LDB-103 Distance Measuring Equipment (DME)
一、Business
“Bright Aviation” supplies complete sets of equipment, including spare parts supply, installation and commissioning, flight check, panel repair, factory training, after-sales service, technical consultation, spare parts support, on-site fault repair, periodic inspection and other businesses.
DME LDB-103 cabinet,as shown in the figure.
二、Performance
“Bright Aviation” has completed DVOR53D, DME LDB-103 equipment, installation and commissioning, flight check, on-site training, fault repair, periodic inspection, system optimization and other businesses at more than 10 airports in China, including Tashkurgan airport, Alar airport, Wuhan airport, Dingri airport, Liuzhou airport.
三、Case
In December 2022,“Bright Aviation”performed DVOR53D,DME LDB-103 equipment installation and commissioning at Tashkurgan Airport, Xinjiang Province, China, as shown in the figure.

四、Simulator platform
1.“Bright Aviation” has established a complete set of DME LDB-103 equipment simulator platform to undertake simulator modification, plate on-board testing, plate repair, practical training, spare parts support and technical support.
2. DME LDB-103 simulator platform,as shown in the figure.

五、Board List
No. | Board English Name | Board Chinese Name | Abbreviation | Serial Number |
一、Transmitter Unit,发射机单元 | ||||
1 | Transmitter Unit (TXU) | 100W发射机单元 | TXU | 0063420004400 |
2 | High Power Amplifier (HPA) | 1000W高功放单元 | HPA | 0063420004500 |
3 | Receiver Unit (RXU) | 接收板 | RXU | 0063420004300 |
4 | Relay Control Unit (RCU) | 继电器控制单元 | RCU | 0063420003200 |
5 | RF Shelf Board | 射频信号耦合板 | FSB | 0063430002000 |
6 | Cabinet Motherboard | 机柜母板 | CMB | 0063420007020 |
二、Monitor Unit,监控器单元 | ||||
1 | Control & Monitoring Unit(CMU) | 控制监控单元 | CMU | 0063420004100 |
2 | Monitor Transponder Unit (MTU) | 监控应答单元 | MTU | 0063420004200 |
三、Controller Unit,控制单元 | ||||
1 | Local Control Unit (LCU) | 本地控制板 | LCU | 0063420003100 |
2 | Network Management Processor Board(NMP/EIU) | 网络管理处理板 | NMP | 0063420007000 |
3 | MP/EIU FW | 对外接口单元 | EIU | 0063420003900 |
4 | Control Unit Motherboard | 控制单元母板 | CUM | 0063420007010 |
四、Remote Controller Unit,遥控器单元 | ||||
1 | Remote Control Status Unit | 远程控制状态单元 (遥控器) | RCSU IND-35D | 0066910000600 |
2 | Remote Status Panel [DVOR/DME] | DVOR/DME遥控板 | RSP-DVOR/DME | 1A72097 |
3 | Remote Status Panel [DME/DME] | DME/DME遥控板 | RSP-DME/DME | 2A72097 |
五、Power Supply Unit,电源单元 | ||||
1 | AC/DC Power Supply | 交直流电源单元 | PSU | 2A72595 |
2 | PSU Rectifier S/Mode 24V 400W | 交流电源模块 | REC | 1A73063 |
3 | PSU Supervisory Unit/Controller | 电源监控单元/控制器 | CXCI+ | 2A73009 |
六、Antenna Unit,天线单元 | ||||
1 | DME Antenna | DME天线 | DME-ANT | 1A73183 |
六、Cabinet Components distribution Diagram

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