C SEA. A/C RAIN and GAIN controls to be sure target echoes are not eliminated from the radar screen. The plotting accuracy and response of this auto plotter meets lMO standards. Tracking accuracy is affected by the following: . Tracking accuracy is affected by course change. One to two minutes is required to restore vectors to full accuracy after an abrupt course change. (The actual amount depends on gyrocompass specifications.) 0 The amount of tracking delay is inversely proportional to the relative speed of the target. Delay is on the order of 15—30 seconds for high relative speed; 30—60 seconds for low relative speed. Display accuracy is affected by the following: . Echo intensity 0 Radar transmission pulsewidth - Radar bearing error - Gyrocompass error - Course change (own ship or target) 6.3 Activating the Auto Plotter To activate the ARP-lO, follow the steps shown below. 1, Adjust the GAIN, A/C SEA and NC RAIN controls for proper radar picture Press the [MENU] key to open the main menu. Operate the trackball to select “ARP-IO MENU". | ARP MENU 1 Select “mm by T-ball and press ENTER key. I, Display on II 2 . All Camet 3 . Vector Ref Re! I. 4 . Vector Length nos 1M 8M 6M I5M III Iliss 303 1M 2M 3M 6M lIo.5 mm an arm 50m Gun - 1M 2M 3M 4M 5M BM II On . History 4. Press the [ACQ/ENTER] key. The menu shown in Figure 6—1 appears. Figure 6-1 ARP menu 5. Operate the trackball to select the menu item “1. Display". 6‘ Operate the trackball to select “On". 7A Press the [ACQIENTER] key, 8. Press the [MENU] key to close the menu. Target is being tracked but Is not selected for data readout Threatening Target FuII “gel Mark Target selected for data reading (large circle) Auto Acquisition Area Lost Target van emu awn ”new mus vscmn we?“ ME 37.5? mum an arm mu 1m ARPA Data Area Figure 6-2 ARP display 6.1 General The Auto Plotter ARP-IO is an optional circuit board which is accommodated in the display unit of the FR—7062 radar. The Auto Plotter pemiits manual or automatic acquisition and automatic tracking of up to 10 radar targets. An internal microprocessor cal- culate target data such as speed and course and displays the results in alphanumeric and by vee— tors. To ensure the reliability of the displayed target data, the radar must be properly adjusted for minimum sea returns and noise. Principal speelfieatlons Acquisition and tracking 0 Acquisition of up to 10 targets between 0.2 and 16 nm. 0 Automatic tracking of up to 10 acquired tar— gets between 0.1 and 16 nm. Vectors Vector length: 30 st 1. 3, 6, 15, 30 min. Orientation: True velocity or relative velocity Past positions 5 past positions at intervals of 15, 30 s, l, 2, 3, 6 min. Alarm Visual and audible alarms against targets vio— lating CPA/T CPA limits; visual alann against lost targets. Target discrimination A target measuring about 800 m or more in the radial or circumferential direction is regarded as a landmass and not acquired or tracked. Ech- oes smaller than about 800 m are regarded as true targets. 6.2 Keys Used for Auto Plotter The Auto plotter utilizes the following touchpad keys. Given below is a brief description of these keys. MENU: Displays/Eraser» the main menu. SELECT/CANCEL: (Long press) Terminates plotting of the target selected with the cursor. (Short press) Displays the data of target selected with the cursor. ACQ/ENTER: Acquires the target selected with the cursor. ARP-10 MENU operation The ARP-lO MENU includes the followings: Display: Turns on/off the plot symbols, past positions and target data. All Cancel: Cancels the tracking of all targets. Vector Ref: Selects relative vector or true vectors. Vector Length: mine. History: Selects past position plot interval. CPA Set: Selects CPA alarm limit. When a target is pre— dicted to come within this limit. an aural alarm sounds and at the same time the corresponding target symbol changes to a blinking triangle. Note: If the preset CPA limit is set at OFF. 3 target which is on collision course will not pro- duce an alarm. TCPA Set: Selects TCPA alarm limit. Auto ACQ: Tums on/off Auto Acquisition Area. 6.6 Terminating Tracking of Targets When the ARP-lt) has acquired 10 targets, no more acquisition occurs unless targets are lost. Should this happen, cancel tracking of indi- vidual targets or all targets by the procedure described below. Individual targets Place the cursor (+) on the target which you do not want to be tracked any longer by operating the trackball and press and hold down the [SE- LECT/CANCEL] key. All targets Tracking of all targets can be canceled from the ARP- lO MENU. 1. Open the “ARP-lO MENU“. 2. Select “2.All Cancel". 3. Press the [ACQIENTER] key. 6.7 Displaying Target Data The ARP— 10 calculates motion trends (range, bearing, course, speed, CPA and TCPA) of all targets being tracked at the ARPA Data area. To turn ARPA data on: 1. Press the [MENU] key. 2. Select the “DISP DATA". 3. Press the [ACQ/ENTER] key to select the message for “ARP” or “NAV and ARP". 4. Press the [AGO/ENTER] key to set. 5. Press the [MENU] key to close the menu. At the speed under 5 kts the target data Is displayed with a delay because of filtration. Place the cursor on a wanted target and press the [SELECT/CANCEL] key. Data on the se- lected target is displayed at the bottom of the screen. The symbol of the selected target gets twice as large as the normal circle. The data in— cludes the following; RNGIBRG (Range/Bearing): Range and bear- ing from own ship to the last-plotted or selected target position with suffix “T” (Tme) or “M” (Magnetic). For tme bearings suffix “T" is used in case of gyrocompass input and suffix “M” is used in case of magnetic compass input. COURSFJSPEED (Course/Speed): Course and speed are displayed for the last-plotted or selected target with suffix "1'" (True) or “M" (Magnetic). For true beatings suffix “T" is used in case of gyrocompass input and suffix “M" is used in case of magnetic compass input. CPA (Closest Point of Approach): The clos- est range a target will approach to own ship. Do not confuse it with the operator preset CPA alarm limit. TCPA: The time to CPA measured with present speeds of own ship and the targets. Both CPA and TCPA are automatically calculated. When a target ship has passed clear of own ship, the CPA is displayed and the TCPA appears as “**."". TCPA is counted up to 99.9 min. and beyond this it is indicated as TCPA>99.9 min. Deactivating the auto plotter 1. Press the [MENU] key. 2. Open the “ARP-lO MENU". 3. Operate the trackball to select the “1. Dis— play”. 4. Operate the trackball to select “Off". 5. Press the {ACQ/ENTER] key. 6. Press the [MENU] key to close the menu. 6.4 Manual Acquisition Follow the steps below to manually acquire a target. Up to 10 targets can be manually ac- quired. 1. Place the cursor (+) on a target of interest by operating the trackball. 2. Press the [ACQ/ENTER] key. The plot symbol changes its shape according to the status as below. A vector appears in about one minute after acquisition indicating the target's motion trend. lt'the target is consistently detected (or three minutes. the plot symbol changes to it solid mark. liacquisition fails, the target symbol blinks and dixappears shortly. j SQUARE (dotted) Immediately after acquisition - Plot symbol shown in broken lines. : {SQUARE (dotted with a vector) One minute after acquisition — Vector still unre- liable. o/ CIRCLE (Solid with a vector) 3 minutes after acquisition - Plot symbol changes to a solid circle indicating the stable tracking condition. LARGE CIRCLE The plot symbol of a target being tracked be- comes twice as large as the normal symbol when the target is selected for data reading. Note 1: The target to be acquired should be within 0.2 to 18 nm from own ship and not ob- scured by sea or rain clutter. Note 2: When you want to acquire 11th target, cancel tracking one at less important targets. Note 3: When auto acquisition mode (Auto ACQ) is on, up to five targets can be acquired. _ For details, see 6.5 Automatic Acquision. & WARNING When a tracked target nears another tracked target, the targets may be “swapped." When two targets come close to each other, one of the two can become a “lost target.“ Should this happen, reacquisition of the "lost target“ is required after the two tar-ets have separated. 6.5 Automatic Acquisition The ARP—IO can acquire up to five targets au- tomatically by setting the Auto Acquisition area predefined in the system. If Auto ACQ is se- lected after more than five targets have been manually acquired, only the remaining capac- ity of targets can be automatically are acquired. For example; when seven targets acquired manually, then the Auto ACQ is switched on, only three targets can be acquire automatically. When five targets have been automatically aC< quired. “AUTO TARGET FULL" message ap— pears at top left comer seven on the display. Setting auto acquisition area Auto acquisition area is predefined between 2.0 and 2.5 nm in range and 45“ on either side of the heading maker in bearing. Ifa target comes into this area. it is acquired automatically. Figure 64 Auto acquisition area Follow the steps below to activate the auto ac- quisition area. 1. Open the “ARP‘IO MENU”. 2. Select “8. Auto ACQ" by operating the trackball. 3. Operate the trackball to select “On”. 4. Press the [ACQ/ENTER] key. 5. Press the [MENU] key to close the menu. F N FR-7062 SPECIFICATIONS OF MARINE RADAR 1 GENERAL (l) Indication System FR-7062 PPl Daylight display, raster scan, 8 tones in monochrome (2) Rang , Pulselength (PI_,L& Pulse Repetition Rat: (PRR) ‘550 Hz on 48 nm mnge or more (3) Range Resolution (4) Baring Discrimination (5) Minimum Range (6) Bearing Accuracy (7) Range Ring Accuracy 2. SCANNER UNIT (1) Radiator (2) Polarization (3) Antenna Rotation Speed (4) Radiator lmgth (5) Horizontal Beamwidth (6) Vertical Beamwidth (7) Sidelohe Attenuation X'N 12A: X'N13A: 3A TRANSCEIVER MODULE (1) Frequency (2) Modulation (3) Peak Output Power (4) Modulator (5) lntmmedint: Frequency Bfitcr than 20 m )CNlZA:wifl1in 19°, XN13A: within 12" 25 m (0.25 NM range) Within 1° 0.9 % offing: or 8 m, whichever is the greater Slotted waveguide array Horizontal 24 rpm nominal: XN12A (100 kl max‘), XNISA (100 kt max.) 48 rpm nominal: XN12A (70kImax.) XNIZAzl20 cm, XNI3A: 180 cm XNIZA: less than 19°, XN13A: less than 1.2° 22° Within £20° ofmain-lobe: his than -24 dB Outside i20' ofmain—lobe: less than -30 dB Within ézll)e ofmain-lobc: lass than -24 dB Outside th' of main-lobe: less than -30 dB 9410 NH-[ztSOMl-lz (X band) FUN 6 kW PET Switching Method 60 MHz 6.3 Mode and Length of Vectors True or relative vector Target vectors are displayed in relative or true mode. Own ship does not have a vector in rela- tive mode. Vector length From the ARP-lO MENU, Vector Length can be set to 30 seconds, 1. 3, 6. 15 or 30 minutes and the selected vector time is indicated on the screen. The vector tip shows an estimated position of the target after the selected vector time elapses. It can be valuable to extend the vector length to evaluate the risk of collision with any target. Past position display The ARP- 10 displays equally time-spaced dots (maximum 5 dots) marking the past positions of any targets being tracked. If a target changes its speed, the spacing will be uneven. If it changes course, its plotted course will not be a straight line in TM mode. Operational warnings There are two main situations which cause the ARP-lO to trigger visual and audible alarms: o CPA/TCPA alarm 0 Lost target alarm CPA/TCPA alarm Visual and audible alarms are generated when the predicted CPA and TCPA of any target be- come less than their preset limits. The audible alarm continues for 10 seconds. The ARPBWC>BWR Loran time difi'crencc: RMA>GM>GTD Watm’ depth: DPPDBDDBK>DBS Water tempemmre: MTW>IVDA Time: ZDA XTE: RMB>XTF>APB '1: calculate by magnetic drifi. (7) Output Dam MAOISSNeL 115/210), RS-422 TLL (target dam) and RSD 5. EMBIRONMENTAL CONDITION (1) Ambient Temperature Scanner Unit: -25°C to +70°C Display Unit: 45°C to +55°C (2) Rclativc Humidity 95 % or 165 at +40°C (3) Waterproofing Sumner Unit [PXG Display Unit Chassis: not specified Panel: [PX4 61 POWER SUPPLY & POWER CONSUMPTION (1) Power Supply 12/24/32 vnc (10.3 00 41.6 VDC) (2) Voltage and Current )(N12A(24rpm): 12 VDC/7.5A, 24VDC/3,8A, 32VDC/218A XN12A(48rpm): 12 VDC/8.8A, 24VDC/4.4A, 32VDC/3.3A XNISMZMpm): lZVDC/IOA, 24VDC/5A, 32VDC/3.8A (3) Power Consumption XN12A(24rpm): 70 w to 90 W(100 1a) XN12A(481-pm): 85 w to 105 woo 1a) XN13A(24rpm): so w m 120 W(100 1a) 7. DIMENSIONS AND MASS See the Outline Drawings 8. COATING COLOR (1) Display Unit Panel: N30 Chassis: 215GY5/l.5 (2) Scanner Unit N95 E H B u E Q FIR-7082 (6) Tuning Automatic or manual (for manual, selea manual tuning on menu and tune by trackball) (7) Receiver Front End WC (Microwave IC) (8) Bandwidth Tx pulselength 0408 us and 0.3 us: 25 MHz Tx pulselength 0.x us: 3 MHz (9) Duplexer Circulamr with diode limim 4. DISPLAY UNIT (1) Indication System PPl Daylight display, raster scan, 8 colors (2) Picture Tube 12 inch rectangular (184 mm x 245 mm) monochrome CRT effectivedisplay areal-note than 180 mm (4) Markers Heading Line, Bearing Scale, Range Rings, Variable Range Marker (VRMl, VRMZ), Electronic Bearing Line (EBLI, EBLZ), Tuning Bar, Cursor, Parallel Cursor, Alarm Zone, Waypoint Mark (navigation input required), North Mark (heading sensor input required) (5) Alphanumeric Indications Range, Range Ring Interval, Pulselength(SP, MP, LP), Display Mode(HU,CU,NU,TM), Interference RejectionflRlfllZJRB), Variable Range MarkerW'RMl, VRMZ), Electronic Bearing Line (EBLl, EBL2), Automatic A/c SEA (A/c AUTO), Stand—by (ST-BY), Radar Alarm (WEN), G(0UT), G(ACKN)), Echo Stretch (E51, E82), Cursor Range, Bearing or LIL Position, Echo Tailing (TRAIL), Trailing Time, Trailing Elapsed Time, Navigation DMnaviprtim input required), Heading (HDC, beading sensor input required) (6) Input Dara NMEA0183 (Ver.115/2.0), current loop Own ship’s position: GGA>RMC>RMA>GLL (GLL is available Ver. 1.5 only) Speed: RM(>RMA>VTG>VHW Heading (Tme): l-u)1>l~mG“>rmM“>VHW>VHw" Heading (Magnetio): HDM>HDG">HDT">VHW>VHW" Course (True): RMC>RMA>VTG Course (Magi-en's): VTG>RMC>RMA FHRQNO FR-7112 SPECIFICATIONS OF MARINE RADAR FR -7 1 1 2 11 GENERAL (1) Indication System PPI Daylight display, raster scan, 8 tones in monochrome (2) Range, Pulselenfim (PL) & Pulse Repetition Rate (PRR) Range (nautical miles) “550 Hz on 48 rim range or more (3) Range Resolution Better than 20 m (4) Bearing Discrimination XNIZA: within 1.9“, XN13A: within 12" (5) Minimum Range 25 m (0.25 NM range) (6) Bearing Accuracy Within 1° (7) Range Ring Accuracy 0.9 % of range or 8 m, whichever is the greater 2 SCANNER UNIT (1) Radiator SIotted waveguide array (2) Polanmtion Horizontal (3) Antenna Rotation Spcai 24 rpm nominal: XNIZA (100 kt max ). XNIZA (100 kt max) 48 rpm nominal XNIZA (70 kt mu ) (4) Radiator Length XNIZA:120 cm, X'NIBA: 180 cm (5) Horizontal Beamwidth X'NIZA: less than 19°, XN13A: less than 1 2° (6) Vertical Bearnwidth 22° (7) Sidclobc Attenuation XN 12A: Within i20'7 ofmain—Iobe: less than -24 dB Outside 120“ of main-lobe: less than -30 dB XN 13A: Within 110° ofmain-Iobe: less than -24 dB Outside i] 0° of main-lobe: less than -30 dB 3. TRANSCEIVER MODULE (1) Frequency 9410 MHz tBOMHz (X band) (2) Modulation PON (3) Pnk Output Power 10 kW (4) Modulator FET Switching Method (5) [ntennediate Frequency 60 MHz 9. COMPASS SAFE DISTANCE (l) (2) Display Unit Standard: 141 m Steefiug: 0.8 in Scanner Unit Standard: 110 m Steering: 0.8 rn 10. ARP MODULE (OPTION) (1) (2) (3) (4) (5) (6) (7) (8) (9) Acquisition Range 0.2 to 16 NM Tracking Range 041 to 16 NM Maximum Number ofTarget lO Acquisition Time Within 5 sec (scanner minim: 24 rpm) Alarm Timing Lost target (blink mark, oollisiun alert) Vector Length 30 sec; 1, 3, 6 or 15 min (selected onmeuu) Plottinglmerval 30 see; 1,2, 3,4or5min(scleaedonmenu) Numeric Data Indication Distance, Bearing, Course, Speed, CPA, TCPA Acquisition Available Speed 100 kt relative FUR N Waypointfllange, Bearing): RMB>BWC>BWR Lomn time difi‘erence: RMA>GLC>GTD Water depth: DPT>DBT>DBK>DBS Water temperature: MTW>MDA Time: ZDA XTE: RMB>XTE>APB ‘l: calculale hymagneticdrifi. (7) Output Data NMEA0183(Ver. 1 5/20), RS-422 TLL (unset data) and RSD 5. EMBIRONMENTAL CONDITION (1) Ambiem Temperature Scanner Unit: -25°C to +70°C Display Unit: -15°C to +55°C (2) Relative Humidity 95 % or loss at +40°C (3) Waterproofing Scanner Unit IPXG Display Unit Chassis: not specified Panel: IPX4 6. POWER SUPPLY 8. POWER CONSUMPTION (1) Power Supply 12/24/32 VDC (10.8 to 41.6 VDC) (2) Voltage and Current XN12A(24rpm): 12 VDC/8.3A, 24VDC/4.2A, 32VDC/3.lA XN12A(48rpm): 12 VDC/lOA, 24VDC/5A, 32VDC/3.8A XN13A(241pm); 12 VDC/10.8A, 24VDCIS.4A, 32VDC/4JA (3) Power Consumption XN12A(24rpm): 85 w to 100 waoo kt) XNlZA(48rpm): 95 w to 120 W(70 1a) XN13A(24rpm): 90 w w 130 W(100 1a) 7. DIMENSIONS AND MASS See the Outline Drawings er COATING COLOR (1) Display Unit Panel: N3.0 Chgsis: 2.5GY5/l.5 (2) Scanner Unit N95 R NO -11 (6) Timing Automatic or manual (for manual, select manual tuning on menu and tune by trackball) (7) Receiver Front End MIC (Microwave IC) (8) Bandwidth Tx pulselength 0.08 us and 03 us: 25 MHz Tx pulselength 0.8 in: 3 MHz (9) Duplexer Circulator with diode limiter 4. DISPLAY UNIT (1) Indication System Pl’l Daylight display, raster scan, 8 colors (2) Picture Tube 12 inch rectangular (184 mm x 245 mm) monochrome CRT effective display area more than 180 mm (3) Ran_e, ‘ , _e Interval, Number of' mug—pm (4) Markers Heading Line, Bearing Srale, Range Rings, Variable Range Marker (VRM 1, VRM2), Electronic Bearing Line (EBLI, EBLZ), Tuning Bar, Cursor, Parallel Cursor, Alarm Zone, Waypoint Mark (navigation input required), North Mark (heading sensor input required) (5) Alphanumeric Indications Range, Range Ring Interval, PulselengtluSP, MP, LP), Display Mode(HU, CU, NU, TM), Interference RejectionflRl, l'RZ, IR3), Variable Range Marker(VRMl, VRMZ), Electronic Bearing Line (EBLl, EBLZ), Automatic A/C SEA (AIC AUTO), Stand-by (ST-BY), Radar Alarm (G(IN), G(0UT). G(ACKN)), Echo Sir-aah (E51, E52), Cursor Range, Bearing or LIL Position, Echo Tailing (TRAIL), Trailing Time, Trailing Elapsed Time, Navigation Dawnavigadon input required), Heading (HDC, heading sensor input required) (6) Input Data NMEA0183 (Ver.l.5/Z.0), current loop Own ship’s position: GGA>RM('>RMA>GLL (GLL is available Ver.l,5 only) Speed: RMC>RMA>VTG>VHW Heading (Tme): l-fl)T>l-lDG">HDM°'>VHW>VHW" Heading (Magnetic): l-fl)M>HI)G">l-H)T">VHW>VHW" Course (True): RMC>RMA>VTG Course (Magmic): VTG>RMC>RMA FUR N SPECIFICATIONS OF MARINE RADAR 1. GENERAL (l) Indication System (2) FR-7252 PPI Dayliylt display, raster scan, 8 tones in monochrome ‘550 Hz an 48 nm In 72 nm range, or 500 Hz an 96 nm range (3) Range Resolution (4) Bearing Discrimination (5) Minimum Range (6) Bearing Accuracy (7) Range Ring Accuracy 2. SCANNER UNIT (1) Radiator (2) Polarization (3) Antenna Rotation Speed (4) Radiatorlength (5) Horizontal Benmwidth (6) Vertical Bamwidth (7) SidelobeAumuation XNIZA: XNI3A: 3. TRANSCEIVER MODULE (1) Frequency (2) Modulation (3) PeakOmput Power (4) Modiflawr (5) lntemtediate Frequency BenetthanZOm XNIZA: within 1.9“, XNlSA: within 1.2“ 25 m (025 NM range) Within I“ 049 %ofmnge or 8 m, Whichever is thegreater Slotted waveguidearmy Horizontal 24 rpm nominal: XNlZA (100 kt max), XN13A (100 kt max.) 48 rpm nominal: XNIZA (70 kt max.) XNIZAZIZO cm, XN13A: 180 cm XINIZA: less than 19“, “13A: less than 12° 22° Within £0“ ofmain—lobe: less than -24 dB Omide =l:20' of main»lobe: 155 than -30 dB Within $10° ofmain-lobe: less than -24 dB Outside ill)“ afmain-lobe: less than ~30 dB 9410 MHz sown (x band) PON 25 kW FET Switching Method so MHz FR-7252 EURQNQ FR-7112 9. COMPASS SAFE DISTANCE (1) Display Unit Standard: 1.1 111 Steering: 0.8 m (2) Scanner Unit Standard: 1.0 m Steering: 048 m 10. ARP MODULE (OPTION) (1) Aoquisitioqunge 0.200 l6NM (2) Tracking Range 0.1 to IGNM (3) Maximum Number of Targa 10 (4) Acquisition Time Within 5 sec (scanner mmtiou: 24 rpm) (5) Alarm Timing Lost target (blink mark, collision alert) (6) Vector Length 30 sec; 1, 3, 6 or 15 min (selecmd on m) (7) Plotting Interval 30 sec; 1, 2, 3, 4 or 5 min (selected on menu) (8) Numeric Dana Indication Distance, Bearing, Course, Speed, CPA, TCPA (9) Acquisition Available Spud 100 kt relative Waypoim(Range, Bearing): RMB>BWC>BWR Lorarl time difference: Water depth: Water temperature: Time: XTE: (7) Output Data RMA>GLC>GTD DPT>DM>DBK>DBS MTW>MDA ZDA RMB>XTF>APB ‘I: calculate by magnetic drifi. NMEA0183(Veril.5/2.0), 115-422 TLL (targa data) and RSD 5. EMBIRONMENTAL CONDITION (1) Ambient Temperature (2) Relative Humidity (3) Waterproofing Scanner Unit Display Unit Scanner Unit: -25°C to +70°C Display Unit: 45°C to +55°c 95 % or 1&5 at +40°C fl’X6 Chassis: not specified Panel: IPX4 6. POWER SUPPLY & POWER CONSUMPTION (1) Power Supply (2) Voltage and Current (3) Power Consumptian 7. DIMENSIONS AND MASS a. comma COLOR (1) Display Unit (2) Scanner Unit 24/32 VDC (216 to 41.6 VDC) X'N 12A(24rpn1): 24VDC/5.2A, 32VDC/3.9A XN12A(48rpm): 24VDC/5,8A, 32VDC/4,4A XN13A(24rpm): 24VDC/6.3A, 32VDC/4,7A XN]2A(24rpm): 105 W to 125 W(100 kt) XN12A(48rpm): 120 W to 140 W(70 kt) JCN13A(24rpm): 115 W m 150 W(100 kt) See the Outline Drawing Panel: N3.0 Chassis: 2.SGY5/I.5 N95 FR-7252 F U N FR-7252 (6) Tuning Automatic or manual (for manual, select manual tuning on menu and tune by trackball) (7) Receiver Front End MIC (Microwave 1C) (8) Bandwidth Tx pulselength 0408 115 and 0.3 us: 25 MHz Tx pulselmyh 0,8 us: 3 lVfl-lz (9) Duplexer Circulator with diode limiter 4. DISPLAY UNIT (1) Indication System PPI Daylight display, raster scan, 8 colors (2) Picture Tube 12 inch rectangular (184 mm x 245 mm) monochrome CRT effective displayarearnoredian 180mm (3) Ran_e, Ran_e Interval, Number of ‘ ' 0.75 3 4 6 8 24 36 48 0,25 ..550 l 2 2 312 12 Range (NM) 0.125 Ring Interval (NM) 0.0625 0,125 0. 2 4 (4) Markers Heading Line, Bearing Scale, Range Rings, Number of Rings Variable Range Marker (VRMl, VRMZ), Electronic Bearing Line (EBLl, EBLZ), Tuning Bar, Cursor, Parallel Cursor, Alarm Zone, Waypoint Mark (navigation input required), North Mark (heading sensor input required) (5) Alphanumeric Indications Range, Range Ring Interval, Pulselmgth(SP, W, LP), Display Mode(H'U, CU, NU, TM), Interference RejectionaRl, 1R2, IRS), Variable Range MarkerWRMl, VRMZ), Electronic Bearing Line (EBLl, EBLZ), Automatic NC SEA (A/C AUTO), Stand-by (ST-BY), Radar Alarm (GflN), G(0Ul'), G(ACKN)), Echo Smash (ESI, E52), Cursor Range, Bearing or III. Position, Echo Tailing (TRAIL), Trailing Time, Trailing Elapsed Time, Navigation Data(navigatiun input required), M. 96 zflfl 24 Heading (HDC, heading sensor input required) (6) Input Data NMEA0183 (Ver.l.5l210), currenr loop Own ship's position: GGA>RMC>RMA>GLL (GLL is available Ver. 1.5 only) Speed: RMC>RMA>VTG>VHW Heading (rme); I-ID'l>I-l])G">I-1DM“>VHW>VHW" Heading (Magnetic): HDM>HDG">HDT">VHW>VHW" Course (True): RMC>RMA>VTG Course (Magnetic): VTG>RM(>RMA cn in INDEX “ A N A/C RAIN 2-5 . A A/C SEA 24 navtgauon data 3-3 acquisition area 6»2 north marker 26 alarm 34 north-up 2-6 auto plotter 6—2 0 B off center 2-9 bearing 2-7 P blind sector 4—2 pulselength 3—2 C R course-up 26 range 2-4 cursor 2-7 radar interference 3»2 CPA 6-2 S ' E SART iii EBL 2-7 second-trace echoes 3-8 EBL offset 2-8 self test 53 echo trail 34 sensitivity 2—4 echo stretch 2-6 shadow sectors 4-2 echonomy mode 2-3 side-lobe echoes 4»1 F stand-by 2-3 function keys 3-8 T fuse 5—1 target data 6—5 G target position 3~8 TCPA 6-5 guard alarm 3—4 guard bone 3_5 transmitting 2»3 nonbleshooting 5—2 H true motion 2-6 head-up 2-6 V heading marker 2-6 I vector 66 index lines 3—1 W indirect echoes 4-2 wmhma" 36 M zoom 3-6 magnetron 5-3 multiple echoes 4-1 E s! B u N O FR-7252 9, COMPASS SAFE DISTANCE (1) Display Unit Standard: 1.1 m Sheeting: 03 m (2) Scanner Unit Standard: 1.7 m Smering: 1,3 in 10. ARP MODULE (OPTION) (1) Acquisition Range 0.210 16NM (2) TracldngRange 0.1m16NM (3) Maximum Number of Target 10 (4) Acquisition Time Within 5 we (saw rotation: 24 rpm) (5) Alarm Timing Lost target (blink mark, collision alen) (6) VectorLengdi 30sec; I,3,60r 15min(selectcdonmenu) (7) Plotting Interval 30 sec; 1, 2, 3, 4 or5 min (selected on menu) (8) Numeric Data Indication Distance, Bearing, Course, Speed, CPA, TCPA (9) Acquisition Available Speed 100 kt relative
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