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The new DDLmesh series wireless digital data link is a low-cost long-distance video & data transmission product with small size, light weight, 2×2 MIMO, complete functions and abundant frequency bands. DDLmesh series based on SDR software defined radio platform with 2×2 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.
DDLmesh 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, BD/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.
| General Specifications | |
|---|---|
| SDR Platform, Waveform | 9363 or 9361+7Z020, Mobile Network MANET |
| MIMO Technology | Space-time coding, Receive Diversity, TX/RX beamforming |
| Receive Sensitivity | -103dBm @ 5MHz BW |
| Channel Bandwidth | 1.25/2.5/5/10/20MHz |
| Data Rate | 1-70Mbps (20MHz BW) Adaptive, QoS |
| Modulation Mode | TD-COFDM, BPSK/QPSK/16QAM/64QAM Adaptive (Fixed optional) |
| RF Output Power |
Handheld: 2Watts x2; 4Watts x2; 5Watts x2 Backpack: 10Watts x2; 20Watts x2 (Supports TPC, transmission power control, 1dBm adjustable) |
| Mode | Decentralized P2P, P2MP and MP2MP communications with cross-connection, supporting small-scale (within 8 nodes) MESH networking with dynamic routing and multi-hop relay |
| Single Hop Delay | Average 6ms (Unidirectional, 20MHz BW) |
| Encryption | DES, AES128/256 (SM4/SNOW3G/ZUC optional, Chip/TF card encryption customized or external encryption machine) |
| Anti-Jamming Mode | Manual spectrum scanning channel selection, Full band enhanced intelligent frequency selecting (spectrum awareness) / Full band adaptive frequency hopping / Roaming mode optional |
| Management | Operating frequency, bandwidth, network ID, power settings, spectrum scanning, real-time display & stats of network topology, signal strength, SNR, traffic, node distance, BD/GPS positioning map, temperature/voltage monitoring, silent/wake upgrade. |
| Others |
Boot time < 28 seconds; entry/update < 1 second; MESH loss over 3 hops < 70% (within 8 nodes limit); Doppler shift tracking ±6kHz (supports Mach 6 / 2000m/s speed) |
| Bands (70M-6GHz Customizable) | |
|---|---|
| BAND | Frequency Range Configuration |
| VHF/UHF (MHz) | 360-450 / 450-550 / 570-700 / 800-950, 225-400 / 225-678 / 320-470* |
| 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* |
| 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* |
| C Band (GHz) | 4.4-5.0 / 5.25-5.85, 4.2-5.2 / 5.5-6.0 / 6.4-7.2* (Note: RF Power, Size, and Weight may vary) |
| MIIT (MHz) | 336-344 / 512-592 / 566-626 / 606-678 / 1420-1520 / 1430-1444 |
| Environmental & Mechanical | |
|---|---|
| Operation Temp | -40°C ~ +80°C |
| Protection Level | IP66 (IP67 / IP68 Customizable) |
| Color Options | Black, Iron Gray (Army Green Optional) |
| Installation | 4 Mounting Holes, Handheld / Backpack options |
| Size & Weight (Handheld) |
• 19.0x6.8x3.8cm / 769g (with 11.1V/77.7Wh battery) • 26.0x6.8x3.8cm / 1.04kg (with 11.1V/114Wh battery) • 20.7x6.9x5.5cm / 1.30kg (with 11.1V/114Wh battery, 5G Routing) • 21.0x6.8x5.2cm / 972g (with 11.1V/77.7Wh battery, Four-band) • 15.5x6.6x3.2cm / 430g (Contains battery, excludes antenna/clip) |
| Size & Weight (Backpack) |
• 27.5x18.9x6.2cm / 4.15kg (with 22.2V/213Wh battery) • 33.6x18.9x6.2cm / 5.26kg (with 22.2V/427Wh battery) • 29.5x23.0x6.5cm / 5.26kg (with 22.2V/213Wh battery, Dual-band) • 28.8x21.0x6.2cm / 4.61kg (with 22.2V/213Wh battery, Dual-band Selection) • 22.9x18.9x6.5cm / 2.95kg (with 22.2V/427Wh battery, Four-band Selection) |
| Power & Batteries | |
|---|---|
| Supply Voltage |
• 12-36V DC (for 2W×2 / 4W×2 / 5W×2 modes) • 18-32V DC (for 10W×2 / 20W×2 modes) |
| Consumption |
• 2W×2: Active 1-2A / Standby 0.4-0.6A @ 12V • 4W×2 / 5W×2: Active 2-4A / Standby 0.5-0.7A @ 12V • 10W×2: Active 3-6A / Standby 0.7-0.9A @ 24V • 20W×2: Active 6-7A / Standby 0.7-0.9A @ 24V |
| Batteries Life |
• Handheld: 6-8 hrs (77.7Wh polymer Li, default) / 8-10 hrs (114Wh polymer Li) • Backpack: 6-8 hrs (213Wh polymer Li, default) / 10-12 hrs (427Wh polymer Li) |
| Interface Details | |
|---|---|
| Basic Interfaces | 2xTNC, 1-2xRJ45 Ethernet (100/1000BaseT), RS232, Wi-Fi AP, DC input. BD/GPS (GNSS), TTL (UART)/SBUS/Bluetooth 1.2-230.4Kbps. Supports transparent transmission (Ethernet/Serial) and MAVLink protocols. |
| Push to Talk / Aux | MIC, SPK, PTT, GND / 1xRS232, TTL, SBUS |
| Network Extensions | Public Network Routing / 4G LTE, WB-NB integration, Fiber, Satellite (Optional) |
| Video Extensions | Low Delay HDMI/SDI/CVBS, 4K/2K/1080P/720P/D1 (Optional) |
| Link Status Indicator |
• Steady Red: Disconnected • Blinking Red: Starting / Not Connected • Steady Green: Connected • Blinking Green: Push-To-Talk Activated |
| RSSI Link Quality |
• Steady Green: Excellent | • Steady Blue: Good | • Steady Yellow: Medium • Steady Purple: Low | • Steady Red: Poor / Down | • Off: Interrupted |
| Management Interface | Web-based network management / GUI, API for secondary development interface, SNMP support |
