Tech IDIntroduction
The DJI AGRAS MG-1S represents a leap forward in agricultural drone technology, blending DJI’s expertise in UAVs with robust features tailored for precision crop spraying. Designed for demanding field environments, the MG-1S integrates advanced flight control, obstacle avoidance, and efficient spraying systems to enhance productivity and ensure even coverage. As with all radio-frequency devices sold in the United States, the MG-1S has undergone rigorous regulatory scrutiny, and its FCC certification—under FCC ID SS3-AG4051701—attests to its compliance with U.S. electromagnetic emission standards. While there is no specific grant date listed, the device’s registration with FCC.gov confirms its legal status for sale and operation within the country.
This article delivers a comprehensive, expert-level breakdown of the DJI AGRAS MG-1S. We’ll dissect its standout features, core technical specifications, wireless operation details, and internal hardware—offering a rare teardown analysis based on detailed internal imagery. Additionally, we’ll cover regulatory insights from its FCC filings and highlight practical use cases for this sophisticated agricultural drone.
Key Features & Specifications
The DJI AGRAS MG-1S is engineered for high efficiency and reliability in agricultural applications. Below, we detail its standout features and technical specifications, explaining their practical benefits for drone operators and agronomists.
Key Features
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Micro SD Card Support (up to 128 GB):
The remote controller’s display device accepts micro SD cards up to 128 GB, enabling ample storage for flight logs, mission data, and firmware updates. -
Manual Obstacle Avoidance:
Operators can manually avoid obstacles during flight, adding a crucial safety layer when navigating complex field conditions. -
Android-Based Remote Controller with App Support:
The integrated Android system and app compatibility facilitate real-time monitoring, mission planning, and firmware management directly from the controller. -
Operation Resumption:
This function allows users to pause and resume spraying missions, ensuring efficient use of resources and uninterrupted coverage, even if operations are temporarily halted. -
Manual and Manual Plus Operation Modes:
Flexible flight modes give users granular control over spraying patterns and flight paths, accommodating both straightforward and complex agricultural scenarios. -
Adjustable Spray Rate and Flying Speed:
Operators can fine-tune spray output and flight speed via remote controller dials, optimizing efficiency for varying crop densities and field conditions. -
System Data Protection:
The system retains vital operational data for about one minute after power-off, reducing the risk of information loss due to unexpected shutdowns. -
Empty Tank Warning with Automatic Sprinkler Shutoff:
An intelligent warning system halts spraying when the tank is empty, preventing pump damage and ensuring even application.
Technical Specifications
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Remote Controller Battery:
2S rechargeable battery, 6000 mAh capacity—delivering extended operational endurance for multi-mission days. -
Maximum Flying Speed (Manual Plus Mode):
Up to 8 m/s, balancing rapid coverage with safe, controlled spraying. -
Terrain Follow System Range:
Operates between 1.5–4.5 meters above ground, leveraging microwave technology to maintain a consistent spraying height over varied terrain. -
Operation Gap:
Adjustable from 3m to 10m (default 5m), allowing users to set the lateral distance between consecutive spraying passes for optimal coverage. -
Remote Controller Micro SD Slot:
Supports cards up to 128 GB, ensuring ample storage for mission-critical data. -
Wireless Technologies:
- Wi-Fi: Present (details not specified)
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Bluetooth: Present (details not specified)
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Battery (Remote Controller):
2S rechargeable, 6000 mAh—supports prolonged field operations.
Benefits in Practice:
These features collectively enable the MG-1S to deliver precise, efficient, and safe agricultural spraying. Terrain-following and obstacle avoidance minimize operator workload and risk, while flexible control modes and data protection ensure mission reliability and ease of use.
Operating Frequencies
The DJI AGRAS MG-1S (FCC ID: SS3-AG4051701) operates on the following radio frequencies, as per its FCC filing:
| Frequency Range (GHz) | Output Power (mW) | FCC Rule Part |
|---|---|---|
| 2.408–2.4755 | 73 | 15C1 |
These parameters reflect the device’s wireless capabilities for telemetry, control, and possible data transmission between the drone and its remote controller. The 2.4 GHz band is standard for Wi-Fi and Bluetooth communications, offering a balance between range, data rate, and resistance to interference.
Technology Deep Dive
The AGRAS MG-1S leverages primary wireless technologies operating in the 2.4 GHz ISM band, including Wi-Fi and Bluetooth. This frequency range is favored for drone applications due to its robust penetration, resistance to interference, and global regulatory acceptance. The specified output power of 73 mW is typical for maintaining reliable links over moderate distances, suitable for agricultural field operations.
Operating within this spectrum allows the MG-1S to achieve stable telemetry and control, even in environments with moderate RF congestion. The use of both Wi-Fi and Bluetooth likely supports high-bandwidth video or data streaming (Wi-Fi) and low-latency command/control or pairing (Bluetooth). The moderate power output helps balance battery life with range, ensuring prolonged missions without excessive energy drain or RF emissions.
Design choices such as multi-layer PCBs and robust EMI shielding, as observed in the internal hardware, further enhance wireless performance by minimizing self-interference and maintaining signal integrity. While the FCC filings do not detail proprietary RF enhancements, the observed hardware supports advanced, reliable wireless operation essential for precision agriculture.
In-Depth Internal Component Analysis / Teardown
A close examination of the DJI AGRAS MG-1S’s internal hardware reveals a sophisticated, modular design focused on reliability, signal integrity, and high performance—hallmarks of DJI’s engineering ethos.
Dual Modular PCBs with High-Density Connectors and Power Conditioning
The internal modules showcase a high-density, multi-layer PCB layout, with a prominent main controller IC likely responsible for core communication or flight processing. The presence of robust board-to-board connectors and gold-plated spring contacts ensures secure data and power transfer within the drone’s modular architecture. Localized power regulation is evidenced by large capacitors and inductors, supporting stable operation under variable loads. The PCB’s ground pours and stitching vias, combined with a compact layout, indicate a design optimized for EMI control and serviceability—crucial for agricultural drones exposed to harsh environments.
PCB Assembly with RF Connectivity and Integrated Clock Sources
A more detailed PCB assembly reveals the integration of several medium-sized ICs—likely MCUs, signal processors, or RF transceivers—central to flight control and communications. The presence of two coaxial antenna cables with gold-plated connectors signals robust support for RF technologies such as Wi-Fi or telemetry, critical for maintaining reliable drone-to-controller links. The use of a blue, multi-layer PCB with differential pair routing and numerous test points exemplifies a high-quality, serviceable design. Local power regulation is handled by discrete inductors and capacitors, while integrated crystals provide precise clock sources for digital and RF subsystems. This assembly reflects a flight controller or communication interface board engineered for high reliability and modular integration.
RF Shielded PCB Section for Communication or Control
A dedicated PCB section features a prominent shielded area, likely housing sensitive RF circuitry or a communication processor. The blue multi-layer board, combined with a central BGA or QFN IC, supports high-frequency operation vital for telemetry and control. Multiple large capacitors and inductors ensure stable power delivery, while the presence of oscillators and test points highlights the board’s precision and serviceability. The extensive use of EMI shielding and grounding demonstrates meticulous engineering to minimize interference—essential for mission-critical UAV applications. This module is indicative of a subsystem tasked with robust, reliable wireless communication or advanced control functions within the MG-1S.
Power Electronics Board with High-Current Delivery
A section of the internal electronics is dedicated to high-power management, likely serving as an ESC (Electronic Speed Controller) or power distribution board. The black multi-layer PCB is densely populated with high-quality components, including two large Rubycon electrolytic capacitors rated at 33μF 270V—indicative of significant power conditioning for brushless motors. Thick, color-coded wires with protective sleeving underscore the focus on durability and safety in high-vibration, high-current environments. The arrangement of SOIC and SOT-23 packaged ICs, along with surface-mount resistors and capacitors, points to sophisticated power management and motor control functions. The overall build quality and layout reflect DJI’s commitment to reliability and performance in demanding UAV applications.
Regulatory Insights & FCC Filing
The AGRAS MG-1S, registered under FCC ID SS3-AG4051701, satisfies all U.S. requirements for electromagnetic emissions and radio frequency compliance. This certification, managed by FCC.gov, is essential for legal sale and operation in the U.S. market, ensuring the drone does not interfere with other wireless devices and operates safely within designated RF bands.
FCC filings for the MG-1S typically include essential documentation such as RF exposure and EMC test reports, detailed internal and external photos, user manuals, schematics, and block diagrams. These documents provide transparency into the device’s design, safety features, and operational guidelines. Notably, the ‘User-Manual-3310961.pdf’ offers comprehensive operational instructions, detailing flight and spraying modes, remote controller capabilities, and safety systems integral to agricultural use.
Through its FCC certification, the MG-1S demonstrates not only technical sophistication but also a commitment to regulatory compliance—a critical factor for commercial UAV deployment.
Potential Use Cases & Target Audience
Drawing on its advanced features and robust technology stack, the DJI AGRAS MG-1S is ideal for several high-value agricultural scenarios:
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Precision Crop Spraying:
Farmers and agronomists can deploy the MG-1S for targeted application of pesticides, fertilizers, or herbicides. The drone’s Terrain Follow System, which uses microwave technology, ensures uniform spraying even over uneven fields, optimizing yield while minimizing chemical usage. -
Large-Scale Farm Management:
Agricultural service providers and cooperatives benefit from the MG-1S’s operation resumption and data protection features, enabling efficient multi-field missions with minimal downtime. The adjustable operation gap and spray rate make it adaptable to a wide range of crop types and field layouts. -
Research and Demonstration:
Agricultural researchers and drone training centers can leverage the MG-1S’s flexible operation modes and comprehensive data logging for field trials, crop health assessment, and operator education. The manual obstacle avoidance and Smart Operation Mode further support safe, reliable experimentation.
While no specific target audience is listed, the MG-1S clearly addresses commercial growers, agricultural service companies, and research institutions seeking to modernize and streamline field operations.
Conclusion
The DJI AGRAS MG-1S (Model: MG-1S, FCC ID: SS3-AG4051701) stands out as a technologically advanced, regulation-compliant agricultural drone. Its robust feature set—ranging from precision terrain following to intelligent data protection—caters to the demanding needs of modern agriculture. The FCC certification under SS3-AG4051701 affirms its adherence to U.S. wireless and RF emission standards, ensuring safe, legal operation. With a modular, high-quality internal design and sophisticated wireless capabilities, the MG-1S exemplifies DJI’s leadership in commercial UAV solutions—delivering reliability, efficiency, and innovation to the field.
