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FPV Electronics > Camera & GPS
The NRA24 50/200m radar module delivers high-precision altitude measurement capabilities for agricultural spraying and aerial mapping drones. Utilizing 24GHz FMCW millimeter-wave radar technology, it provides accurate terrain-following from 0.1-200m with exceptional performance over diverse surfaces including crops, water, and uneven terrain. Engineered for direct integration with APM/Pixhawk flight controllers, this rugged sensor maintains reliable operation in challenging environmental conditions such as pesticide spray, dust, rain, and fog.
| Parameter | Specification |
| Operating Frequency | 24GHz ISM Band |
| Detection Range | Standard: 0.1-50m Extended: 50-200m |
| Accuracy | ±0.02m (1-10m range) ±0.05m (10-200m range) |
| Beam Width | 28° (Azimuth) × 18° (Elevation) |
| Refresh Rate | 50Hz (Configurable) |
| Interfaces | UART (TTL 3.3V) CAN (ISO11898-2) |
| Power Requirements | 5-20V DC (±10% Ripple) / <3W |
| IP Rating | IP65 (Dust-tight / Water jets resistant) |
| Dimensions | 92×63×6 mm |
| Weight | 21g |
• Dual-Range Precision Altimetry
• Maintains 1-2m height over crops with ±2cm accuracy
• Detects terrain variations at 200m for mapping applications
• Multi-Surface Compatibility
• Consistent performance on water, rice fields, and glass surfaces
• Immune to reflection interference from plant canopy
• APM/PX4 Native Integration
• Plug-and-play with Ardupilot via MAVLink protocol
• Pre-configured terrain-following algorithms
• All-Weather Operation
• Penetrates rain (≤50mm/hr), fog (visibility >10m), and dust
• Resists pesticide chemical corrosion
• Anti-Interference Design
• Taylor-weighted antenna pattern suppresses ground clutter
• MIL-STD-810H vibration resistance (15G @ 10-2000Hz)
| Scenario | Detection Range | Success Rate | Accuracy |
| Crop Spraying (1-2m) | 0.1-50m | >99% | ±0.02m |
| Water Surface Tracking | 0.1-200m | 98.5% | ±0.03m |
| Slope Mapping | 5-200m | 100% | ±0.05m |
| Pesticide Environment | 0.5-50m | 99.2% | ±0.025m |
• Precision crop spraying at constant height
• Slope operation in mountainous terrain
• Orchard management with variable canopy
• Terrain-following for photogrammetry
• Lidar-assisted elevation modeling
• Power line inspection
• Automated takeoff/landing assistance
• Warehouse inventory drone navigation
• Delivery UAV altitude control
• Crane height monitoring
• Conveyor belt level measurement
• Mining equipment safety
• Operating Temperature: -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 (EN 61000-6-2)
• Chemical Resistance: ISO 15003 compliant (fuels, pesticides, cleaners)