304202P003 Rev. C October 2008 SRT X-BAND TRANSCEIVER RADAR SYSTEMS TECHNICAL MANUAL CONSILIUM SELESMAR s.r.l. Head Office & Plant Via Romita, 26 - 50020 Montagnana V. P. (Florence) Italy Tel.: +39/0571/68121 Telefax +39/0571/670798 www.consilium.
TECHNICAL MANUAL October 2008 SRT X-BAND TRANSCEIVER RADAR SYSTEMS REV.
SRT X-BAND RADAR SYSTEMS FOREWORD APPLICATION FOR MANUAL REVISIONS Upon receipt of this manual, please fill in the necessary data. It is important that the addressee be the end user so that the operating personnel will receive all revisions to the manual EQUIPMENT NAME ............................................................................................. SERIAL No...................................... MODEL ...................................................... MANUAL TITLE .......................
SRT X-BAND RADAR SYSTEMS FOREWORD RECORD OF CHANGES RCS CODE/REV. INDEX PURPOSE OF THE CHANGE DATE CHANGE REQUESTED BY Revision A NOV 2007 First Emission Revision B April 2008 Add the EC CERTIFICATE Request for Changes 014/08 Revision C October 2008 Replace the EC CERTIFICATE Request for Changes 044/08 304202P003 B Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 C Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 D Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 E Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 F Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 G Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 H Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 I Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 J Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 K Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD 304202P003 L Rev.
SRT X-BAND RADAR SYSTEMS FOREWORD MANUAL TABLE OF CONTENTS Warnings Chapter 1 DESCRIPTION AND MAIN CHARACTERISTICS Chapter 2 OPERATION Chapter 3 FUNCTIONAL DESCRIPTION Chapter 4 PREVENTIVE MAINTENANCE Chapter 5 TROUBLESHOOTING Chapter 6 CORRECTIVE MAINTENANCE Chapter 7 PART LIST Chapter 8 INSTALLATION Chapter 9 FIGURES 304202P003 M Rev.
SRT X-BAND RADAR SYSTEMS INDEX TABLE OF CONTENTS CHAPTER 1 DESCRIPTION AND MAIN CHARACTERISTICS ..................................................1.1 1.1 1.1.1 1.1.2 1.1.3 1.2 1.3 1.3.1 1.3.2 1.3.2.1 1.3.2.2 1.3.2.3 1.3.2.4 1.4 1.5 INTRODUCTION........................................................................................................................1.1 MANUAL APPLICABILITY ........................................................................................................1.
SRT X-BAND RADAR SYSTEMS INDEX 3.2.1.7 3.2.1.8 3.2.1.9 3.2.1.10 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 SYSTEM MONITOR FUNCTIONS .........................................................................................3.10 PERFORMANCE MONITOR FUNCTIONS ..............................................................................3.10 INPUT AND OUTPUT INTERFACE ........................................................................................3.
SRT X-BAND RADAR SYSTEMS INDEX 8.3.2.2 8.3.2.3 8.3.2.4 8.3.3 8.3.3.1 8.3.3.2 8.3.3.3 8.3.4 8.3.4.1 8.3.4.2 8.4 8.5 8.5.1 ANTENNA ...........................................................................................................................8.8 SAFETY SWITCH (EXTERNAL IS OPTIONAL) ........................................................................8.8 PERFORMANCE MONITOR ARM ..........................................................................................8.
SRT X-BAND RADAR SYSTEMS INDEX LIST OF TABLES TABLE 1.1.1 - LIST OF ABBREVIATIONS .................................................................................................1.3 TABLE 1.3.1- EQUIPMENT, ACCESSORIES AND DOCUMENTS SUPPLIED .................................................1.5 TABLE 1.3.2 – SRT X-BAND 12 AND 25KW COMPOSITION ..................................................................1.8 TABLE 1.3.3 - RF HEAD............................................................................
SRT X-BAND RADAR SYSTEMS WARNINGS WARNINGS IMPORTANT NOTE For correct operation, please, read this instruction manual carefully, before operating the equipment. HIGH VOLTAGE Radar equipment requires the use of high voltages. This can cause injury, or loss of life. Danger exists only when the units are opened, exposing internal circuits, as when servicing the equipment. You do not face any danger during normal operation.
SRT X-BAND RADAR SYSTEMS WARNINGS The pedestals have also been prepared for the installation of an external safety switch, which can be mounted on, or near the platform. This switch removes the power from the Pedestal eliminating the possibility of accidental operation during servicing and also causes disabling of transmission.
SRT X-BAND RADAR SYSTEMS WARNINGS CAUTION IF THIS IS OPERATING PROCEDURE, MAINTENANCE PROCEDURE, PRACTICE, CONDITION OR STATEMENT IS NOT STRICTLY FOLLOWED, COULD RESULT IN INJURY OF PERSONNEL OR PROPERTY DAMAGE . NOTE Advice of an essential operating procedure, maintenance procedure, condition or statement which must be followed. Whenever a precaution, relating specific part of the technical manual is needed, precaution information is given in the relevant part of the manual.
SRT X-BAND RADAR SYSTEMS WARNINGS retained on capacitors. To avoid danger and casualties, always remove power and discharge to ground a high voltage circuit before touching it! DO NOT SERVICE OR ADJUST ALONE ! Under no circumstances should any person initiate servicing or adjusting the unit except in the presence of someone capable of helping. RESUSCITATION Personnel working with or near high voltage should be familiar with modern methods of resuscitation.
SRT X-BAND RADAR SYSTEMS WARNINGS Warning Information The following warnings signs appear in this technical manual, and to point out their importance, they are repeated also here for emphasis: WARNING USE EXTREME CARE WHEN WORKING ON THE UNIT ONCE THE COVER HAS BEEN OPENED. THE MAGNETRON ASSEMBLY OPERATES AT HIGH VOLTAGES THAT MAY CAUSE FATAL INJURIES WARNING BE AWARE OF HIGH VOLTAGE CAPACITORS ! IT IS NECESSARY TO SHORT-CIRCUIT THEIR LEADS BEFORE PERFORMING ANY MAINTENANCE ACTION ON THEM.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS CHAPTER 1 DESCRIPTION AND MAIN CHARACTERISTICS 1.1 Introduction 1.1.1 Manual Applicability The present technical manual provides information, data, and procedures relevant to general description, operation, functional description, scheduled maintenance, troubleshooting, corrective maintenance and replaceable parts list of the SRT X-Band RADAR SYSTEMS consisting of 12 kW or 25 kW pedestal and 6, 9, or 12 feet antennas.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.1.2 The purpose of the equipment The SRT X-Band Radar System, when connected to a Display Unit (not described in this manual), performs the following functions: − It receives the radar controls from the Display Unit connected to the equipment. − It generates and receives the RF pulses. − It processes the RF pulses. − It sends the radar data and controls to the Display Unit.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.1.3 List of Abbreviations All measurement abbreviations are according to the MIL STD-12. Other terms and abbreviations, used in the manual are listed in Table 1.1.1 - List of abbreviations. Table 1.1.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.3 Physical Description The SRT 12 and 25 kW X-Band Radar System is composed of (Chapter 9, Figure 9.1.2): − The Antenna: 6, 9,or 12 feet (pos. 3) − The Pedestal (pos. 2) − Optional equipments: Heater, Encoder, SRT Adapter Box All Units are designed for maximum resistance to the severe environmental conditions in which they have to operate. Table 1.3.1- Equipment, Accessories and Documents Supplied Pos.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.3.1 Antenna The Antennas available are: − 6 feet: ANT6X-001 − 9 feet: ANT9X-001 − 12 feet: ANT12X-001 (only IEC 60945 tested) The Antenna (Chapter 9, Figure 9.1.2 pos. 3) is fixed to the Pedestal Support (pos. 1) by means of four (4) screw (pos. 1) The antenna consists of • a side feeded slotted waveguide of 6, 9, or 12 feet lengths, • a waveguide feeding the slotted waveguide from the rotary joint including a turnaround part.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.3.2 Pedestal The Pedestal is composed of a metal cabinet (Chapter 9 Figure 9.1.3 pos. 1), made of Aluminum, treated with anticorrosive paint in order to be saline atmosphere resistant. The cabinet is provided with a cover (Chapter 9 Figure 9.1.4 pos. 2) fixed to the cabinet by four screw (pos. 1); the cover can be opened to allow an easy access to the internal components.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.3.2.2 SRT Electronics parts The SRT X-BAND RADAR Pedestal contains high speed electronic circuits, which allow to the RF HEAD, transmission, reception and processing the RF echoes. Table 1.3.2 – SRT X-Band 12 and 25kW Composition lists the main assemblies composing the unit and their position inside the unit. Table 1.3.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.3.2.3 Motor Unit The Motor Unit is composed of (Chapter 9, Figure 9.1.5): − the Motor (pos. 1) whose function is to provide the necessary power to produce the Antenna rotation, − the Gear Reduction Box (pos. 2) whose function is to reduce the motor angular speed, − the final gear (pos.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.3.2.4 Pedestal for Downmast Configuration In the case of a Downmast Configuration the Pedestal contains only the Motor Unit as described in 1.2.2.3. and one interface PCB. The link between the rotary joint and the external waveguide is made with a special 90° joint (Figure 9.1.34/45 – 2) with a flange choke at one of the extremities. In this way a mechanically locked connection is not needed and the transceiver lid can be easily opened.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.4 Functional Description The SRT 12 KW and 25 kW X-BAND Radar System is divided mainly into Receiver and Transmitter sections, both connected to a solid state controlled modular R.F. HEAD. The Transmitter generates the R.F. energy in the X-Band range and pulses modulated with a peak power of 12 or 25 kW. The length and PRF of the pulses are in accordance with the range scale selected on the Display Unit.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1.5 Technical Characteristics In Table 1.4.1. the Technical Data Sheet of the SRT X-Band Radar System with 12 and 25 kW pedestal and 6, 9, and 12 feet antennas are given: Table 1.4.1.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 1 General Description 1 • Performance Monitor; • Rotation: 20 and 40 RPM selectable; 2. Antenna & Driver - Technical Specifications Antenna model 6X 9X 12X Antenna Unit Type I/N ANT6X-001 ANT9X-001 ANT12X-001 Driver & Transceiver I/N: SRT/12-002 SRT/25-002 SRT/12-003 SRT/25-003 SRT/12-002 SRT/25-002 SRT/12-003 SRT/25-003 SRT/12-002 SRT/25-002 Antenna type End-fed-slotted wave guide Antenna length (inch / mm.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 3. X Band Transceiver - Technical Specifications Nominal peak power (KW): Transceiver I/N: 12/10 (*) 25 SRT/12-002 SRT/12-003 SRT/25-002 SRT/25-003 Operating frequency (MHz): 9375 ± 30 or 9410 ± 30 (X Band) Pulse length (nsec.
SRT X-BAND RADAR SYSTEMS DESCRIPTION AND MAIN CHARACTERISTICS 5. Dimensions (mm) Width 364 Depth 534 Height 391 6. Weights (Kg) Antennas (6X / 9X / 12X) 5 Pedestal with Transceiver 9 14 35 7. Required Power Supply Standard configuration 24 VDC or 115/220 VAC Power consumption: 8. Ca 350 W Peak at maximum wind load Options Different PRF set Upon Customer request Heaters For very cold environments Encoder 1024 pulses Upon Customer request 304202P003 1.15 (< -25° C) Rev.
SRT X-BAND RADAR SYSTEMS OPERATION CHAPTER 2 OPERATION 2.1 Introduction 2.1.1 Purpose The present chapter provides the operating instructions, information and procedures required in order to enable operating personnel to efficiently and effectively operate the SRT X-BAND Radar System, for it to accomplish its designated tasks. The Chapter is divided in: Paragraph 2.2 Controls and Indicators Paragraph 2.
SRT X-BAND RADAR SYSTEMS OPERATION Table 2.3.2 - Semi-Operative Controls Location of Electronic Rack Pos. Code (Ref. Assy) Figure 9.1.17 6 Figure 9.1.10 Fig. Type Function S1 10 position rotary switch It selects the TXRX unit operation mode as follow: Pos.
SRT X-BAND RADAR SYSTEMS OPERATION 2.4 NMEA Transfer Protocol 2.4.1 Abbreviations RDC TXRX CRC Radar Display Console Transceiver (TX/RX) Checksum Field Field Type Field type Status Symbol A Variable Numbers x.x Fixed HEX field Variable text Fixed alpha field hhc—c aa- Fixed number field Fixed text field xxcc- • • Definition A = Yes, data valid, warning flag clear. V = No, data invalid, warning flag set. Variable length integer or floating numeric field. Optional leading and trailing zeros.
SRT X-BAND RADAR SYSTEMS OPERATION 2.4.2 DATA TRANSMISSION FROM RDC TO TXRX (OR INTERFACES) 2.4.2.1 OPERATIONAL CONTROL SENTENCE 2 $PCO2,x,a,aa,aaa,a,a,a,a,hh,a*hh │ │ │ │ │ │ │ │ │ └─ MGN Heater: W = warm, C = cold else NULL (AUTO) │ │ │ │ │ │ │ │ └─ Tuning adjust (min 00H, max FFH). If Automatic don't care.
SRT X-BAND RADAR SYSTEMS OPERATION 2.4.2.3 TIMERS INITIALIZATION $PTIM,x,x,x,x.x,x.x,x.x,x.x,x.x,x.x,x.x*hh │││ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └─ Timer M-Pulse Low Freq. │ │ │ │ │ │ │ │ └─ Timer S-Pulse Low Freq. │ │ │ │ │ │ │ └─ Timer S-Pulse Medium Freq. │ │ │ │ │ │ └─ Timer L-Pulse Low Freq. (²) │ │ │ │ │ └─ Timer M-Pulse Medium Freq. │ │ │ │ └─ Timer S-Pulse High Freq.
SRT X-BAND RADAR SYSTEMS OPERATION 6 NOISE DIODE CURRENT (³) Increment or decrement to apply ( range ±7). (NEVER SEND 0) (°) If “A” with pot id, adjust only the correspondent Pot. (not yet). If “A” without pot id (,,), adjust all the auto adjustable (Tune offset for now). Sentence should be sent under operator request only. Application of value is immediate but storage of this one (not volatile memory) will take place after 20 seconds from last change i.e. from last DPC sentence reception. 2.4.
SRT X-BAND RADAR SYSTEMS OPERATION │ │ │ │ │ │ │ │ │ │ │ │ │ └── Software Revision (From A to Z) │ │ │ │ │ └── Warm Up time (²) │ │ │ │ └── Txrx Program Software Version (> 80) │ │ │ └── Inner transceiver temperature (¹) │ │ └── Magnetron Peak Current (Range 00H ± FFH). │ └── Main Bang Amplitude (Range 00H ± FFH). └── Power Level (Range 00H ± FFH). Notes: (¹) Transceiver temperature: From -99 to 99 Celsius degree (signed value). (²) Warm Up time: calculated in seconds, when null becomes TXRX READY.
SRT X-BAND RADAR SYSTEMS OPERATION │ │ │ │ │ │ │ │ │ │ │ │ │ └─ Pot ID #6, PM Noise diode current │ │ │ │ │ └─ Pot ID #5, Tuning Offset │ │ │ │ └─ Pot ID #4, Video Level │ │ │ └─ Pot ID #3, Performance Monitor Amplitude │ │ └─ Pot ID #2, Performance Monitor Opening │ └─ Pot ID #1, STC Slope └─ Pot ID #0, STC Amplitude Notes: Potentiometer decimal Value : Range 0 ÷ 99. 2.4.3.5 SECTOR BLANKING SENTENCE $PSE2,,x.x,x.x,x.x,x.
SRT X-BAND RADAR SYSTEMS OPERATION $PHT2,a,a,a,a,a,a,a,a,a,a,a*hh ││││││ ││ │││ ││││││ ││ │││ │ │ │ │ │ │ │ │ │ │ └── INTERLOCK test : ││││││ ││ ││ │ │ │ │ │ │ │ │ │ └── FE MONITOR test : ││││││ ││ │ ││││││ ││ │ │ │ │ │ │ │ │ │ └── -15VDC Voltage test : ││││││ ││ ││││││ ││ │ │ │ │ │ │ │ └── 15ISO Voltage test : ││││││ │ │ │ │ │ │ │ └─── +15 VDC Voltage test : ││││││ ││││││ │ │ │ │ │ └── Line Input (24/50v, Voltage test : │││││ │ │ │ │ └── LINK flag (³) │ │ │ └── CRC ERROR RECEPTION (²) │ │ └── Safe
SRT X-BAND RADAR SYSTEMS OPERATION 2.4.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION CHAPTER 3 FUNCTIONAL DESCRIPTION 3.1 Introduction The present chapter provides the functional and detailed description of the main functions and operations performed by the SRT X-BAND RADAR SYSTEM. Functional diagrams are used to depict signal processing whilst the text is used to support diagrams as necessary for explanation purposes. The descriptions are structured in paragraphs as described in what follows: Paragraph 3.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION Logic symbols (gates) are used, if they represent more appropriately, in a simplified form, the logic function performed even by complex parts of hardware. Where necessary, functional description of power supplies and minor assemblies are referred to schematic diagrams.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION Pulse Type Duration PRF SHORT PULSE nominal 60 ns 3000 Hz MEDIUM PULSE nominal 250 ns 1500 Hz LONG PULSE nominal 800 ns 750 Hz − it receives the echoes reflected from targets and it converts and amplifies them − it monitors the unit’s correct operations 3.2.1.1 SRT Power Board The SRT Power (Chapter 9, Figure 9.1.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION − 50 VDC (VMOD) − HVON from Gate Array of SRT Control Board − LPA (Long Pulse Adjustment), MPA (Medium Pulse Adjustment) and SPA (Short Pulse Adjustment) from Gate Array of SRT Control Board − HVSTOP from SRT MOS board. The H.V.P.S.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION The Pulse Circuit Generator’s function is to generate the necessary high voltage supplying the Magnetron, according to the previous selections. The Input Pushing Trigger is TRPUSH and the input Pulling Trigger is TRPULL; both from SRT_CONTROL Board. To the Pulse Circuit Generator is applied as well the 700 V from the HVPS Generator Circuit.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION 3.2.1.6 Microprocessor and Gate Array 3.2.1.6.1 General Description PCB The heart of SRT_Control Board, is an advanced 32 Bit MCU (Micro-controller Unit) (Chapter 9, Figure 9.1.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION 3.2.1.6.2 Functions Performed The main functions performed by the Microprocessor with the Gate Array (Chapter 9, Figure 9.1.20 and Figure 9.1.21), on the basis of commands and selections, Remote, (from Display Unit) or Local, (Trough the Selector), are: − to initialize the TXRX operations − to generate the trigger pulse for SRT MOS Board and the trigger (TR) pulse for the Display Unit and the P.M.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION TEMP Temperature value; the value is send, in serial mode, to the Display Unit +5V M + 5V Voltage value. - 5V M - 5V Voltage value. - 15V M - 15V Voltage value. Monitor M Information about the L.N.F.E. status. AZ Antenna azimuth pulse HL Antenna ship reset pulse RX Asynchronous serial receive IRQ Video data Reception/Transmission Interrupt. NMI Power supply line absence. CK10 50 MHz clock SCK, SI Serial Gate Array management signals 3.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION 3.2.1.6.6 Gate Array Output Signal PCB DATA BUS Bit DB0-DB7 of the Data Bus. NMI Power supply line absence. IRQ Video data Reception/Transmission Interrupt. CK10 10 MHz clock CS0-CS7 Digital potentiometer chip select. U/D, INC Digital potentiometer control signals. SWFIL1-2-3 Magnetron filament voltage control signals. ANTS Antenna switch on signal. SPA, MPA, LPA HVPS circuit control signals. HVON HVPS circuit switch on signals.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION The signals TRPS and TRPL are applied to the DRIVER which generates the signals TRPUSH and TRPULL for the Pulse Generator circuit of the SRT_Mos Board. 3.2.1.7 System Monitor Functions System state monitor (Chapter 9, Figure 9.1.22) is performed by this unit. Unit is composed of : − Voltage Monitor − Temperature Monitor − SLK − Safety switch Voltage monitor performs monitoring of power supply voltage level.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION Board, is excited at each antenna scan by the radiated RF pulse energy, any time the RF beam crosses over. The result is, that when the Performance Monitor is switched on and the neon lamp is radiated by the Magnetron RF, the RF energy causes a current variation on neon lamp and on RM signal. A revelator circuit provides to detect this variation that interrupts the Noise Ring This function supplies to a general verification of the output power sent out. 3.2.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION two-BALANCED MIXER and the LOCAL OSCILLATOR; RF_Detector is the final amplification stage and it is of the logarithmic kind. The RF Head is designed to generate RF pulses in the X-Band range up to 12 or 25 kW and to receive echo from targets.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION Speed controller board sets brushless motor rotation speed by means of variable voltage signal VEL coming from SRT_Control Board. An enable control 5V signal is produced as well (start), for safety purpose. Turning the safety switch off results in preventing motor from rotating (Chapter 9, Figure 9.1.26). 3.2.
SRT X-BAND RADAR SYSTEMS FUNCTIONAL DESCRIPTION 3.2.5 Optional Equipment: SRT Adapter Box It is possible to connect TRTX units to the Radar Display with lengths of 300 m between. To ensure adequate signal levels at this distances the SRT Adapter Box has been introduced. The SRT Adapter Box has the following functions: • Ensure adequate Power supply level (of 50 V) for the TRTX even at long cable lengths.
SRT X-BAND RADAR SYSTEMS PREVENTIVE MAINTENANCE CHAPTER 4 PREVENTIVE MAINTENANCE 4.1 Introduction This chapter provides the necessary information to execute the preventive maintenance operations which must be carried out in order to ensure the SRT X-BAND Radar System’s full efficiency. The maintenance procedures are described in tabular form (Card); each card lists the operations which must be performed, their periodicity, the personnel required, the materials and the time required for their performance.
SRT X-BAND RADAR SYSTEMS PREVENTIVE MAINTENANCE − SAFETY PRECAUTIONS: it indicates the precaution to be followed in order to ensure a safe Preventive Maintenance operation execution Table 4.2.2 - List of the Preventive Maintenance Cards, for each of them, indicates the periodicity and the required time. Table 4.2.1 - List of Recommended Tools and Instruments Pr.
SRT X-BAND RADAR SYSTEMS PREVENTIVE MAINTENANCE WARNING HIGH VOLTAGE IS PRESENT INSIDE THE UNIT. DO NOT OPEN THE CABINET COVER BEFORE THE MAIN LINE BREAKER HAS BEEN TURNED TO OFF POSITION. ALL WORK PERFORMED ON THE TXRX MUST BE RECORDED IN THE UNIT LOG BOOK. WARNING BEFORE STARTING ANY MAINTENANCE WORK, IT IS MANDATORY THAT, FOR THE SAFETY OF PERSONNEL, ALL HIGH-VOLTAGE CAPACITORS BE SHORT-CIRCUITED BY MEANS OF A WELL INSULATED SCREWDRIVER OR OTHER SUITABLE TOOL.
SRT X-BAND RADAR SYSTEMS PREVENTIVE MAINTENANCE CARD 1 UNIT SRT 12 KW XBAND OPERATION Check of external preservation status PERSONNEL 1R REQUIRED INSTRUMENTS None PERIODICITY S1 REQUIRED TIME 15 minutes SAFETY PRECAUTIONS On the electric switchboard, set to OFF the Main Line Breaker relevant to the unit and hang to it a placard reading "WORK IN PROGRESS - DO NOT SWITCH ON" STEP SEQUENCE OF OPERATIONS 1. 2. 3. Check that no parts of the plastic covering the Antenna have been painted.
SRT X-BAND RADAR SYSTEMS PREVENTIVE MAINTENANCE CARD 2 UNIT SRT 12 KW X-BAND OPERATION Internal inspection and general cleaning PERIODICITY S2 PERSONNEL REQUIRED INSTRUMENTS 1R Set of screwdrivers, Electro Contact Cleaner, Soft brush, Primer, Paint, Emery paper, Soft cloth REQUIRED TIME 15 minutes SAFETY PRECAUTIONS On the electric switchboard, set to OFF the Main Line Breaker relevant to the unit and hang to it a placard reading "WORK IN PROGRESS - DO NOT SWITCH ON" STEP SEQUENCE OF OPERATIONS 1.
SRT X-BAND RADAR SYSTEMS PREVENTIVE MAINTENANCE CARD 3 UNIT SRT 12 KW X-BAND PERSONNEL 1JT OPERATION Replacement of the Magnetron PERIODICITY WR1 (8000 hours) REQUIRED INSTRUMENTS REQUIRED TIME Set of screwdrivers, Electric Soldering Iron, Silicone 30 minutes grease compound 340 SAFETY PRECAUTIONS On the electric switchboard, set to OFF the Main Line Breaker relevant to the unit and hang to it a placard reading "WORK IN PROGRESS - DO NOT SWITCH ON" STEP SEQUENCE OF OPERATIONS Preliminary Operations 1.
SRT X-BAND RADAR SYSTEMS TROUBLESHOOTING CHAPTER 5 TROUBLESHOOTING 5.1 Introduction 5.1.1 General This chapter provides the procedures to be followed in order to locate the faulty component when a trouble arises in the SRT X-BAND RADAR SYSTEM. 5.1.2 Organization The troubleshooting procedures are described by means of flow charts. When the faulty component is located, refer to Chapter 6 for its replacement. 5.1.
SRT X-BAND RADAR SYSTEMS TROUBLESHOOTING 5.2 Troubleshhoting Procedures 5.2.1 Safety Precautions WARNING SET THE SAFETY SWITCH TO OFF AND HANG TO IT A PLACARD READING “WORK IN PROGRESS DO NOT SWITCH ON WARNING OPERATE WITH CARE ON THE TXRX UNIT BECAUSE OF HIGH VOLTAGES AND HIGH POWER 5.2.2 Troubleshooting Operations Table 5.2.1 - List Of Main Possible Failures, describes the failures that can be met during the equipment functioning. If the failure occurred is not listed, call the Manufacturer Service.
SRT X-BAND RADAR SYSTEMS TROUBLESHOOTING Antenna rotates, but rotation speed cannot be controlled Transmitter does not generate RF There is no current to magnetron Antenna does not rotate Sector Blanking is not working Transmitter performance is low Antenna data can't be controlled Transmitter can't be controlled TXRX does not turn on Table 5.2.
x Antenna rotates, but rotation speed cannot be controlled Transmitter does not generate RF There is no current to magnetron Antenna does not rotate Sector Blanking is not working Transmitter performance is low Antenna data can't be controlled Transmitter can't be controlled TXRX does not turn on SRT X-BAND RADAR SYSTEMS TROUBLESHOOTING x x x x x x x x 304202P003 Potential Cause Check Remedy Replace the damaged Circuits are damaged Check input and output azimuth signals on SRT_Control board
SRT X-BAND RADAR SYSTEMS CORRECTIVE MAINTENANCE CHAPTER 6 CORRECTIVE MAINTENANCE 6.1 General 6.1.1 Introduction This chapter provides the procedure, which must be followed in order to replace a faulty component of the SRT X-BAND transceiver according to the troubleshooting procedures of Chapter 5. 6.1.
SRT X-BAND RADAR SYSTEMS CORRECTIVE MAINTENANCE − set of socket wrenches; − set of hexagonal wrenches. 6.2 Corrective Maintenance Procedures 6.2.1 General This paragraph provides a detailed description of the operations to be carried out in order to replace a damaged component Table 6.2.1 - List of Corrective Maintenance Procedures. Table 6.2.1 - List of Corrective Maintenance Procedures Paragraph 6.2.2 6.2.4 6.2.5 6.2.6 6.2.7 6.2.8 6.2.
SRT X-BAND RADAR SYSTEMS CORRECTIVE MAINTENANCE 6.2.3 Opening/Closing of the TXRX Cover a) Required Tools − Set of hexagonal wrenches b) Opening 1. On the electric switch board, set to OFF the Main Line Breaker relevant to the unit and hang to it a placard reading "WORK IN PROGRESS - DO NOT SWITCH ON" 2. By hands, rotate the Antenna (Chapter 9, Figure 9.1.2 pos. 3) orthogonally with respect to the cover opening direction as shown in Chapter 9, Figure 9.1.1 3. Unscrew the four screws (Chapter 9, Figure 9.1.
SRT X-BAND RADAR SYSTEMS CORRECTIVE MAINTENANCE reverse order 6.2.5 Replacement of the Brushless Motor Controller a) Required Tools − Set of screwdrivers; − Set of hexagonal wrenches. b) Removal 1. By following the procedures of paragraph 6.2.3, open the TXRX Cover 2. Disconnect the Brushless Motor Controller (Chapter 9, Figure 9.1.4 pos. 5) cables, taking note of their disposition 3. By means of the proper socket wrench, unscrew the 4 screws (pos.
SRT X-BAND RADAR SYSTEMS CORRECTIVE MAINTENANCE 5. By means of the proper screwdriver, unscrew the screws (Chapter 9, Figure 9.1.27 pos. 1 and pos. 6) and remove the Magnetron (pos. 2). c) Installation 6. Before fastening the Magnetron to the proper seat, spread a layer of silicone grease on Magnetron surface which is in contact with the alloy in order to increase the Magnetron heating surface dissipation. 7. In order to install the new Magnetron, perform the removal operations in reverse order 8.
SRT X-BAND RADAR SYSTEMS CORRECTIVE MAINTENANCE c) Installation 1. Check for the integrity of the new RF_Detector Assy 2. In order to install the RF_Detector Assy, perform the removal operations in reverse order without closing the Pedestal cover 3. By following the procedures of display manual, perform the VCO calibration 4. Close the Pedestal cover following the procedures of paragraph 6.2.3 6.2.
SRT X-BAND RADAR SYSTEMS CORRECTIVE MAINTENANCE Table 6.2.
SRT X-BAND RADAR SYSTEMS CORRECTIVE MAINTENANCE 1. Check for the integrity of the new Bearing Reader Board 2. In order to install the Bearing Reader Board, perform the removal operations in reverse order 304202P003 6.8 Rev.
SRT X-BAND RADAR SYSTEMS PART LIST CHAPTER 7 PART LIST 7.1 Introduction This chapter provides the list of the SRT 12/25 KW X-BAND replaceable parts. 7.1.1 Part List The parts’ list is divided into major assemblies. All parts attached to the assemblies are listed in Part List Tables. The Parts’ List Tables consist of eight columns as follows: − Column 1: POS.
SRT X-BAND RADAR SYSTEMS PART LIST 7.2 Part List Tables Table 7.2.1- List Of Items Of Chapter 9 FIG./POS. Description Drawing Specification Number or Type Required Quantity (N) Figure 9.1.2 6' Antenna X-Band 304465G1 1 “ 9’ Antenna X-Band 304465G2 1 “ 12’ Antenna X-Band 304465G3 1 304280A2 1 TBD 1 304427A1 1 Figure 9.1.5 Motoreducer assy for 6/9’ antennas Figure 9.1.5 Motoreducer assy for 12 antenna Figure 9.1.4, pos.5 Brushless motor driver Figure 9.1.27, pos.
SRT X-BAND RADAR SYSTEMS INSTALLATION CHAPTER 8 INSTALLATION X-Band Antenna Group including 6 or 9 12 feet Antenna and Pedestal with 12 / 25 kW Transceiver up-mast TABLE OF CONTENTS CHAPTER 8 INSTALLATION.................................................................................................................. 8.1 8.1.1 8.1.2 8.1.3 8.1.4 8.2 8.2.1 8.2.2 8.2.3 8.3 8.3.1 8.3.2 8.3.2.1 8.3.2.2 8.3.2.3 8.3.2.4 8.3.3 8.3.3.1 8.3.3.2 8.3.3.3 8.3.4 8.3.4.1 8.4 8.5 8.5.1 INTRODUCTION.......................
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.1 Introduction This chapter of the Technical manual can be used as a self-contained Installation Manual for the SRT X-Band Radar System including 6 or 9 12 feet Antenna and Pedestal with 12kW or 25 kW Transceiver up-mast. It contains necessary information, pictures and drawings to handle, assemble and install this unit as a part of the complete Radar Equipment. Actions how to prepare this unit for the Radar Equipment Setup Procedure are also described. 8.1.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.1.3 Storage After the material contained in the boxes has been inspected in the presence of customer and it has been verified that no damage has occurred, the unit shall be stored in its original packing until the time of installation. The storage premises must be dry and well protected. If the units must be kept in storage for more than one month, it is advisable to insert hygroscope substances, such as silicon gel salts, in the crates. See par. 8.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.2.2 Required power Standard configuration 115-220 V / 50-60 HZ Peak Power consumption 12 kW /25 kW 250 W / 380 W under 100 KN winds Medium Power consumption (from minimum configuration 12KW / 6X to 25KW / 9X HSC 75 W /130 W 8.2.3 Environmental Data Operating temperature -25°C / +55°C Note: With Heater -40°C Storage temperature -25°C / +70°C Relative humidity Up to 95% at +40°C Water resistance, Salt spray, Vibrations etc As per IEC 60945 304202P003 8.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.3 Installation 8.3.1 Installation Principles In order to obtain the best radar performance and accessibility, the following precautions should be used: − Space for the antenna to swing freely. See par.8.2 (Specifications; Antenna type) − Safety and easy access for maintenance purposes. It is preferable to use a platform on the ship mast.
SRT X-BAND RADAR SYSTEMS INSTALLATION however does not eliminate the blind sector, but will reduce false echoes produced by the obstacle. The best position for the reflector can be found by testing out different positions. It is highly recommended that the shipyard submit the drawings of the radar antenna position(s) to the manufacturer for approval.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.3.2 Mechanical installation The SRT consists of following units and type designations: Pedestal with 12/25 kW transceiver SRT/xx 6 feet antenna ANT6X-001 9 feet antenna ANT9X-001 12 feet antenna ANT12X-001 Safety switch (optional, always included in DC-CORE or SRT ADAPTER BOX) 8.3.2.1 Unit (pedestal + transceiver) Prepare the platform for mounting of the pedestal, with its built in transceiver.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.3.2.2 Antenna The antenna and the unit must be run up the mast separately and then assembled. The TXRX should not be lifted with the antenna already mounted. The mounting procedure of the antenna to the pedestal consists of following steps: − Remove the waveguide protections on the antenna and pedestal. − Mount the antenna over its support, check that the waveguide connections are on the same side.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.3.3 Electrical installation The electrical installation of the SRT consists of cabling and connection to terminals, Figure 6 (SRT schematic blocks), as described below: 8.3.3.1 Multicore Cable Also see par. 8.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.3.
SRT X-BAND RADAR SYSTEMS INSTALLATION Compass Safe Distance 8.3.4.2 Every unit should be located outside the minimum magnetic compass safe distance according to the following table: Unit 12.5 or 25 kW X-Band SRT Transceiver Unit type SRTX/12-002 Safe distance to Safe distance to the steering the standard magnetic com- magnetic compass pass (m) (m) Reduced Safe distance to the standard magnetic compass (m) Reduced Safe distance to the steering magnetic compass (m) 1.35 0.85 0.85 0.55 1.20 0.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 1 Lifting by crane WARNING Never pass or stay under any lifted object. 304202P003 8.13 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 2 Suggested Masthead Antenna mounting 304202P003 8.14 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 3 Suggested Antenna mounting 304202P003 8.15 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 4 Antenna Positions H≥L 304202P003 8.16 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 5 Dimension drawing 304202P003 8.17 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 6 SRT Schematic blocks ANTENNA DATA X-BAND ANTENNA AND MOTOR D.C. VOLTAGE ELECTRONICS RACK RADAR DATA Video, Trigger, Azimuth, Head DISPLAY UNIT RADAR CONTROLS MAINS A.C. VOLTAGE R.F. D.C. VOLTAGE SRT X-BAND 304202P003 8.18 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 7 Main Connector Drawing Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 SFT ANTS GND EBAT - EBAT+ Pin 6 Pin 6 Pin 8 Pin 9 Pin 10 VD05 VD NC MBAT - MBAT+ Fig 8 Cable termination Cable connector in 12/25kW X-band Up-mast transceiver 1 304202P003 8.19 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 9 304202P003 SRT Control Board 8.20 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig 10 304202P003 SRT Control board - Service switch 8.21 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION Fig. 11 Safety Switch 304202P003 8.22 Rev.
SRT X-BAND RADAR SYSTEMS INSTALLATION 8.5 Annex Special extensive illustrated instructions are included in this paragraph 8.5.
SRT X-BAND RADAR SYSTEMS ANNEX Installation Instructions Multicore Cable Technical Specification Core overview of Multicore Cable: Power supply cable Black 1,5mm² Black 2,5mm² Shield Coax RJR37 4 shielded twisted pair Ground cable 2,5mm² Coax RKB15 Power supply cable Red 0,35mm² Red 1,5mm² Blue 0,35mm² Red 2,5mm² 304202P003 White 0,35mm² 1 Rev.
SRT X-BAND RADAR SYSTEMS ANNEX Cable handling • Dismantle the outer insulation of the cable for 60 cm. • Remove most of the shield, let it be 5 cm with shield perceptive to vision: 5 cm. remaining • Remove the main protective film and turn, as in the picture, the shield over the cable outer isolation. 304202P003 2 Rev.
SRT X-BAND RADAR SYSTEMS ANNEX Main Shield and inner shields handling • Remove the metallic film from each twisted pair cables and pass the 4 ground wires through the turned shield. 0.35 mm² cores • Cut the core to the wanted length and dismantle the core for 10mm: • Insert and crimp the blue-end terminal: Note: End terminal should always be used. • Double connection in one terminal (yellow terminal): 304202P003 3 Rev.
SRT X-BAND RADAR SYSTEMS ANNEX • Triple connection in one terminal (grey terminal): 1,5 and 2,5 mm² cores • Cut the core to the wanted length and dismantle the core for 10mm: Note: End terminal should always be used. 304202P003 4 Rev.
SRT X-BAND RADAR SYSTEMS ANNEX RG coaxial cables Mechanical details of BNC connector: Cut the cable to the wanted length. Dismantle the outer isolation of the RG coaxial cable without damaging the shield, and put the related part of the BNC connector as below: Details related to the ring of the BNC connector.
SRT X-BAND RADAR SYSTEMS ANNEX Solder the centre core with the BNC pin. Be careful not damage the isolation (i.e. burned) during the solder process: Mount the BNC connector as below: 304202P003 6 Rev.
SRT X-BAND RADAR SYSTEMS ANNEX ELLIPTICAL WAVEGUIDE KIT 20 Mt. P/N 304615A1 30 Mt. P/N 304615A2 INSTALLATION INSTRUCTIONS 304202P003 7 Rev.
SRT X-BAND RADAR SYSTEMS ANNEX ELLIPTICAL WAVEGUIDE KIT 20 Mt. P/N 304615A1 30 Mt. P/N 304615A2 INSTALLATION INSTRUCTIONS TABLE OF CONTENTES 1 INTRODUCTION ............................................................................................................................9 2 20MT. ELLIPTICAL WAVEGUIDE KIT COMPOSITION ....................................................10 3 30MT. ELLIPTICAL WAVEGUIDE KIT COMPOSITION ....................................................
SRT X-BAND RADAR SYSTEMS ANNEX 1 Introduction The installation, maintenance, or removal of waveguide parts requires qualified, experienced personnel. Manufacturer installation instructions have been written for such installation personnel. Antenna systems should be inspected once a year by qualified personnel to verify proper installation, maintenance and condition of equipment. The manufacturer disclaims any liability or responsibility for the results of improper or unsafe installation practices. 1.
SRT X-BAND RADAR SYSTEMS ANNEX 2 20Mt. Elliptical Waveguide Kit composition The Elliptical Waveguide Kit P/N TBD composed of: Pos Q.ty 1 1 1.1 20Mt. 1.2 2 1.3 1 1.4 20 1.5 1 2 1 304202P003 Part Number 302826A1 86X201P002 86X202P002 86X203P002 69F104P001 86X206P001 86X131G801 Description 20 Mt. Andrew Waveguide Kit, including - EW85 Waveguide - Connector for EW85 Waveguide - Wall/Roof Feed-thru - Hanger for EW85 Waveguide - Pressure Window WR90 Bend 10 Rev.
SRT X-BAND RADAR SYSTEMS ANNEX 3 30Mt. Elliptical Waveguide Kit composition The Elliptical Waveguide Kit P/N TBD composed of: Pos Q.ty 1 1 1.1 30Mt. 1.2 2 1.3 1 1.4 30 1.5 1 2 1 304202P003 Part Number 302826A2 86X201P002 86X202P002 86X203P002 69F104P001 86X206P001 86X131G801 Description 30 Mt. Andrew Waveguide Kit, including - EW85 Waveguide - Connector for EW85 Waveguide - Wall/Roof Feed-thru - Hanger for EW85 Waveguide - Pressure Window WR90 Bend 11 Rev.
SRT X-BAND RADAR SYSTEMS ANNEX 4 Installation Instructions 4.1 Elliptical Waveguide Elliptical waveguide is supplied pressurised. An air inlet valve is included with each pressurised length. Gaskets, silicone grease, connecting hardware and assembly instructions are packed with unattached connectors.
SRT X-BAND RADAR SYSTEMS ANNEX smaller than minimum bending radius shown in table. Note that H plane minimum bending radius is considerably larger than E plane radius. Waveguide bend can be formed by hand. An improvised mandrel that will provide curved forming surface of equivalent radius may be used. waveguide may be twisted slightly for flange alignment. Use cable grip as temporary anchor to support waveguide until connector has been properly mated with Antenna Group input.
SRT X-BAND RADAR SYSTEMS ANNEX 4.1.4 Horizontal Runs Route waveguide from base of mast to feed-thru flange and from feed-thru flange to Transceiver. It can be supported above or below roof. Attach waveguide to horizontal support member using same type hangers and 4Ft. intervals as in vertical run. Exposed horizontal runs must be protected from weight of accumulated ice and damage from falling ice other objects. 4.1.
