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FPV Electronics > Camera & GPS
The MR72/40m 77GHz radar module delivers advanced obstacle detection capabilities for autonomous drone systems. Utilizing dual-beam millimeter-wave radar technology at 77GHz with FMCW modulation, it provides precise ranging up to 40 meters while detecting thin obstacles like power lines. Engineered for direct integration with APM/Pixhawk flight controllers, this IP66-rated sensor operates reliably in challenging conditions including rain, fog, dust, and direct sunlight.
| Parameter | Specification |
| Operating Frequency | 77GHz (76-81GHz band) |
| Detection Range | Short-Range Mode: 0.2-40m / Mid-Range Mode: 0.2-80m |
| Accuracy | ±0.10m |
| Target Capacity | 128 objects detected / 64 objects tracked in real-time |
| Beam Width | Short-Range: 112°(Az)×14°(El) / Mid-Range: 30°(Az)×15.6°(El) |
| Velocity Detection | -90km/h to +90km/h (approach/recession) |
| Interfaces | UART (3.3V TTL) / CAN (ISO11898-2) |
| Power Requirements | 12V DC ±10% / 2.5W |
| IP Rating | IP66 (Dust-tight / Powerful water jets) |
| Dimensions | 67.5×66×16.5mm |
| Weight | 80g |
• Dual-Beam Fusion Technology:
• Short-Range Wide Beam (112° azimuth): Near-field blind spot coverage
• Mid-Range Focused Beam (30° azimuth): Long-distance precision detection
• Micro-Obstacle Recognition: Detects 2mm diameter wires at 15m distance
• All-Weather Performance: Operates in rain (≤50mm/hr), fog (visibility >10m), and dust
• APM/PX4 Native Integration: Pre-configured MAVLink obstacle_distance messages
• Multi-Target Tracking: Classifies and tracks moving/static objects simultaneously
| Obstacle Type | Detection Range | Success Rate | False Alarm Rate |
| Power Line (Ø2mm) | 15m | 99.3% | 0.1% |
| Tree Branch (Ø5cm) | 40m | 100% | 0% |
| Concrete Wall | 40m | 100% | 0% |
| Moving Vehicle | 35m | 98.7% | 0.3% |
• Autonomous obstacle avoidance for commercial drones
• BVLOS (Beyond Visual Line of Sight) operations
• Power line inspection drones
• Terrain-following for agricultural spraying
• Warehouse inventory drone navigation
• Search and rescue operations in low-visibility
• Collision prevention for autonomous mobile robots
• Crane hook anti-swing systems
• Conveyor safety monitoring
• Operating Temp: -40°C to +85°C
• Weather Resistance: Operates in rain (50mm/hr) and fog (visibility >10m)
• Vibration Resistance: 15G @ 10-2000Hz (MIL-STD-810H)
• EMC Immunity: 200V/m @ 80-6000MHz