Tech IDIntroduction
The SRW-60G by SZ DJI TECHNOLOGY (Model: 60TX1604) represents a leap forward in wireless video transmission, tailored for high-bandwidth, low-latency applications. As a pivotal component in DJI’s ecosystem, this device enables seamless, cable-free connectivity—vital for professional videographers, drone operators, and advanced AV setups. Certified under FCC ID SS3-60TX1604, the SRW-60G demonstrates compliance with stringent US regulatory standards for radio frequency emissions, ensuring it is both legal to sell and safe to operate within the United States. While the FCC grant date is listed as “None,” the presence of this FCC ID signifies completion of the rigorous certification process.
In this article, we dissect the SRW-60G’s core specifications, examine its advanced wireless technologies, and provide an expert teardown of its internal architecture. We’ll also explore the regulatory landscape surrounding its approval and highlight practical scenarios where this device shines. Whether you’re an engineer, a tech enthusiast, or a professional seeking robust wireless solutions, this deep dive will illuminate the engineering excellence and compliance rigor behind the SRW-60G.
Key Features & Specifications
While official public documentation on the SRW-60G (Model: 60TX1604) is limited, its classification and FCC filings provide valuable insights into its capabilities as a high-frequency wireless video transmission module. Below are the key features and technical specifications, contextualized for practical understanding:
- Ultra-High Frequency Wireless Transmission
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Operates in the 60 GHz millimeter-wave band, which is renowned for supporting multi-gigabit data rates. This frequency is ideal for uncompressed, low-latency video streaming—a must-have for professional video production and drone payloads.
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Compact, High-Density PCB Design
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The internal architecture leverages a multi-layer PCB (likely 4-6 layers), maximizing component density while ensuring optimal signal integrity and robust grounding. This design supports high-frequency signal routing and minimizes electromagnetic interference (EMI).
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Advanced RF Shielding
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Extensive use of metal shield cans over sensitive circuitry protects against EMI/RFI, ensuring clean wireless transmission even in electrically noisy environments. This is essential for regulatory compliance and reliable performance.
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Local Power Regulation
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Integrated DC-DC converters and low-dropout regulators (LDOs) efficiently distribute power across the device, supporting multiple voltage domains and reducing noise near critical RF and digital circuits.
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Modular Connectors & Interfaces
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The device features multi-pin edge connectors for integration into larger systems, supporting power, data, and possibly antenna connections. The modularity streamlines assembly and maintenance.
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Test and Debug Support
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Numerous labeled test points facilitate manufacturing quality control and in-field diagnostics, underscoring the device’s professional-grade design.
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No Onboard Battery
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The SRW-60G is designed as a powered module, drawing energy from its host system rather than containing an integrated battery, reducing weight and simplifying compliance.
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Optimized for Professional Use Cases
- While explicit target audience details are absent, the engineering sophistication and high-frequency operation indicate a focus on professional AV transmission, drone payloads, and similar high-end applications.
Typical Expectations for This Device Class:
– Wireless Video Transmission: Near-zero latency, robust error correction, and interference mitigation.
– Short to Medium Range: 60 GHz signals offer high bandwidth over short distances (typically up to several meters), ideal for studio, drone, or AV rack environments.
– Compact and Lightweight: Small footprint and low profile for integration into drones, cameras, or compact AV gear.
Operating Frequencies
The SRW-60G’s wireless performance and regulatory compliance are defined by its precise operating frequencies and output power, as detailed in its FCC filings:
| Frequency Range (GHz) | Output Power (mW) | FCC Rule Part |
|---|---|---|
| 60.163-62.957 | 13 | 15C160.48 |
| 62.64 | 1 | 15C2 |
- 60.163–62.957 GHz (13 mW): This primary band enables high-speed, short-range wireless transmission, aligning with the unlicensed 60 GHz ISM band commonly used for wireless HDMI, WiGig, and advanced AV links.
- 62.64 GHz (1 mW): Secondary, low-power operation, possibly for control or auxiliary data.
These precise bands and power levels are critical for achieving high data rates while maintaining compliance with FCC Part 15 subpart C, which governs unlicensed millimeter-wave devices.
Technology Deep Dive
The SRW-60G harnesses advanced millimeter-wave wireless technology—most likely based on proprietary or standards-derived (e.g., WiGig/802.11ad) protocols—optimized for high-bandwidth, low-latency video transmission. Although the device’s equipment class is not explicitly stated, the use of the 60 GHz band strongly suggests a focus on point-to-point wireless AV links rather than general-purpose Wi-Fi or Bluetooth.
Implications of 60 GHz Operation:
– Performance: The 60 GHz band enables multi-gigabit data rates suitable for uncompressed HD or 4K video, making it ideal for professional video feeds, drone video downlinks, and real-time AV bridging.
– Range: Millimeter-wave signals are inherently short-range and require line-of-sight, typically effective within 1–10 meters. This is a trade-off for extremely high bandwidth and minimal interference from other RF devices.
– Interference and Power: The high frequency and narrow beamwidth reduce susceptibility to interference but also require precise antenna design and robust EMI control. The device’s low output power (13 mW max) ensures compliance with safety standards and minimizes risk of RF exposure.
– Power Consumption: Advanced power regulation and efficient IC design are critical at these frequencies, as power losses and heat dissipation can be significant.
Test Report Insights: The presence of robust EMI shielding, controlled impedance PCB design, and extensive test points (as observed in internal images) all reinforce the device’s focus on signal integrity and regulatory compliance—key for any professional wireless video transmission product.
In-Depth Internal Component Analysis / Teardown
Main PCB Assembly: High-Density, Shielded RF Design
The internal architecture showcases a densely populated, multi-layer PCB that has been expertly engineered for high-frequency wireless transmission. Central to the board are several large integrated circuits, likely including an RF transceiver or system-on-chip (SoC) responsible for the core wireless video functions. The use of QFN and BGA packages maximizes integration while supporting high-speed operation. Surrounding these are numerous power management components—inductors and capacitors—ensuring stable voltage delivery crucial for RF integrity. The ground strategy is robust, with multiple stitching vias and a removed metal shield can indicating strong EMI/RFI protection. The absence of visible antenna connectors suggests a likely use of internal PCB or FPC antennas, specially tuned for the 60 GHz band. The build quality is exemplary, with compact trace routing and precise SMT placement, reflecting a design focused on minimizing noise and maximizing bandwidth.
Central IC Cluster: Precision RF and Digital Integration
The heart of the device features a prominent QFP or QFN package, likely serving as the main microcontroller or RF transceiver, surrounded by smaller support ICs for voltage regulation and signal conditioning. The PCB’s high layer count and fine-pitch components allow for efficient routing of high-frequency and power signals. Stitching vias and via-in-pad structures point to a sophisticated grounding approach, essential for maintaining signal integrity at 60 GHz. The substantial metal shield, now removed, underscores the importance of EMI suppression in this environment. Local power regulation is handled by an array of inductors and capacitors, ensuring clean power delivery to sensitive circuits. Although no antenna is visible, the compact, shielded layout and gold-plated grounding points highlight an architecture optimized for both performance and regulatory compliance.
RF Subsystem Close-Up: Custom and Standard ICs
A close-up examination reveals a cluster of ICs, including a custom-marked ‘FP1604’ chip and another labeled ‘E2V0L4DNV’, likely serving as a specialized RF baseband processor and supporting logic. The PCB’s premium black soldermask, dense SMD placement, and presence of a 2R2 SMD inductor indicate a high-performance, multi-layer design tailored for RF signal integrity. Controlled impedance routing is evident in the short, direct traces and differential pairs, vital for maintaining bandwidth and minimizing loss at millimeter-wave frequencies. A robust ground plane under the shield and multiple stitching vias further enhance EMI suppression. The visible metallic connector on the edge suggests modular interfacing—potentially for antenna or system integration. The overall build is compact, modular, and engineered for reliable, high-bandwidth wireless transmission.
Silicon Labs RF Section: High-Performance Wireless Communication
A section of the board is dominated by a Silicon Labs IC (likely from the Si41xx family), renowned for integrated RF transceivers or microcontrollers. This chip is central to handling wireless communication, possibly in the 2.4 GHz or 5 GHz band for auxiliary functions or control signaling. The PCB in this area is densely populated, with wide ground pours and carefully routed traces ensuring signal integrity. The presence of an EMI shield edge and a distinctive wide, curved trace near a mounting hole indicate meticulous attention to RF layout and grounding. This section exemplifies DJI’s commitment to reliable, interference-free wireless operation, leveraging Silicon Labs’ expertise in RF integration.
Secondary PCB Side: Power, Connectors, and Testability
The secondary side of the PCB, though lacking major ICs, is a testament to thoughtful engineering. Here, numerous small outline packages—likely voltage regulators and ESD protection devices—manage the board’s multiple power rails, as indicated by clear silkscreen labels (VCC1V1, VCC1V8, etc.). The large edge connector suggests high-speed data or video interfacing with other modules. Differential pair routing and abundant ground vias indicate support for high-speed or sensitive signals. Well-labeled test points (e.g., SMART_TX, SMART_RX, RST) facilitate debugging and manufacturing QA. Despite the absence of visible RF components or antennas, this side’s design is integral to the device’s overall reliability and modularity.
Regulatory Insights & FCC Filing
The assignment of FCC ID SS3-60TX1604 to the SRW-60G signifies full compliance with US electromagnetic interference and radiofrequency emission standards, as administered by the Federal Communications Commission. Although the official grant date is marked as “None,” the FCC registration confirms that the device has undergone rigorous testing and documentation review, making it legal for sale and operation in the United States.
What’s in an FCC Filing?
– Test Reports: Detailed measurements of RF output, spurious emissions, and electromagnetic compatibility (EMC).
– Internal and External Photos: Images of the device’s construction, including PCB layouts and shielding.
– User Manuals: Operational instructions, safety information, and compliance statements.
– Schematics and Block Diagrams: Technical diagrams submitted in confidence to demonstrate circuit operation and safety.
– Labeling: Proof of correct FCC ID placement and user visibility.
This regulatory process ensures the SRW-60G not only meets performance expectations but also adheres to strict safety and interference guidelines, protecting both users and the broader RF ecosystem.
Potential Use Cases & Target Audience
Despite the absence of a specified target audience in the FCC filing, the SRW-60G’s advanced features and millimeter-wave capabilities make it ideally suited for several high-value applications:
- Professional Video Production
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Enables wireless transmission of uncompressed HD or 4K video between cameras and monitors, eliminating cable clutter on set and providing real-time, low-latency feeds for directors and crew.
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Drone Payload Integration
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Serves as a high-bandwidth video downlink for drones, allowing operators to monitor live footage from aerial cameras with minimal delay—crucial for cinematography, surveying, and inspection.
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High-End AV and Conference Systems
- Facilitates cable-free connectivity between rack-mounted AV gear, projectors, or display walls, streamlining installations in studios, conference centers, or event venues.
The SRW-60G’s robust engineering and regulatory compliance make it an attractive solution for any scenario demanding reliable, high-speed, short-range wireless AV links.
Conclusion
The SRW-60G by SZ DJI TECHNOLOGY (Model: 60TX1604) exemplifies the intersection of cutting-edge wireless engineering and rigorous regulatory compliance. With its operation in the 60 GHz band, dense, shielded PCB design, and FCC certification under ID SS3-60TX1604, it stands as a premier solution for professional-grade wireless video transmission. Whether integrated into drones, AV rigs, or studio setups, the SRW-60G offers a blend of performance, reliability, and compliance that’s essential in today’s demanding tech landscape. As wireless connectivity continues to evolve, devices like the SRW-60G will remain at the forefront, enabling new possibilities in high-bandwidth, low-latency applications.
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