Product

一、Business

“Bright Aviation”provides equipment supply, installation and commissioning, technical guidance, flight check ground commissioning, panel repair, factory training, after-sales service, technical consultation, spare parts support, equipment fault maintenance, optimization adjustment and periodic inspection, etc.(Turnkey Project)

二、Overview

1. The DME provides a distance guidance information relative to the DME station (DME and DVOR are assembled together) to the incoming and outgoing flights of the civil aviation airport, so as to ensure the precise positioning of the aircraft relative to the DME station when flying in the air.

2. Provide equipment performance selection with the most advanced technology and the most reasonable system architecture, provide users with friendly Windows based graphical software interface, integrate the latest technical features, and reduce the number of system boards.

3. 35U standard cabinet design reduces the installation, maintenance and logistics costs of equipment, and software design and certification meet the strict RTCA DO-178 B/278 standard.

三、Appearance

DMEE Main Cabinet

DME Antenna

Remote Control Unit

四、Characteristic

(1) Characteristic

1. Frequency: 962 ～ 1213 MHz.

2. Peak output power: ≥ 1KW (1000W model, used with DVOR)；≥ 100W (100W model, used with ILS).

3. Maximum system capacity: 200 aircraft/s.

4. Frequency stability: ≤± 0.0002% (2ppm).

5. Frequency control: Frequency Synthesizer.

6. Coverage: 320 km ，at 11000 meters above the line of sight.

7. Transmitter pulse spacing: X channel pulse spacing 12 ± 0.1 µ s, Y channel pulse spacing 30 ± 0.1 µ s.

8. Pulse Shape Rise and Decay: 2.5 µ s ± 0.5 µ s.

9. Pulse width: 3.5 ± 0.5 µ s.

10. Response pulse count: 900 PPS ～ 4800 PPS.

11. System delay: X channel 50 ± 0.02 µ s, Y channel 56 ± 0.2 µ s.

12. Dynamic Range:: -110 dBW/m ² (-94dBm, -124 dBW) to -22 dBW/m ² (-6dBm, -36 dBW).

13. Receiver sensitivity: 70% is -124 dBW (-94 dBm, -110 dBW/m ²).

14. Identification code: composed of 2 to 4 Morse code letters, programmable.

15. Time interval of identification code punctuation: 120ms, 360ms.

16. ID code repetition frequency: once every 30 seconds, the ratio of DVOR and DME jointly transmitting ID code is 3:1.

17. System shutdown conditions:

(1) Reply delay error exceeds 0.5 µ s ± 0.2 µ s.

(2) The pulse spacing error exceeds 0.5 µ s ± 0.2 µ s.

(3) The minimum transponder receiver sensitivity decreases by 6 dB or more.

(4) RF output power is reduced by 3dB.

(5) Continuous ident longer than 5 seconds.

(6) Lack of ident greater than 65 seconds.

(7) Reply efficiency is less than 70%.

(8) The transmitter count (PRF) drops below 700 PPS or exceeds 6000 PPS ( upper limit adjustable).

(2) Performance

1. Monitor: dual monitor redundancy and/or configuration, built-in BIT test.

2. The computer IP port accesses the equipment RMM software, which is based on networked local, remote control, and real-time synchronous linkage of RMM maintenance software.

3. Single transmitter and dual transmitter configurations (optional).

4. Graphical design of monitoring software, easy to operate, simple and convenient.

5. Real time sound, light and electricity integrity indication of system alarm information.

6. Multi level user permissions enable different management permissions and operation maintenance of equipment.

7. Log record query, analysis, printing and other functions throughout the life cycle.

8. Equipment important parameters and equipment operation status support graphical display.

9. Functions such as automatic saving, playback and analysis of equipment operation history data.

10. Comply with CAAC, 《Aviation Radio Navigation equipment, Part 3: Technical Requirements for Distance Measuring Equipment》, MH/T-4006.3-1998。

11. Comply with ICAO, Annex 10, Aviation Telecommunications, Volume 1, 《Requirements for Radio Navigation equipment》.

12. Primary Power: 110 ～ 220V AC ± 15%, 45 ～ 63 Hz, single phase.

13. Standby Power：48V DC backup battery, working for at least 4 hours.

(3) Structure

1. Weight: 240kg (1000W model); 200kg (100W model).

2. Dimensions: 170 (H) * 60 (W) * 60 (D) cm, standard 35U cabinet.

(4) Environment

1. Temperature: indoor -10℃ ～ +50℃； outdoor -50℃ ～ +70℃.

2. Relative humidity：indoor 0～ 95% (non condensing)； outdoor 0 ～100% .

3. Altitude: 0 ～ 4500m MSL.

4. Work cycle: continuous unattended.

5. Wind speed conditions: the outdoor antenna can work normally when the wind speed is up to 161 km/h and the antenna icing is 1 cm thick.

五、Equipment List

六、Remote Controller And Repeating Display Unit

（1）Characteristics

1. The remote controller communicates with the equipment and the repeating display unit through the Ethernet IP interface.

2. Primary Power: 110 ～ 220V AC ± 15%, 45 ～ 63 Hz, single phase.

3. Weight: 6 kg.

4. Size: 13.4 (H) * 60 (W) * 20 (D) cm, standard 3U chassis.

（2） Environment

1. Temperature: indoor -10°C ～ +50°C.

2. Relative humidity: 0 ～ 95%.

3. Altitude: 0 ～ 4500m MSL.

（3） Configuration list

1. Remote control, 1 set, 3U case.

2. Repeat display unit, 1 set, 3U case.

3. Transmission equipment，1 set.

（4）Appearance

七、RMM Software

The features of RMM software are as follows: visual design; Synchronization of local and remote status display information; Launch and monitoring parameters are checked regularly; Real time log recording and query; User level management.

RMM software provides Chinese and English operation interfaces to facilitate user operation and maintenance of equipment, as shown in the figure below.

DME “Mainframe working status” display interface (Chinese)

八、Standards

1. CAAC, 《Aeronautical radio navigation aids，Part 3: Technical Requirements for Distance Measuring Equipment》, MH/T-4006.3-1998。

2. CAAC,《Requirements for Electromagnetic Environment of Aviation Radio Navigation Stations (Stations)》, GB 6364-2013。

3. CAAC,《Civil Aviation Communication and Navigation Monitoring Station (Station) Setting Site Specification, Part 1: Navigation》, MH/T 4003.1—2021。

4. CAAC,《Test Requirements for Aviation Radio Navigation equipment, Part III: Distance Measuring Equipment》, AC-115-TM-2013-03。

5. ICAO, Annex 10, Aviation Telecommunications, Volume 1, 《Requirements for Radio Navigation equipment》.

6. ICAO, Document 8071, Volume 3, 《Test Manual for Radio Navigation equipment》，(1972).