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DJI Phantom 4 RTK

Release Date

October 2018

Retail New Price

$6,608

Type

Enterprise Drones

Subtype

mapping
DJI’s Phantom 4 RTK is a compact, survey‑grade mapping drone engineered for centimeter‑level accuracy on low‑altitude missions. An integrated multi‑frequency RTK GNSS module, DJI’s TimeSync system, and an individually calibrated 1‑inch 20MP mechanical‑shutter camera work together to align image metadata precisely to the camera’s sensor center. The platform supports live RTK via NTRIP or the D‑RTK 2 Mobile Station, and enables post‑processing workflows (PPK) when live corrections aren’t available. Purpose‑built mission planning through the GS RTK app and a robust OcuSync HD link help deliver efficient, repeatable data capture for surveying, construction, and inspection teams.

Advantages

  • Centimeter‑level positioning with integrated multi‑frequency RTK and precise hover accuracy improves absolute map accuracy and reduces or eliminates many GCPs.
  • TimeSync writes calibrated lens parameters and geotags aligned to the sensor center for higher‑fidelity photogrammetry.
  • Mechanical‑shutter, 1‑inch 20MP camera minimizes rolling‑shutter distortion during mapping at speed.
  • GS RTK app streamlines photogrammetry/waypoint missions with KML import and mapping‑specific controls.
  • Flexible corrections: use NTRIP over 4G/Wi‑Fi or pair with D‑RTK 2; PPK available when live RTK isn’t feasible.
  • OcuSync HD link and up to ~30‑minute endurance support efficient coverage of large sites (up to ~1 km² per flight under stated conditions).

Disadvantages

  • Still images are limited to JPEG (no RAW), which may reduce flexibility for some post‑processing workflows outside mapping.
  • Fixed payload platform; camera/lens are not swappable.
  • Obstacle sensing is not omnidirectional; side protection relies on infrared sensing with limited range.
  • Bulkier airframe compared to newer foldable enterprise platforms, affecting packability.

Technical Specs

  • Takeoff Weight: Approx. 1391 g
  • Diagonal Size: 350 mm
  • Max Flight Time: Approx. 30 minutes
  • Max Speed: 31 mph (50 kph) P‑mode; 36 mph (58 kph) A‑mode
  • Service Ceiling (ASL): 6000 m (19,685 ft)
  • Operating Temperature: 0° to 40°C (32° to 104°F)
  • Transmission System/Range: OcuSync HD; up to 7 km (FCC), unobstructed/low interference
  • Operating Frequencies: 2.4 GHz and 5.8 GHz (region‑dependent)
  • Vision/Obstacle Sensors: Forward & rear stereo vision; downward vision; side infrared sensing (typ. 0.7–30 m detection for vision)
  • RTK GNSS (Positioning Accuracy): Horizontal 1 cm + 1 ppm (RMS); Vertical 1.5 cm + 1 ppm (RMS)
  • GNSS Bands/Systems: GPS L1/L2, GLONASS L1/L2, BeiDou B1/B2, Galileo E1/E5a
  • Hover Accuracy (with RTK): ±0.1 m (horizontal/vertical) when RTK is functioning properly
  • GSD (Ground Sample Distance): GSD ≈ H/36.5 cm/pixel (H in meters)
  • Mapping Accuracy: Meets ASPRS Class III (under stated conditions)
  • Camera Sensor: 1" CMOS, 20 MP effective
  • Lens: 24 mm eq., f/2.8–f/11, AF 1 m – ∞
  • Shutter: Mechanical 8–1/2000 s; Electronic 8–1/8000 s
  • Max Image Size: 4864×3648 (4:3); 5472×3648 (3:2)
  • Photo/Video Formats: Photo: JPEG; Video: H.264 up to 4K/30p
  • Gimbal: 3‑axis (tilt/roll/yaw), ±0.02° angular vibration
  • Battery (Flight): Intelligent Flight Battery 5870 mAh, 15.2 V, 89.2 Wh (LiPo 4S)
  • Remote Controller (built‑in display version): 5.5" 1080p, 1000 cd/m²; max link distance up to 7 km (FCC)
  • Workflow Integrations: TimeSync aligns FC/camera/RTK; supports NTRIP corrections and D‑RTK 2 Mobile Station; PPK workflows available
  • Mission Planning: GS RTK app with Photogrammetry and Waypoint modes; KML import; terrain awareness options

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