User's Manual
Table Of Contents
- KH1264 ISSUE 1
- CHAPTER 1
- CHAPTER 2
- CHAPTER 3
- CONTENTS
- ILLUSTRATIONS
- Figure 1 - Transceiver (DTX-A3): Module Locations 34
- Figure 2 - Drive Control Unit (GTX-A24): Module Locations 35
- Figure 3 X-band Upmast Transceiver (DTX-A3): Functional Diagram Figure 3 38
- Figure 4 X-band Upmast Transceiver (DTX-A3): Interconnection Diagram Figure 4 39
- Figure 5 - Drive Control Unit (GTX-A24): Block Diagram 319
- CHAPTER 4
- CONTENTS
- TABLES
- ILLUSTRATIONS
- Figure 1 - Transceiver (DTX-A3): Installation Dimensions 49
- Figure 2 - Transceiver (DTX-A3): Mast Mounting 410
- Figure 3 - Transceiver (DTX-A3): Fitting Kit 411
- Figure 4 - Suggested Antenna Lifting Arrangement 412
- Figure 5 - Drive Control Unit (GTX-A24): Installation Dimensions 413
- Figure 6 - Mains Isolator: Installation Dimensions 414
- Figure 7 - Transceiver (DTX-A3): Cableform Routing 419
- Figure 8 - Drive Control Unit (GTX-A24): Cableform Routing 420
- Figure 9 - Cable Gland: Assembly 421
- Figure 10 - Transceiver (DTX-A3): External Connections 423
- CHAPTER 5
- CHAPTER 6
- CONTENTS
- INTRODUCTION 63
- PLANNED MAINTENANCE 63
- DIAGNOSTIC MAINTENANCE 64
- CORRECTIVE MAINTENANCE 611
- TRANSCEIVER (DTX-A3) 612
- Access 612
- Removal of Rotating Joint (45-750-0034-001) 612
- Replacement of Rotating Joint (45-750-0034-001) 613
- Removal of Gearbox and Motor (55-100-0273-001) 613
- Replacement of Gearbox and Motor (55-100-0273-001) 613
- Removal of Azimuth Encoder (GTX-A188) 613
- Replacement of Azimuth Encoder (GTX-A188) 613
- Transceiver (DTX-A115) - Removal 614
- Transceiver (DTX-A115) - Replacement 614
- Power Supply (45-690-0062-002) and PSU Sense PCB (DTX-A121) - Removal 615
- Power Supply (45-690-0062-002) and PSU Sense PCB (DTX-A121) - Replacement 615
- CAN Adapter PCB (NNR-A981) - Removal 615
- CAN Adapter PCB (NNR-A981) - Replacement 615
- SharpEye Azimuth Interface PCB (DTX-A151) - Removal 616
- SharpEye Azimuth Interface PCB (DTX-A151) - Replacement 616
- DRIVE CONTROL UNIT (GTX-A24) 618
- CHECKS AFTER UNIT REPLACEMENT 620
- TRANSCEIVER (DTX-A3) 612
- ILLUSTRATIONS
- CONTENTS
- CHAPTER 7
- INSTALLATION AND SERVICE REPORTS
EQUIP MENT LO CA TION
UPMAST TRANS CEIVER (DTX-A3)
13 The Upmast Transceiver should be installed in such a position where Blind Arcs, caused
by obstructions, i.e. masts, funnels etc, are eliminated or minimised. Funnels, crosstrees
and other large obstructions can also reflect energy and give rise to spurious echo returns
especially in close proximity to land. Positioning the antenna close to funnels and exhaust gases
can adversely affect antenna performance.
14 The Upmast Transceiver is to be mounted on a rigid platform, which is positioned so that
the rotating antenna is clear of other structures.
15 The primary consideration must be the strength of the support for the Upmast
Transceiver/Antenna assembly. Details of the requirement are described in the following
sub-paragraphs:
(1) The antenna must be mounted more than 914 mm (3 ft) above any flat surface
greater than the diameter swept by the antenna. It must not be positioned in close
proximity of any magnetic compass or D/F aerial etc.
(2) Masts, sampsons, posts and rigging of more than 0.6 m (2 ft) diameter can cause
blind sectors. Increasing the distance between the antenna unit and these objects
will reduce the blind sectors that inhibit a good radar picture.
16 The Upmast Transceiver must not be mounted where the temperature exceeds 70
o
C.
17 The Upmast Transceiver must be kept clear of ship’s flexible communication aerials to
avoid damage to both.
DRIVE CON TROL UNIT (GTX-A24)
18 The Drive Control Unit is designed for bulkhead mounting and must be sited as near the
Transceiver as possible, the maximum cable run between the Drive Control Unit and
Transceiver is 65 m.
19 The Drive Control Unit must be sited to allow removal of the front cover, access to the
cable glands and removal of the key from the keyswitch, which is essential when working
aloft.
OP TIONAL MAINS ISO LA TOR (80-261-600)
20 The Mains Isolator must be sited adjacent to the display or in the area of the operators
control room and connected in parallel with the main display.
KH1264
Chap ter 4
Is sue 2 Page 4.5