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

CP 225
Original May 03 2
INSPECTION
Before commencing work, the proposed installation locations must be inspected and
accepted as being suitable for the equipment to be mounted securely following the
installation procedures which can be found in the relevant Kelvin Hughes Limited
manual under ‘installations’. All characteristics of the equipment must be taken into
account when inspecting the proposed location such as weight and torque of turning
mechanisms, regulation height of Radar display units and type, length and
specification of cables or waveguide.
All equipment must be inspected and checked off against the indent on unpacking, if
practicable, for completeness and damage. Any discrepancies against the indent or
damage to equipment must be reported to Kelvin Hughes Limited as soon as possible
but in any case within 24 hours.
TECHNICAL CONSIDERATIONS
Earthing:
Earthing is to be completed by following the appropriate installation instructions,
ensuring that all screws and bolts are tightened sufficiently and that any cable or braid
is routed correctly.
Cabling:
Cables are to be of correct specification and rating and are to be run in suitable cable
trays or guides. Any bulkhead penetrations, which are opened, must be closed thus
maintaining existing fire proofing precautions. Metal cable ties must be used when
running cable in any deckhead or bulkhead areas. Cables are to be terminated as per
current IEEE regulations thus ensuring correct practices are followed.
Siting and Mounting of Equipment:
The equipment must be mounted following the relevant Kelvin Hughes Limited
installation manual. Particular attention must be paid to the tightening of bolts and the
use of ‘Nylon’ locking nuts in areas of vibration such as on antennas and turning
mechanisms. Stainless steel nuts, washers and bolts must be used for all outdoor
installations. No modifications are to be made to any Kelvin Hughes Limited
equipment unless previously authorised in writing by Kelvin Hughes Limited and a
copy of such authorisation kept with the equipment manual(s).
Maintenance and Care of Equipment:
Kelvin Hughes Ltd recommends inspection on a three monthly basis of all equipment.
Particular attention is to be paid to turning mechanisms and scanners, which must be
kept clean using only a soft cloth and soap and water - No chemical agents or
corrosive cleaning agents are to be used. Any excessive end-to-end play, or
excessive noise in scanners should be reported to Kelvin Hughes Limited within 24
hours of discovery.