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Consilium SRT Technical Manual

304202P003
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.se
REV. C
304202P003
October 2008
SRT X-BAND
MANUAL
TRANSCEIVER
RADAR SYSTEMS
TECHNICAL
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 ....................................................................................................
........................................................ MANUAL PART NUMBER.........................
ISSUED INDEX............................... REVISION INDEX......................................
PURCHASING AGENCY......................................................................................
NAME OF USER...................................................................................................
ADDRESS OF USER............................................................................................
.............................................................................................................
.............................................................................................................
ATTN:...................................................................................................
304202P003 A Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
RECORD OF CHANGES
RCS CODE/REV. INDEX DATE
Revision A NOV 2007 First Emission
Revision B April 2008
Revision C
October 2008
PURPOSE OF THE CHANGE
Add the EC CERTIFICATE
Replace the EC CERTIFICATE
CHANGE
REQUESTED BY
Request for Changes 014/08
Request for Changes 044/08
304202P003 B Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 C Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 D Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 E Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 F Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 G Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 H Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 I Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 J Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 K Rev. C
SRT X-BAND RADAR SYSTEMS
FOREWORD
304202P003 L Rev. C
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. C
SRT X-BAND RADAR SYSTEMS
INDEX
TABLE OF CONTENTS
CHAPTER 1 DESCRIPTION AND MAIN CHARACTERISTICS..................................................1.1
1.1 INTRODUCTION........................................................................................................................1.1
1.1.1 MANUAL APPLICABILITY ........................................................................................................1.1
1.1.2 THE PURPOSE OF THE EQUIPMENT............................................................................................1.2
1.1.3 LIST OF ABBREVIATIONS.........................................................................................................1.3
1.2 CONFIGURATION TABLE..........................................................................................................1.4
1.3 PHYSICAL DESCRIPTION..........................................................................................................1.5
1.3.1 ANTENNA................................................................................................................................1.6
1.3.2 PEDESTAL ...............................................................................................................................1.7
1.3.2.1 MAIN CONNECTOR .............................................................................................................1.7
1.3.2.2 SRT ELECTRONICS PARTS ..................................................................................................1.8
1.3.2.3 MOTOR UNIT......................................................................................................................1.9
1.3.2.4 PEDESTAL FOR DOWNMAST CONFIGURATION ..................................................................1.10
1.4 FUNCTIONAL DESCRIPTION ...................................................................................................1.11
1.5 TECHNICAL CHARACTERISTICS .............................................................................................1.12
CHAPTER 2 OPERATION...................................................................................................................2.1
2.1 INTRODUCTION........................................................................................................................2.1
2.1.1 PURPOSE .................................................................................................................................2.1
2.2 CONTROLS AND INDICATORS...................................................................................................2.1
2.3 SEMI-OPERATIVE CONTROLS...................................................................................................2.1
2.4 NMEA TRANSFER PROTOCOL.................................................................................................2.3
2.4.1 ABBREVIATIONS......................................................................................................................2.3
2.4.2 DATA TRANSMISSION FROM RDC TO TXRX (OR INTERFACES)..............................2.4
2.4.2.1 OPERATIONAL CONTROL SENTENCE 2....................................................................2.4
2.4.2.2 SECTOR BLANKING SENTENCE.................................................................................2.4
2.4.2.3 TIMERS INITIALIZATION.............................................................................................2.5
2.4.2.4 DIGITAL POTENTIOMETERS.......................................................................................2.5
2.4.3 DATA TRANSMISSION FROM TXRX TO RDC................................................................2.6
2.4.3.1 STATUS SENTENCE 2....................................................................................................2.6
2.4.3.2 DATA SENTENCE...........................................................................................................2.6
2.4.3.3 TIMERS INFORMATION................................................................................................2.7
2.4.3.4 DIGITAL POT. INFORMATION....................................................................................2.7
2.4.3.5 SECTOR BLANKING SENTENCE.................................................................................2.8
2.4.3.6 WRONG COMMAND RETURN (NACK) ...................................................................... 2.8
2.4.3.7 HEALTH SENTENCE 2...................................................................................................2.8
2.4.3.8 DATA SENTENCE 3........................................................................................................2.9
2.4.4 GENERAL NOTES..............................................................................................................2.10
CHAPTER 3 FUNCTIONAL DESCRIPTION....................................................................................3.1
3.1 INTRODUCTION........................................................................................................................3.1
3.2 FUNCTIONAL DESCRIPTION .....................................................................................................3.2
3.2.1 ELECTRONICS RACK................................................................................................................3.2
3.2.1.1 SRT POWER BOARD...........................................................................................................3.3
3.2.1.2 SRT POWER - LOW VOLTAGE POWER SUPPLY ...................................................................3.3
3.2.1.3 SRT_POWER - HIGH VOLTAGE POWER SUPPLY .................................................................3.3
3.2.1.4 SRT_MOS BOARD..............................................................................................................3.4
3.2.1.5 SRT_CONTROL BOARD......................................................................................................3.5
3.2.1.6 MICROPROCESSOR AND GATE ARRAY ................................................................................3.6
3.2.1.6.1 GENERAL DESCRIPTION......................................................................................................3.6
3.2.1.6.2 FUNCTIONS PERFORMED ....................................................................................................3.7
3.2.1.6.3 MICROPROCESSOR OUTPUT SIGNALS .................................................................................3.7
3.2.1.6.4 MICROPROCESSOR INPUT SIGNALS.....................................................................................3.7
3.2.1.6.5 GATE ARRAY INPUT SIGNAL ..............................................................................................3.8
3.2.1.6.6 GATE ARRAY OUTPUT SIGNAL...........................................................................................3.9
3.2.1.6.7 GATE ARRAY PULSE LENGTH GENERATOR ........................................................................3.9
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INDEX
3.2.1.7 SYSTEM MONITOR FUNCTIONS.........................................................................................3.10
3.2.1.8 PERFORMANCE MONITOR FUNCTIONS..............................................................................3.10
3.2.1.9 INPUT AND OUTPUT INTERFACE........................................................................................3.11
3.2.1.10 AZIMUTH (AZ) AND HEADING LINE (HL) SIGNAL CIRCUIT GENERATOR.........................3.11
3.2.2 RF HEAD.............................................................................................................................3.11
3.2.3 BRUSHLESS MOTOR CONTROLLER........................................................................................3.12
3.2.4 MOTOR UNIT.........................................................................................................................3.13
3.2.5 OPTIONAL EQUIPMENT: SRT ADAPTER BOX.........................................................................3.14
3.2.6 OPTIONAL EQUIPMENT: HEATERS ........................................................................................3.14
3.2.7 OPTIONAL EQUIPMENT: ENCODER........................................................................................3.14
CHAPTER 4 PREVENTIVE MAINTENANCE..................................................................................4.1
4.1 INTRODUCTION........................................................................................................................4.1
4.2 PREVENTIVE MAINTENANCE PROCEDURE...............................................................................4.1
CHAPTER 5 TROUBLESHOOTING..................................................................................................5.1
5.1 INTRODUCTION........................................................................................................................5.1
5.1.1 GENERAL ................................................................................................................................5.1
5.1.2 ORGANIZATION.......................................................................................................................5.1
5.1.3 PERSONNEL.............................................................................................................................5.1
5.1.4 TOOLS AND INSTRUMENTS ......................................................................................................5.1
5.2 TROUBLESHHOTING PROCEDURES...........................................................................................5.2
5.2.1 SAFETY PRECAUTIONS ............................................................................................................5.2
5.2.2 TROUBLESHOOTING OPERATIONS ...........................................................................................5.2
CHAPTER 6 CORRECTIVE MAINTENANCE.................................................................................6.1
6.1 GENERAL ................................................................................................................................6.1
6.1.1 INTRODUCTION........................................................................................................................6.1
6.1.2 SAFETY PRECAUTIONS ............................................................................................................6.1
6.1.3 PERSONNEL.............................................................................................................................6.1
6.1.4 REQUIRED TOOLS AND INSTRUMENTS.....................................................................................6.1
6.2 CORRECTIVE MAINTENANCE PROCEDURES.............................................................................6.2
6.2.1 GENERAL ................................................................................................................................6.2
6.2.2 ANTENNA REPLACEMENT .......................................................................................................6.2
6.2.3 OPENING/CLOSING OF THE TXRX COVER ..............................................................................6.3
6.2.4 REPLACEMENT OF THE MOTOREDUCER ASSY .........................................................................6.3
6.2.5 REPLACEMENT OF THE BRUSHLESS MOTOR CONTROLLER......................................................6.4
6.2.6 REPLACEMENT OF THE MAGNETRON.......................................................................................6.4
6.2.7 REPLACEMENT OF THE RF FRONT END ASSY..........................................................................6.5
6.2.8 REMOVAL/INSTALLATION OF THE ELECTRONICS ASSY ...........................................................6.6
6.2.9 REPLACEMENT OF THE BEARING READER BOARD...................................................................6.7
CHAPTER 7 PART LIST ......................................................................................................................7.1
7.1 INTRODUCTION........................................................................................................................7.1
7.1.1 PART LIST ...............................................................................................................................7.1
7.1.2 PART LOCATION ILLUSTRATION..............................................................................................7.1
7.2 PART LIST TABLES..................................................................................................................7.2
CHAPTER 8 INSTALLATION.............................................................................................................8.1
8.1 INTRODUCTION........................................................................................................................8.2
8.1.1 SHIPPING.................................................................................................................................8.2
8.1.2 UNPACKING ............................................................................................................................8.2
8.1.3 STORAGE.................................................................................................................................8.3
8.1.4 HANDLING ..............................................................................................................................8.3
8.2 SPECIFICATIONS ......................................................................................................................8.3
8.2.1 DIMENSIONS AND WEIGHTS (ALSO SEE OUTLINE DRAWINGS) ................................................8.3
8.2.2 REQUIRED POWER ...................................................................................................................8.4
8.2.3 ENVIRONMENTAL DATA..........................................................................................................8.4
8.3 INSTALLATION ........................................................................................................................8.5
8.3.1 INSTALLATION PRINCIPLES .....................................................................................................8.5
8.3.2 MECHANICAL INSTALLATION ..................................................................................................8.7
8.3.2.1 UNIT (PEDESTAL + TRANSCEIVER)......................................................................................8.7
304202P003 ii Rev. C
SRT X-BAND RADAR SYSTEMS
INDEX
8.3.2.2 ANTENNA...........................................................................................................................8.8
8.3.2.3 SAFETY SWITCH (EXTERNAL IS OPTIONAL) ........................................................................8.8
8.3.2.4 PERFORMANCE MONITOR ARM ..........................................................................................8.8
8.3.3 ELECTRICAL INSTALLATION....................................................................................................8.9
8.3.3.1 MULTICORE CABLE............................................................................................................8.9
8.3.3.2 SAFETY SWITCH .................................................................................................................8.9
8.3.3.3 GROUNDING .......................................................................................................................8.9
8.3.4 PRE SETUP PROCEDURES.......................................................................................................8.10
8.3.4.1 SHIP POWER VOLTAGE .....................................................................................................8.10
8.3.4.2 COMPASS SAFE DISTANCE................................................................................................8.11
8.4 INSTALLATION FIGURES AND DRAWINGS ..............................................................................8.12
8.5 ANNEX..................................................................................................................................8.23
8.5.1 MULTICORE CABLING AND TERMINATION PRINCIPLE...........................................................8.23
CHAPTER 9 FIGURES..........................................................................................................................9.1
FIGURE 9.1.1 SRT UP MAST GENERAL VIEW .................................................................................9.3
FIGURE 9.1.2 SRT UP MAST– EXTERNAL VIEW..............................................................................9.4
FIGURE 9.1.3 PEDESTAL EXTERNAL VIEW......................................................................................9.5
FIGURE 9.1.4 PEDESTAL INTERNAL VIEW.......................................................................................9.6
FIGURE 9.1.5 MOTOREDUCER ASSY................................................................................................9.7
FIGURE 9.1.6 ELECTRONICS RACK .................................................................................................9.8
FIGURE 9.1.7 SRT FUNCTIONAL BLOCK DIAGRAM FOR 6’ ANTENNA ............................................9.9
FIGURE 9.1.8 SRT INTERNAL CONNECTION .................................................................................9.10
FIGURE 9.1.9 SRT INTERNAL VOLTAGE AND SIGNALS..................................................................9.11
FIGURE 9.1.10 SRT_POWER - BOARD..........................................................................................9.12
FIGURE 9.1.11 SRT_POWER – GENERAL BLOCK ............................................................................9.13
FIGURE 9.1.12 SRT_POWER – PROTECTION CIRCUITS ................................................................. 9.14
FIGURE 9.1.13 SRT_POWER – LVPS CIRCUITS............................................................................9.15
FIGURE 9.1.14 SRT_POWER – HVPS CIRCUITS ...........................................................................9.16
FIGURE 9.1.15 SRT_MOS – BOARD ..............................................................................................9.17
FIGURE 9.1.16 SRT_MOS – BLOCK DIAGRAM...............................................................................9.18
FIGURE 9.1.17 SRT_CONTROL BOARD.......................................................................................9.19
FIGURE 9.1.18 SRT_CONTROL – BLOCKS...................................................................................9.20
FIGURE 9.1.19 SRT_CONTROL – MICROPROCESSOR AND GATE ARRAY.....................................9.21
FIGURE 9.1.20 SRT_CONTROL – INPUT INTERFACE ....................................................................9.22
FIGURE 9.1.21 SRT_CONTROL – OUTPUT INTERFACE.................................................................9.23
FIGURE 9.1.22 SRT_CONTROL – MONITOR ................................................................................9.24
FIGURE 9.1.23 SRT RF HEAD – FUNCTIONAL BLOCK DIAGRAM ...................................................9.25
FIGURE 9.1.24 SRT RF HEAD – L.N.F.E. .....................................................................................9.26
FIGURE 9.1.25 SRT RF HEAD – RF DETECTOR ............................................................................9.27
FIGURE 9.1.26 BRUSHLESS CONTROLLER – FUNCTIONAL BLOCKS ........................................9.28
FIGURE 9.1.27 ELECTRONICS RACK – PARTICULAR OF THE RF HEAD............................................9.29
FIGURE 9.1.28 RF AMPLIFIER ........................................................................................................9.30
FIGURE 9.1.29 ELECTRONICS RACK................................................................................................9.31
FIGURE 9.1.30 BEARING READER BOARD .......................................................................................9.32
FIGURE 9.1.31 ROTARY JOINT ........................................................................................................9.33
FIGURE 9.1.32 BRUSHLESS MOTOR CONTROLLER..........................................................................9.34
FIGURE 9.1.33 SRT DOWNMAST PEDESTAL DIMENSIONS DRAWING...............................................9.35
FIGURE 9.1.34 SRT DOWNMAST CONFIGURATION MECHANICAL ASSEMBLY ....................................9.36
FIGURE 9.1.35 SRT DOWNMAST CONFIGURATION MECHANICAL ASSEMBLY ....................................9.37
304202P003 iii Rev. C
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....................................................................................................................... 1.8
TABLE 1.3.4 - ELECTRONICS RACK........................................................................................................1.8
TABLE 2.3.1 - SEMI-OPERATIVE CONTROLS LOCATION OF TXRX CABINET .........................................2.1
TABLE 2.3.2 - SEMI-OPERATIVE CONTROLS LOCATION OF ELECTRONIC RACK.....................................2.2
TABLE 2.3.3 - SEMI-OPERATIVE CONTROLS LOCATION OF BRUSHLESS MOTOR CONTROLLER .............2.2
TABLE 4.2.1 - LIST OF RECOMMENDED TOOLS AND INSTRUMENTS .......................................................4.2
TABLE 4.2.2 - LIST OF THE PREVENTIVE MAINTENANCE CARDS ...........................................................4.2
TABLE 5.1.1- LIST OF RECOMMENDED INSTRUMENTS...........................................................................5.1
TABLE 5.2.1 - LIST OF MAIN POSSIBLE FAILURES)................................................................................5.1
TABLE 6.2.1 - LIST OF CORRECTIVE MAINTENANCE PROCEDURES........................................................6.2
TABLE 6.2.2 - CONNECTORS OF THE ELECTRONICS RACK .....................................................................6.7
TABLE 7.2.1- LIST OF ITEMS OF CHAPTER 9 .........................................................................................7.2
304202P003 i Rev. C
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. The SRT X-Band Radar System has been carefully designed to protect personnel from possible injury from high voltages at normal operation.
When inspecting or servicing the equipment, nevertheless, it is recommended that the Line Switch to left open, as an added protection.
Although every effort has been made to eliminate danger to personnel, no responsibility is accepted for any injury or loss of life suffered in connection with the equipment.
RADIO-FREQUENCY RADIATION
Harmful effects (particularly to the eyes) may be caused by exposure of any part of the human body to radio-frequency mean power densities. Hazard distances at which power densities of 100 W/ m², 50 W/ m² and 10 W/m² exist, are given in the following table
Configuration Distance to 100 W/
m² point [m]
12 kW Transceiver + 6'X Band Antenna (ANT6X-001) 12 kW Transceiver + 9'X Band Antenna (ANT9X-001) 12 kW Transceiver + 12'X Band Antenna (ANT12X-001) 25 kW Transceiver + 6'X Band Antenna (ANT6X-001) 25 kW Transceiver + 9'X Band Antenna (ANT9X-001) 25 kW Transceiver + 12'X Band Antenna (ANT12X-001)
Note :
12 KW transceiver: SRT/12-002 - SRT/12-003.
25 KW transceiver: SRT/25-002 - SRT/25-003 or SRT/PED-001 / SRT/PED-002 with 25KW Dowmast transceiver,
- 0,15 0,6
- - 0,5
- - 0,35
0,1 0,2 1,3
- 0,1 1,0
- 0,05 0,9
Distance to 50 W/
m² point [m]
Distance to 10 W/ m²
point [m]
The system is however designed too always disable the microwave radiation when the antenna is not rotating.
304202P003 1 Rev. C
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.
Whenever it is necessary to disconnect the waveguide system from a radar transmitter for maintenance purpose, the transmitter output should be terminated in a matched load, when possible. If this is not possible, care should be taken to avoid standing in front of an open-ended waveguide from which power is being radiated.
NEVER look down a waveguide from which power is being radiated.
X-RAY RADIATION
This unit does not generate X-RAY radiation.
SAFETY SWITCH
The Radar Unit is provided with a safety switch, which disable the Antenna movement during maintenance operations and avoids high voltage damage. Always turn the safety switch off, whenever advised in this manual (for instance, before performing any maintenance or installation procedure.). Ignoring safety switch operation may produce hazard of electrocution as well as other severe injures.
SAFETY PRECAUTIONS
Purpose
Safety precautions described in this paragraph are applicable to the SRT X­Band Radar System. Depending upon the type of advice, the following attention sings are used in the technical manual:
IF THIS OPERATING PROCEDURE, MAINTENANCE PROCEDURE, PRACTICE, CONDITION OR STATEMENT IS NOT STRICTLY FOLLOWED, COULD RESULT IN SEVERE INJURY OR DEATH OF PERSONNEL
DANGER
WARNING
IF THIS IS OPERATING PROCEDURE, MAINTENANCE PROCEDURE, PRACTICE, CONDITION OR STATEMENT IS NOT STRICTLY FOLLOWED, COULD RESULT IN DAMAGE, OR DESTRUCTION OF UNIT, OR LOSS OF EMISSION EFFECTIVENESS.
304202P003 2 Rev. C
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. Warnings and Cautions Signs precede applicable text.
Safety Operations
During normal operation (front cover closed), the unit can be quickly disconnected from the main power line, setting to OFF the main circuit breaker located on the electric switchboard.
During maintenance (front cover opened), it is possible to turn on the unit, by linking P1 on SRT Power Board (Chapter 9, Figure 9.1.10, pos. 5). This link forces the unit main power to be ON. During normal operation P1 on SRT Power Board must be set OPEN.
NOTE
The main power line is always present on the terminal board
Safety Summary
The following are general safety precautions that are not related to any specific procedure and therefore do not appear elsewhere in this technical manual. These are recommended precautions that all personnel must understand and apply during all phases of operation and maintenance.
KEEP AWAY FROM ANY LIVE CIRCUITS !
(Do not touch any circuits under operation!)
Operating personnel must at all times observe all safety regulations.
Do not replace components or make adjustments inside the unit with the high voltage supply turned ON. Under certain conditions, dangerous potentials may exist also, when the power breaker is in the OFF position, due to charges
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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. Such information may be obtained from the Bureau of Medicine and Surgery or equivalent.
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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.
WARNING
ON THE ELECTRIC SWITCHBOARD, SET TO “OFF” THE POWER BREAKER DEDICATED TO THE PRESENT EQUIPMENT AND HANG TO IT A SIGN, READING: “WORK IN PROGRESS ! DO NOT SWITCH ON! ”
WARNING
USE EXTREME CARE, WHEN WORKING ON THE EQUIPMENT, ONCE THE FRONT COVER HAS BEEN OPENED. THE MAGNETRON ASSEMBLY OPERATES AT HIGH VOLTAGES THAT MAY CAUSE FATAL INJURIES!
WARNING
SET MAIN LINE BREAKER TO OFF BEFORE REPLACING ANY FUSE. FUSES ARE UNDER VOLTAGE LEVELS WHICH MAY CAUSE FATAL INJURIES!
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SRT X-BAND RADAR SYSTEMS
DESCRIPTION AND MAIN CHARACTERISTICS
CHAPTER 1
DESCRIPTION AND MAIN CHARACTERIS-
TICS
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.
For brevity of description, reference to the equipment in this manual, can also be made by means of the Manufacturer code name:
SRT X-Band RADAR SYSTEMS with 12 or 25 kW Pedestal with 6, 9, or 12 Feet Antennas (Chapter 9,.Figure 9.1.4 pos. 8).
The contents of the present technical manual are arranged in 10 Chapters as follows:
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
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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.
The equipment’s power supply, 48 VDC is given by the Display Unit or from the SRT Adapter Box from the Ship Main Line.
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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 1.1.1 - List of abbreviations
ABBREVIATION MEANINGS
AC
AZ
DC
dB
dBm
HL
HV
IF
LED
LO
LNFE
LV
MDS
MTBF
PRF
RC
RF
Alternating Current
Antenna Azimuth Pulse
Direct Current
Decibel
Decibel referred to 1 milli-Watt
Heading Line
High Voltage
Intermediate Frequency
Light Emitting Diode
Local Oscillator
Low Noise Front End
Low Voltage
Minimum Detectable Signal
Mean Time Between Failures
Pulse Repetition Frequency
Resistor - Capacitor
Radio Frequency
RPM
TXRX
STC
TTL
VCO
WG
Revolution per Minute
Radar Transceiver
Sensitivity Time Control
Transistor-Transistor Logic
Voltage Controlled Oscillator
Waveguide
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SRT X-BAND RADAR SYSTEMS
DESCRIPTION AND MAIN CHARACTERISTICS
1.2 Configuration Table
Pedestal Antenna Transceiver Output Power
SRT/12-002 ANT6X-001 Included in Pedestal 12 KW Standard
SRT/12-002 ANT9X-001 Included in Pedestal 12 KW Standard
SRT/25-002 ANT6X-001 Included in Pedestal 25 KW Standard
SRT/25-002 ANT9X-001 Included in Pedestal 25 KW Standard
SRT/12-003 ANT6X-001 Included in Pedestal 12 KW HSC
SRT/12-003 ANT9X-001 Included in Pedestal 12 KW HSC
SRT/25-003 ANT6X-001 Included in Pedestal 25 KW HSC
SRT/25-003 ANT9X-001 Included in Pedestal 25 KW HSC
SRT/PED-001 ANT6X-001 09N-009 25 KW Standard
SRT/PED-001 ANT9X-001 09N-009 25 KW Standard
SRT/PED-002 ANT6X-001 09N-009 25 KW HSC
SRT/PED-002 ANT9X-001 09N-009 25 KW HSC
Rotational
Speed
304202P003 1.4 Rev. C
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. Description Code
1 12.5 or 25 kW
X-Band Receiver Transmitter Modulator and Antenna
2 Technical manual 304202P003 N.A. N.A. N.A. N.A.
Unit type: SRTX
SRTX/12-002 / SRT/12-003
or
SRT/25-002 / SRT/25-003 with
ANT6X-001 (**) or
ANT12X-001 (***) or
ANT12X-001 (´´´´)
Width
(mm)
364* 391*
1800**
2650
3618´´´
***
Height
(mm)
466**
466** *
466´´´
Depth
(mm)
534
Weight
(Kg)
35*
40**
44***
49´´´´
(*) Without Antenna
− (**) With 6´ Antenna
− (***) With 9´ Antenna
− (```` ) With 12 ´Antenna
−
304202P003 1.5 Rev. C
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. The connection to the rotary joint is trough a choke flange without screws.
• a polarisator to radiate only in horizontal polarization.
• an antenna horn consisting of upper and lower side to form the
vertical beam.
• A plastic external cover for weather protection.
The antenna is mounted on the pedestal by the antenna support structure with 4 screws. This support structure makes the antenna more rigid against wind and vibration.
304202P003 1.6 Rev. C
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