DDLmesh Series of Wireless Digital Data Link for Airborne Radio
The new DDL series wireless digital data link is a low-cost long-distance video&data transmission product with small size, light weight, 2X2 MIMO, complete functions and abundant frequency bands. DDL series based on SDR software defined radio platform with 2X2 MIMO, it adopts Beamforming, Maximal Ratio Combining(MRC), Maximal Likelihood(ML) algorithm, low density parity check(LDPC) coding, intelligent frequency selection and autonomous frequency hopping technology to achieve strong radio frequency performance and strong anti-jamming.
DDL series data link radio provides ultra-long distance, low latency, bidirectional multi-channel network video&data&voice integrated wireless transmission. The world's leading code-modulated physical layer waveform technology and flexible anti-jamming and secure encryption design for the unmanned field are applied to reliable remote data links for UAVs, helicopters, robots, unmanned ships, unmanned vehicles and special vehicles.
The application system is mainly composed of the airborne radio with the airborne camera, and the ground radio with the ground computer, as well as the necessary accessories(including power supply, antenna feed system, connection lines and connectors, etc.).
The system can simultaneously transmit three IP/HDMI/SDI/CVBS HD video and multiple two-way transparent data(such as flight control/pod, Beidou /GPS, voice, etc.). AES encryption ensures transmission security.
Radio the transmission power of the station can reach up to 40W, providing a stable and reliable communication link.
Airborne Radio Specifications
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General |
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SDR Platform, Waveform |
9363 or 9361+7Z020, Mobile Network MANET |
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MIMO Technology |
Space-time coding、Receive Diversity、TX /RX beamforming |
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Receive Sensitivity |
-103dBm@5MHz BW |
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Channel Bandwidth |
1.25/2.5/5/10/20MHz |
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Data Rate |
1-70Mbps(20MHz BW) Adaptive, QoS |
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Modulation Mode |
TD-COFDM, BPSK/QPSK/16QAM/64QAM Adaptive(Fixed setting optional) |
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RF Output Power (Support TPC, transmission power control, 1dBm adjustable) |
0.25Watts x2/0.5Watts x2 1Watts x2/2Watts x2 4(5)Watts x2 10Watts x2/20Watts x2 |
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Single Hop Communication Distance |
Air to G. 3-15KM, 0.25Watts x2; 10-30KM, 0.5Watts x2; 20~50KM, 1Watts x2; 50~100KM, 2Watts x2; 100~150KM, 4Watts x2; 100~200KM, 5Watts x2; 150~300KM, 10Watts x2; 250~500KM, 20Watts x2 |
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Mode |
Decentralized point-to-point, point-to-many and many-to-many communications with cross-connection, supporting small-scale (within 8 nodes) MESH networking with dynamic routing and multi-hop relay |
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Single Hop Delay |
Average 10mS (20MHz BW) |
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Encryption |
DES, AES128/256, SNOW3G/ZUC optional, Chip/TF card encryption customized or external encryption machine |
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Anti-Jamming Mode |
Manual spectrum scanning channel selection, Full band enhanced intelligent frequency selecting(spectrum awareness)/Full band adaptive frequency hopping/Roaming mode optional |
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Local/Remote Management |
Operating frequency, channel bandwidth, network ID, transmit power and other parameter settings, spectrum scanning, real-time display and statistical recordsof network topology, link field strength signal-to-noise ratio, upload and download traffic, node distance, GPS/Beidou electronic map, temperature/voltage/jamming Monitoring, software upgrade. Remote silence and wake-up optional |
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Others |
The boot time is less than 28 seconds, and the network access/update/switching time is less than 1 second. The network size is less than 8 nodes. Automatic carrier tracking, adapting to Doppler frequency shift of ±6kHz frequency deviation, supporting mobile communications at speeds above 7200 kilometers per hour (Mach 6, 2000 meters per second). |
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Bands(70M-6GHz customizable. Same frequency or different frequency of 2T2R at single band, or 1T2R at dual-band selectable/smart change) |
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BAND |
Frequency range |
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VHF/UHF (MHz) |
360-450/450-550/570-700/800-950, 225-400/225-678/320-470* |
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L Band (GHz) |
1.0-1.2/1.1-1.3/1.3-1.5/1.5-1.7/1.6-1.8, 1.0-1.5/1.1-1.6/1.2-1.7/1.3-1.8/1.6-2.3/1.7-2.4/1.8-2.5* |
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S Band (GHz) |
2.0-2.2/2.2-2.4/2.3-2.5/2.5-2.7/2.7-2.9/3.2-3.4/3.4-3.6/3.6-3.8, 1.9-2.7/2.0-2.7/2.1-2.7/2.7-3.6* |
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C Band (GHz) |
4.4-5.0/5.25-5.85, 4.2-5.2/5.5-6.0/6.4-7.2* |
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(Note: RF power, Dimensions, Weight is different) |
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MIIT (MHz) |
336-344/512-592/566-626/606-678/1420-1520/1430-1444 |
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Environmental |
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Operation Temperature |
-40℃ ~+80℃ |
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Protection Level |
IP66, IP67/IP68 Customized |
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Mechanical |
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Size/Weight |
5.1x3.0x0.7cm/14g, 0.25Watts x2 Airborne Radio, DDL-nano 6.0x4.8x1.1cm/46g, 0.5(1)Watts x2 Airborne Radio, DDL-mini 6.0x5.8x1.3cm/60g, 0.5(1)Watts x2 Airborne Radio, DDL-mini 11.7x6.2x2.0cm/160g, 1(2)Watts x2 Airborne Radio-Iron Gray 13.8x6.2x2.7cm/225, 4(5)Watts x2 Airborne Radio-Iron Gray 12.8x13.4x3.8cm/598g, 10Watts x2/20Watts x2 Airborne Radio-Iron Gray 14.2x14.0x5.0cm/962g, 10Watts x2/20Watts x2 Airborne Radio-Black |
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Color |
Black, Iron Gray、Army Green Optional |
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Installation |
4 Mounting Holes |
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Power |
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Supply Voltage |
3.5-5VDC, 0.25Watts x2, DDL-nano 9-32VDC, 0.5Watts x2, DDL-mini 9-39VDC, 1Watts x2 12-36VDC, 2Watts x2/4(5)Watts x2 18-32VDC ,10Watts x2/20Watts x2 |
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Power consumption |
Operation 1-2A/Standby 0.5-1A@3.5-5V, 0.25Watts x2, DDL-nano Operation 0.3-0.5A/Standby 0.2-0.3A@12V, 0.5Watts×2, DDL-mini Operation 1-2A/Standby 0.5-0.7A@12V, 1Watts×2/2Watts×2 Operation 2-4A/Standby 0.5-0.7A@12V, 4(5)Watts×2 Operation 3-6A/Standby 0.7-0.9A@16.8V,10Watts×2 Operation 6-10A/Standby 0.7-0.9A@20V, 20Watts×2 |
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Power Selection |
Power Supply by Main Cable |
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Interface |
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Basic interface |
2xTNC RF, 1-3xRJ45 Ethernet 100/1000BaseT, WiFi AP,GPS/BD RS232/TTL(UART), Sbus/Bluetooth, 1.2-230.4Kbps, DC Input |
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Push to talk/Auxiliary interface |
MIC, SP, PTT, GND, RS485/422, USB2.0 OTG |
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Network Extension Optional |
Public Network Routing/4G LTE, WB-NB integration, Fiber, Satellite |
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Video Extension Optional |
Low Delay HDMI/SDI/CVBS, 4K/2K/1080P/720P/D1 |
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Link Status Indicator |
Steady red - The network is not connected Blinking red - Starting/not connected to the network Steady green - The network is connected Blinking green - Voice PTT is down |
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RSSI Link Indicator |
Steady green - The link quality is excellent Steady blue - The link quality is good Steady yellow - The link quality is medium Steady purple - The link quality is slightly worse Steady red - The link quality is poor or link is down |
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Management Interface/Control Interface |
Web-based network management/GUI, API for secondary development interface/SNMP |
Airborne Radio Hardware Interfaces
Airborne Radio, DDL-nano
| Interface name | Interface function | Connector specification |
| J1: mini-pcie interface | USB, serial port, LED indication and power supply interface | mini-pcie interface |
| J6: RF port RX2 | RF receiving channel 2 | IPEX MHFⅡ |
| J8: RF port TRX1 | RF transmitting and receiving channel 1 | IPEX MHFⅡ |
Airborne Radio（Blue）, DDL-mini
1. Serial 0&1(SM06B-GHS)
Pin1: GND
Pin2: RX0
Pin3: TX0
Pin4: RX1
Pin5: TX1
Pin6: 5V
2. LAN(SM05B-GHS)
Pin1: GND
Pin2: R+
Pin3: R-
Pin4: T+
Pin5: T-
3. PWR(SM04B-GHS)
Pin1: GND
Pin2: GND
Pin3: +
Pin4: +
Airborne Radio (Iron Gray)
1. RF Channels 1-2 Connectors [SMA Female]
2. Power/Communication Ports
3. Link Status Indicator
- Steady red: The network is not connected
- Blinking red: Starting/not connected to the network
- Steady green: The network is connected
Airborne Radio (Black)
1. RF Channels 1-2 Connectors [SMA Female]
2. WIFI Antenna
3. Power/Communication Ports
4. Link Status Indicator
- Steady red: The network is not connected
- Blinking red: Starting/not connected to the network
- Steady green: The network is connected
1. RF Channels 1-2 Connectors [SMA Female]
2. WIFI Antenna
3. Link Status Indicator
- Steady red: The network is not connected
- Blinking red: Starting/not connected to the network
- Steady green: The network is connected
4. HDMI Port
5. Power/Communication Ports
High-power Airborne Radio (Iron Gray/Black)
1. Link Status Indicator
- Steady red: The network is not connected
- Blinking red: Starting/not connected to the network
- Steady green: The network is connected
- Blinking green: Voice PTT is down
2. RSSI Link Indicator
- Steady green: The link quality is excellent
- Steady blue: The link quality is good
- Steady yellow: The link quality is medium
- Steady purple: The link quality is slightly worse
- Steady red: The link quality is poor or link is down
- Off: The link is interrupted
3. Power (18-32V), Ethernet, and Serial Port Connector
4. Radio switch
5. RF Channels 1-2 Connectors [SMA Female]