Description

Company Overview
Crown Software-Defined-Radio Technology Ltd. specializes in the research, development, and production of systems that use Radio Frequency (RF) and other electronic means for counter-unmanned aerial systems (C-UAS). Their core technology is Software-Defined Radio (SDR), which makes their systems highly flexible and upgradable to counter new drone threats.

Core Anti-Drone System Specifications
A typical integrated anti-drone system from Crown is a multi-part system. Here’s a breakdown by component and its specs:

1. Detection Subsystem (The “Eyes and Ears”)
This is often a multi-sensor fusion system, primarily relying on RF detection.

Technology:

RF Spectrum Analysis: The primary method. It scans for and identifies the communication signals (command & control, and video transmission) between the drone and its pilot.

Radar (Optional): Used for long-range detection and tracking, especially effective against drones with little or no RF emission (e.g., on pre-programmed routes). Specs for their radar modules are rarely disclosed but are likely in the C-band or X-band for small target detection.

Electro-Optical/Infrared (EO/IR) Camera (Optional): Provides visual confirmation, identification, and tracking. Used after an RF detection to get a positive visual on the target.

Key Specs (Inferred from Public Data):

Detection Range: Typically 3 km to 5 km for standard consumer drones. Can be extended with more powerful systems.

Frequency Range: Covers common drone communication bands, including 2.4 GHz and 5.8 GHz, as well as GPS/GLONASS/BeiDou satellite navigation frequencies.

Number of Targets: Capable of detecting and tracking multiple drones simultaneously (often cited as dozens in a dense environment).

Detection Probability: Claimed to be very high (>95%) for common T-Motor and similar drones.

2. Countermeasure Subsystem (The “Muscle”)
This is where the system neutralizes the threat. Wuhan SDT focuses heavily on radio frequency neutralization.

Primary Technology:

GNSS Jamming: Jams the satellite navigation signals (GPS, GLONASS, Galileo, BeiDou) that the drone uses for positioning. This causes the drone to enter a “hover,” “land,” or “return-to-home” failsafe mode.

Command & Control (C2) Jamming: Jams the 2.4GHz/5.8GHz signal between the pilot’s remote controller and the drone. This severs the pilot’s control.

Spoofing (More Advanced): A more sophisticated technique where the system impersonates a legitimate GPS signal or the pilot’s controller, tricking the drone into flying to a safe location or landing.

Key Specs (Inferred from Public Data):

Neutralization Range: Generally slightly less than the detection range, often cited between 1 km to 3 km, depending on the drone and environment.

Jamming Bands: Covers all major GNSS bands (L1, L2, L5) and ISM bands (2.4G, 5.8G).

Response Time: The system can automatically or manually initiate jamming within seconds of a confirmed detection.

Effectiveness: Marketed as highly effective against the vast majority of commercial drones, which rely on these open RF protocols.

3. Platform and Deployment
Form Factors:

Fixed/Static Systems: For permanent protection of critical infrastructure like airports, government buildings, and prisons.

Vehicle-Mounted Systems: Integrated into SUVs or vans for mobile, rapid response protection for events or VIP movements.

Man-Portable Systems: Backpack-sized units for dismounted soldiers or special forces for tactical, on-the-move operations.

Summary Table of Key Specifications
Feature Specification / Capability
Manufacturer Wuhan Software-Defined Radio Technology Co., Ltd.
Common Product Line “Sky-Watcher”  Series
Core Technology Software-Defined Radio (SDR)
Primary Detection RF Spectrum Analysis (2.4G, 5.8G, GNSS)
Detection Range 3 – 5 km (for typical consumer drones)
Primary Neutralization GNSS & Control Link Jamming
Neutralization Range 1 – 3 km (situational)
Target Capacity Multiple simultaneous drones (dozens)
Deployment Options Fixed-site, Vehicle-mounted, Man-portable
Automation Capable of automatic detection, tracking, and neutralization
Important Context and Considerations
Export and Use: These systems are known to be exported and have been seen in use by various military and security forces internationally. Their presence has been documented in conflict zones.

Effectiveness Against Advanced Drones: While highly effective against commercial drones, the system’s effectiveness can be reduced against military-grade drones using frequency hopping, encrypted links, or autonomous navigation without RF links.

Collateral Impact: RF jamming is a broad-spectrum tool. In an urban environment, jamming GNSS and Wi-Fi bands can disrupt more than just the target drone, affecting nearby devices and systems. This is a common limitation for all RF-based C-UAS systems.

In conclusion, Crown Technology Ltd provides a sophisticated, SDR-based anti-drone solution that focuses on the electronic “takeover” or disruption of a drone’s vital communication and navigation links. Their specifications place them as a competitive and capable player in the global counter-drone market.

Crown Technology Ltd.

Multispecialty Supplier

Located in Hong Kong,Shenzhen CN

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