78

DJI Mini 2 by DJI: FCC ID SS3-MT2WD2007 – In-Depth Teardown, Specs & Regulatory Analysis

The DJI Mini 2 by DJI is a compact, ultralight drone designed to empower photographers and videographers with professional-grade aerial imaging in a remarkably

Introduction

The DJI Mini 2 by DJI is a compact, ultralight drone designed to empower photographers and videographers with professional-grade aerial imaging in a remarkably portable form factor. Weighing less than 249 grams, the Mini 2 is engineered for ease of use, making it an ideal gateway for beginners and hobbyists while offering advanced features that appeal to seasoned drone enthusiasts. With its robust flight modes, stabilized camera, and extended battery life, the Mini 2 is tailored for capturing stunning 4K video and high-resolution stills in almost any environment.

A crucial aspect of the DJI Mini 2’s legitimacy and market presence is its FCC certification, specifically under FCC ID SS3-MT2WD2007. This regulatory approval confirms the drone’s compliance with stringent US standards for radio frequency emissions and electromagnetic compatibility, ensuring it is both safe and legal to operate within the United States. The FCC’s thorough testing process guarantees that the device will not cause harmful interference and meets all required safety benchmarks.

In this article, we’ll take an expert look at the DJI Mini 2’s key features and technical specifications, dissect its wireless technology and operating frequencies, analyze its internal components through detailed teardown imagery, and review its regulatory standing. Whether you’re a drone aficionado, a consumer considering your next aerial camera, or a tech professional interested in the latest in compact UAV design, this comprehensive analysis will deliver deep insights into one of DJI’s most popular drones.


Key Features & Specifications

The DJI Mini 2 stands out in the crowded drone market with an impressive combination of advanced features, intelligent design, and user-friendly operation. Below, we break down its core capabilities and technical parameters to illustrate what sets this model apart.

Key Features

  • Multiple Flight Modes:
  • Normal, Sport, Cine, and ATTI modes offer versatile options for speed, maneuverability, and cinematic footage, catering to both beginners and experienced pilots.
  • Vision and Infrared Sensing Systems:
  • The downward vision system and infrared sensing enable precise hovering and stable flight indoors or in GPS-challenged environments, improving safety and flight accuracy.
  • QuickTransfer Mode:
  • Supports high-speed file downloads directly to your mobile device, reaching up to 20 MB/s for rapid, hassle-free media transfers.
  • Fully Stabilized 3-Axis Gimbal:
  • Ensures ultra-smooth video and blur-free stills, even in windy conditions or during rapid maneuvers.
  • Downward Vision System:
  • Optimizes landing and low-altitude flight, maintaining consistent altitude and position for safer, more reliable operation.
  • Trimmed Download:
  • Allows users to quickly select and download the best parts of footage, streamlining content creation.
  • Maximum Flight Speed:
  • Achieves speeds of up to 36 mph (57.6 kph) in Sport mode, providing agility for dynamic shots and fast repositioning.

Technical Specifications

  • Maximum Descent Speed:
  • Sport Mode: 3.5 m/s
  • Cine Mode: 1.5 m/s
  • Remote Controller Maximum Runtime:
  • Up to 6 hours on a single charge, enabling extended field sessions.
  • QuickTransfer Download Rate:
  • Up to 20 MB/s (5.8 GHz)
  • Up to 6 MB/s (2.4 GHz)
  • Maximum Flight Time:
  • Up to 31 minutes per battery charge under optimal conditions.
  • Remote Controller Frequencies:
  • Operates on both 2.4 GHz and 5.8 GHz bands for enhanced connectivity and reduced interference.
  • Downward Vision System Altitude:
  • Optimal: 0.5 to 10 meters
  • Operating Range: 0.5 to 30 meters

Additional Technical Highlights

  • Wireless Connectivity:
  • Wi-Fi: Supports both 2.4 GHz and 5.8 GHz bands for control and video transmission.
  • Bluetooth: Present (details not specified), likely used for device pairing and remote control setup.
  • Camera System:
  • Shoots 4K video and 12MP photos with a 1/2.3” sensor, delivering crisp, vibrant aerial imagery.
  • Battery:
  • Provides a maximum flight time of 31 minutes, emphasizing efficiency and endurance for its weight class.

In summary, the DJI Mini 2’s feature set is engineered for both ease of use and professional results, making it a standout choice for anyone seeking a portable, high-performance drone.


Operating Frequencies

The DJI Mini 2 (FCC ID SS3-MT2WD2007) operates across a range of frequencies, each carefully regulated to support its various communication and control functions. Below is a summary of the wireless frequency allocations and output power as detailed in its FCC documentation:

Frequency Range (GHz) Output Power (mW) FCC Rule Part
2.402–2.48 2.8 15CCC1.12.4055
2.452 19.7 15CCC1.35.7285
2.4565 38.1 15CCC1.62.422
2.462 39.3 15CCC1.22.4175
2.4655 38.4 15CCC1.42.40912
2.46712 37.2 15CCC1.52.4105
2.4725 181.6 15CCC1.82.412
2.4765 184.1 15CCC1.72.4075
5.795 38.6 15ECC2.25.775
5.825 39.4 15ECC2.15.755
5.8395 251.8 15ECC2.85.745
5.8445 38.1 15ECC2.45.73012
5.8445 39.7 15ECC2.65.7325
5.8445 250.6 15ECC2.75.7355
5.84612 37.8 15ECC2.55.7305

These allocations are essential for understanding the device’s wireless performance, range, and compliance with US regulations. The drone leverages both the 2.4 GHz and 5.8 GHz bands for robust remote control and video transmission, balancing range and resistance to interference.


Technology Deep Dive

The DJI Mini 2’s wireless architecture is built around dual-band Wi-Fi and proprietary DJI communication protocols operating in the 2.4 GHz and 5.8 GHz ISM bands. These frequencies are standard in consumer electronics for their balance of range, bandwidth, and resistance to environmental noise. The inclusion of Bluetooth (presence confirmed, details unspecified) suggests additional support for device pairing and quick setup with companion apps.

The distributed output power levels across the frequency spectrum, as documented in FCC filings, indicate careful tuning to maximize transmission range while adhering to regulatory constraints and minimizing interference with other wireless devices. The higher output in portions of the 5.8 GHz band supports reliable high-speed QuickTransfer downloads and low-latency video feeds, while the 2.4 GHz band ensures robust long-range control, especially in environments crowded with competing signals.

These technologies, combined with advanced RF front-end design and EMI shielding, enable the Mini 2 to deliver stable, interference-resistant connections for both flight control and media transmission. Test reports referenced in the FCC documentation confirm compliance with all relevant emission and exposure standards, underscoring the device’s safe integration of powerful wireless features in a compact package.


In-Depth Internal Component Analysis / Teardown

GNSS Receiver Module with Ceramic Patch Antenna

A dedicated GNSS receiver module is a highlight of the Mini 2’s navigation system. The prominent ceramic patch antenna is optimized for GPS L1 band reception, ensuring high-accuracy positioning vital for stable flight and return-to-home functionality. The PCB’s robust design, featuring gold-plated mounting holes and protective potting compound, reflects a focus on signal integrity, environmental protection, and tamper resistance. This modular approach allows for easy upgrades and reliable integration into the drone’s main flight systems.

GNSS module with ceramic patch antenna for precise GPS reception.
GNSS module with ceramic patch antenna for precise GPS reception.

Main Flight Controller and Power Distribution Assembly

With the upper casing removed, the Mini 2 reveals a high-density main PCB hosting a central flight controller, surrounded by motor drivers, power management ICs, and robust connectors. The GPS module is clearly visible, linked to the system via a dedicated patch antenna. The careful layout, differential signal routing, and dense via placement speak to a sophisticated design balancing EMI control, processing power, and efficient power delivery. The visible camera/gimbal assembly and brushless motors demonstrate the drone’s integration of flight, imaging, and control subsystems.

Main PCB with flight controller, GPS module, and camera gimbal interface.
Main PCB with flight controller, GPS module, and camera gimbal interface.

Electronic Speed Controller (ESC) Power Board

A key component is the multi-phase ESC board, characterized by four major ICs likely serving as motor drivers, supported by an array of capacitors and inductors for power filtering and decoupling. The compact, multi-layer construction and gold-plated connector emphasize modularity and reliability, ensuring precise control and efficient power delivery to the Mini 2’s four brushless motors. This board exemplifies DJI’s commitment to robust, integrated power electronics in a lightweight form factor.

ESC board with multi-phase motor drivers and power management.
ESC board with multi-phase motor drivers and power management.

Densely Integrated Mainboard with Shielded RF Sections

The mainboard features multiple shielded sections covered with thermal interface material, housing critical ICs for flight control, wireless communication, and sensor processing. The extensive use of EMI/RFI shielding, high-density FPC connectors, and multi-layer PCB construction supports high-speed data, robust RF performance, and effective thermal management. The layout and component selection are optimized for the demands of a compact, high-performance UAV.

Mainboard with shielded RF, flight control, and sensor processing sections.
Mainboard with shielded RF, flight control, and sensor processing sections.

Mainboard with Power, Logic, and Sensor Integration

On another view of the mainboard, large EMI shields and blue thermal pads cover critical ICs for processing, memory, and RF communication. High-density connectors facilitate modular connections to the camera, gimbal, and other subsystems. The presence of large inductors and capacitors points to robust power management, while reinforced mounting holes ensure vibration resistance. This board exemplifies sophisticated integration of compute, RF, and sensor domains within strict weight and size constraints.

Mainboard section with power management and sensor integration beneath EMI shields.
Mainboard section with power management and sensor integration beneath EMI shields.

Partial Internal View: Sensors, Connectors, and Modular Assembly

A partially disassembled perspective reveals the PCB edge populated with power management ICs, connectors, and the dual downward-facing sensors essential for altitude hold and indoor flight. The central black structure acts as a heat sink or EMI shield, protecting sensitive electronics. The visible gimbal assembly and modular connectors illustrate the Mini 2’s focus on serviceability and subsystem integration, supporting real-time flight control and high-speed communication.

Partial internal view showing sensors, connectors, and gimbal assembly.
Partial internal view showing sensors, connectors, and gimbal assembly.

Flight Control and Communication Module

A densely populated PCB is visible, dominated by EMI shields and blue thermal pads. Exposed sections reveal BGA and QFN packages likely serving as the main flight controller and RF transceivers. The presence of coaxial connectors for antennas underscores the importance of reliable wireless communication. Multiple board-to-board connectors and extensive power filtering components support the drone’s high-speed data and robust RF links, all within a compact, modular design.

Flight control and communication module with extensive EMI shielding.
Flight control and communication module with extensive EMI shielding.

Shielded RF/Signal Processing Module

This compact PCB module features a prominent metal shield, likely protecting a wireless transceiver or SoC. The multi-layer construction, fine-pitch FPC connector, and gold-plated mounting holes highlight a focus on EMI control, signal integrity, and modular integration. The presence of a crystal oscillator suggests precise RF timing, and the board’s design is consistent with a critical communication or sensor interface within the Mini 2’s architecture.

Shielded RF/signal processing module for wireless communication or sensor interfacing.
Shielded RF/signal processing module for wireless communication or sensor interfacing.

Flight Controller or ESC Module

A square, densely populated PCB is home to a central microcontroller, smaller sensor or power management ICs, and multiple MOSFETs arranged for motor control. Gold-plated headers and labeled solder pads facilitate modular assembly and debugging, while the multilayer construction and careful via placement ensure robust power and signal integrity. This board likely serves as a core flight controller or ESC module, underpinning the drone’s reliable, responsive flight characteristics.

Flight controller or ESC module with central MCU and motor drivers.
Flight controller or ESC module with central MCU and motor drivers.


Regulatory Insights & FCC Filing

The FCC ID SS3-MT2WD2007 certifies that the DJI Mini 2 meets all US requirements for electromagnetic compatibility and RF emissions, making it fully legal for sale and operation in the United States. This certification, registered with FCC.gov, attests to the drone’s compliance with rigorous standards designed to prevent interference with other wireless devices and ensure user safety.

FCC filings for the Mini 2 include a wealth of documentation: RF exposure and EMC test reports, high-resolution internal and external photographs, detailed user manuals, and technical diagrams. These documents confirm that the device has undergone comprehensive testing for radiofrequency output, electromagnetic emissions, and safe operation across its supported frequencies.

Internal documentation and the user manual provide further insights into the drone’s operational safeguards, including battery management, flight safety features, and wireless system configuration. The extensive internal photos and block diagrams available in the FCC filing highlight DJI’s emphasis on modularity, EMI shielding, and robust design, all of which contribute to the Mini 2’s reliability and regulatory compliance.


Potential Use Cases & Target Audience

The DJI Mini 2 is purpose-built for a diverse range of users and scenarios:

  • Aerial Photography and Videography for Enthusiasts:
    Hobbyists and content creators can leverage the Mini 2’s stabilized 4K camera and intelligent flight modes to capture cinematic shots, time-lapses, and panoramic images with ease. The foldable, ultralight design allows for spontaneous shooting sessions anywhere.

  • Travel and Adventure Documentation:
    Weighing less than 249 grams and featuring a foldable frame, the Mini 2 slips effortlessly into a backpack or travel bag, making it the perfect companion for travelers and outdoor adventurers seeking to document landscapes, action sports, or memorable moments from a unique perspective.

  • First-Time Drone Users and Beginners:
    With intuitive controls, multiple safety features, and a user-friendly remote controller offering up to six hours of runtime, the Mini 2 lowers the barrier to entry for new pilots. Its robust hovering capabilities, automatic return-to-home, and stable flight performance inspire confidence and safe operation.


Conclusion

The DJI Mini 2, under FCC ID SS3-MT2WD2007, exemplifies the fusion of portability, advanced imaging, and wireless technology in a consumer drone. Its comprehensive FCC certification underscores DJI’s commitment to regulatory compliance and user safety, while its sophisticated internal architecture and intelligent features make it a standout in the ultralight drone category. Whether you’re a hobbyist, traveler, or aspiring aerial photographer, the Mini 2 offers dependable performance, professional-grade results, and peace of mind—solidifying its place as a leader in the compact UAV market.

Related Documents

Tech ID

Leave a Reply

Your email address will not be published. Required fields are marked *