Tech IDIntroduction
The DJI Phantom 4 Pro / Pro+ is a flagship consumer and professional drone engineered for high-performance aerial imaging and precise flight control. With its robust feature set, advanced imaging capabilities, and intelligent flight modes, the Phantom 4 Pro / Pro+ is designed to meet the demands of both enthusiasts and commercial users seeking reliable, high-quality drone operations.
Crucially, the Phantom 4 Pro / Pro+ (Model: Phantom 4 Pro / Pro+) is certified under FCC ID SS3-GL300E1609, ensuring compliance with US regulations for radio frequency (RF) emissions. While the grant date is listed as “None,” this registration with the FCC signifies that the device meets stringent standards for electromagnetic interference and is legal to market and operate in the United States.
In this article, we’ll dive deep into the Phantom 4 Pro / Pro+ by DJI—covering its standout features, technical specifications, wireless technology, internal component analysis, and regulatory insights from its FCC filing. Whether you’re an engineer, drone enthusiast, or simply curious about what powers one of DJI’s premier drones, this teardown and analysis will provide expert-level detail and actionable insights.
Key Features & Specifications
The DJI Phantom 4 Pro / Pro+ is engineered for performance, reliability, and advanced imaging. Below are the critical features and technical specifications that set this drone apart:
Key Features
- DJI Intelligent Flight Battery (5870 mAh):
Provides extended flight times and reliable power delivery, crucial for professional aerial missions. - Enhanced DJI Lightbridge with Switchable 2.4 GHz and 5.8 GHz Frequencies:
Allows operators to select the optimal frequency band, minimizing interference and extending HD video downlink range up to 5 km. - Remote Controller with Customizable Buttons and Camera Controls:
Facilitates precise control and quick access to frequently used functions, improving pilot workflow. - Mechanical Shutter and Auto Focus:
Delivers sharper aerial images and prevents rolling shutter distortion, especially critical for high-speed or mapping applications. - Obstacle Avoidance During Return-to-Home:
Enhances safety by detecting and avoiding obstacles in the drone’s return path. - TapFly and ActiveTrack Intelligent Flight Modes:
Enables advanced automated flight maneuvers, empowering users to execute complex shots with ease. - 4K Video Recording at up to 60 Frames Per Second:
Captures ultra-high-definition, smooth video, suitable for professional film and survey work. - 20 Megapixel Still Photos with 1-inch CMOS Exmor R Sensor:
Ensures high-resolution, low-noise images even in challenging lighting conditions.
Technical Specifications
- Maximum Braking Distance in S-Mode: 50 meters (164 feet)
Enables rapid deceleration, increasing safety during high-speed flight. - Battery: 5870 mAh DJI Intelligent Flight Battery
Supports long missions without frequent recharging. - Remote Controller HDMI Port (GL300E):
Allows direct video output to external monitors for real-time FPV or broadcast. - Micro SD Slot (up to 128 GB) on Remote Controller:
Expands storage for high-resolution photo and video capture. - Aircraft Vision Positioning System:
Located on the bottom for stable indoor and low-altitude flight. - HD Video Downlink Range: Up to 5 km
Ensures a reliable, low-latency video feed over extended distances. - Mobile Device Connectivity (USB):
Seamless integration with smartphones or tablets for live view and control via the DJI GO app. - Customizable C1 and C2 Buttons on Remote:
Personalize control scheme for efficiency and ergonomics. - Bluetooth Present:
Enables auxiliary wireless functions (details not specified in FCC filing).
Camera & Imaging
- 1-inch CMOS Exmor R Sensor:
Provides superior dynamic range and image quality. - 4K Video at 60 fps; 20MP Photos:
Meets the requirements of demanding professional creators.
These specifications reflect a drone built for stability, range, and versatility, making the Phantom 4 Pro / Pro+ a top choice for aerial photographers, surveyors, and advanced hobbyists.
Operating Frequencies
The DJI Phantom 4 Pro / Pro+ (FCC ID SS3-GL300E1609) operates across several RF bands, as detailed in its FCC filing. These frequency ranges and output power levels are central to understanding its wireless capabilities and regulatory compliance:
| Frequency Range (GHz) | Output Power (mW) | FCC Rule Part |
|---|---|---|
| 2.404–2.4788 | 693 | 15CCC1.22.412 |
| 2.462 | 112 | 15CCC1.15.18 |
| 5.24 | 25 | 15E38 |
| 5.727–5.8213 | 279 | 15E38 |
| 5.745–5.825 | 18 | 15E38 |
These operating parameters are vital for ensuring robust connectivity, long-range HD video transmission, and minimal interference with other RF devices. The dual-band support (2.4 GHz and 5.8 GHz) is particularly important for environments with heavy Wi-Fi congestion, giving pilots flexibility and improved signal reliability.
Technology Deep Dive
The Phantom 4 Pro / Pro+ leverages advanced wireless technologies to deliver seamless control, long-range video downlink, and robust data connectivity. Its ability to operate on both 2.4 GHz and 5.8 GHz bands—supported by the enhanced DJI Lightbridge system—enables operators to choose the optimal frequency in real-time, reducing interference and maximizing range.
Bluetooth functionality is present (though specific details are not provided in the FCC summary), likely supporting auxiliary control or device pairing functions. The use of high output power in the 2.4 GHz band, combined with sophisticated RF design and external antennas, translates to a stable video feed and responsive control, even at distances up to 5 km.
Operating across multiple frequency bands allows the Phantom 4 Pro / Pro+ to maintain connectivity in challenging RF environments, while careful power management ensures efficient operation and extended battery life. The device’s EMI/RFI shielding, as observed in teardown photos, further protects sensitive electronics, reducing susceptibility to interference and ensuring compliance with regulatory limits.
In-Depth Internal Component Analysis / Teardown
Main System Board: High-Density, Multi-Layer PCB with Advanced Shielding
A closer look at the main PCB reveals a densely populated, high-quality board designed for robust performance and electromagnetic compatibility. Prominent integrated circuits include a large quad flat package (QFP) chip—likely the main processor or flight controller—supported by multiple BGA and QFN devices for memory and RF functions. Several metal shields cover sensitive areas, a hallmark of rigorous RF and EMI management. The board features a black soldermask, numerous microvias, and differential pair routing, indicating high-speed signal handling and a multilayer construction (6–8 layers). Power management is handled by sizable inductors and ceramic capacitors, while gold-colored U.FL connectors provide interfaces for external antennas—crucial for the drone’s long-range communication. The layout and modular design reflect DJI’s commitment to reliability, signal integrity, and flight stability.
Control/Processing Subsystem: Shielded, Modular PCB with Power Management
Examining a close-up of one of the drone’s internal PCBs, there’s a clear focus on both processing power and EMI control. A large fine-pitch QFP/TQFP chip dominates the view, likely serving as a core processor for flight control or video management. Surrounding it are smaller ICs, including probable voltage regulators and interface logic, supporting stable operations. The board’s black soldermask, moderate-to-high component density, and visible ground pours with via stitching all point to careful attention to signal integrity and noise suppression. A metal shield can covers a critical section—indicative of protected RF or analog circuitry. Test points and local power filtering components enhance manufacturability and reliability. This subsystem underscores the drone’s emphasis on robust control, high-speed data processing, and regulatory compliance.
I/O and Thermal Management Section: Robust Connectors and Active Cooling
The internal I/O section showcases DJI’s engineering for connectivity and thermal performance. Three primary connectors—a micro-USB port, a full-size HDMI output, and a USB-A port—provide versatile data, video, and accessory interfaces, essential for the Phantom 4 Pro / Pro+’s advanced imaging and live broadcast capabilities. This section is mounted to a substantial metal heatsink, complete with a small active cooling fan, ensuring that high-power ICs (such as video processors) remain within optimal temperature ranges during demanding operations. The robust mechanical design, integration of high-speed connectors, and focus on thermal and EMI management reflect the drone’s suitability for extended, high-performance missions. This modular approach also facilitates serviceability and future upgrades.
Regulatory Insights & FCC Filing
Certification under FCC ID SS3-GL300E1609 confirms that the DJI Phantom 4 Pro / Pro+ meets all US standards for RF emissions and electromagnetic compatibility. This legal compliance is a prerequisite for sale and operation within the United States, ensuring that the drone does not interfere with other wireless devices and operates safely within designated spectrum bands. The device is registered with the FCC (grant date: None), underscoring its adherence to federal regulatory requirements.
FCC filings typically include a wealth of technical documentation: RF exposure and EMC test reports, internal and external photographs, user manuals, schematics, and block diagrams. These documents not only demonstrate compliance but also provide transparency into the device’s design and operation.
Key insights from the user manuals filed with the FCC include:
- User-Manual-Part-1-3155849.pdf:
Offers comprehensive operational guidance, including setup, intelligent flight modes, safety features, and tips for maximizing the drone’s capabilities. - User-Manual-Part-2-3155850.pdf:
Details safety guidelines, intelligent flight systems, obstacle sensing, and battery management protocols. - User-Manual-Part-3-3155851.pdf:
Covers in-depth technical specifications, remote controller features, camera/gimbal operation, and integration with the DJI GO app.
These resources ensure that end-users have the knowledge to operate the Phantom 4 Pro / Pro+ safely and effectively, in line with regulatory expectations.
Potential Use Cases & Target Audience
With its combination of advanced imaging, robust wireless performance, and intelligent automation, the DJI Phantom 4 Pro / Pro+ is ideally suited for a range of demanding applications:
- Professional Aerial Photography & Cinematography:
The 1-inch CMOS sensor, mechanical shutter, and 4K/60fps video make this drone a top choice for filmmakers and photographers who require crisp, distortion-free images and cinematic video. The stable, low-latency HD video downlink allows real-time monitoring and direction. - Surveying, Mapping & Inspection:
Accurate obstacle avoidance, precise vision positioning, and long-range control enable effective mapping of large areas, infrastructure inspection, and construction site monitoring. The customizable controller and intelligent flight modes streamline complex missions. - Advanced Enthusiasts & Educators:
Hobbyists and educators benefit from the drone’s stability, intelligent modes (TapFly, ActiveTrack), and robust safety features, making it an excellent platform for learning, experimentation, and STEM education.
The dual-frequency Lightbridge system and customizable controls make the Phantom 4 Pro / Pro+ a versatile tool for anyone demanding professional-grade results and reliability.
Conclusion
The DJI Phantom 4 Pro / Pro+ (Model: Phantom 4 Pro / Pro+, FCC ID SS3-GL300E1609) stands as a benchmark in the drone industry, blending advanced imaging, intelligent control, and robust wireless technology. Its FCC certification assures users of regulatory compliance and operational safety, while teardown analysis reveals a meticulously engineered, high-quality internal design. Whether for professional content creation, surveying, or enthusiast flying, the Phantom 4 Pro / Pro+ remains a compelling choice for those seeking performance, reliability, and cutting-edge features in a UAV platform.
