Technical Analysis: Frequency Coverage and Defense Mechanisms of 300MHz-6GHz Fixed FPV Detection and Jamming Systems

In the current field of low-altitude defense, the asymmetric threat posed by FPV (First-Person View) drones is increasingly prominent. Due to their flexible communication bands and high maneuverability, traditional single-band defense is no longer sufficient. The QV-560A fixed FPV detection and jamming system, with its wide-spectrum frequency coverage and integrated design, provides a high-reliability defense solution for critical infrastructure.

To ensure stability in complex electromagnetic environments, the system strictly follows industrial-grade specifications in hardware configuration and technical standards, avoiding signal overflow or detection blind spots.

• Frequency Range: The system covers an ultra-wide band from 300MHz to 6GHz. This parameter ensures comprehensive coverage from conventional 2.4GHz/5.8GHz video transmissions to unconventional frequency-hopping signals, achieving rapid identification through full-spectrum scanning of FPV video signals.

• Detection Distance: Under conditions where the equipment and the drone have a relative Line of Sight (LOS), the effective detection radius is ≥2km.

• Jamming Distance: Utilizing precise suppression technology, the jamming distance is ≥800m (with a signal-to-interference ratio of 2.5:1 and relative LOS), ensuring targets are effectively intercepted before entering core restricted areas.

• Compact Design: The device dimensions are maintained at ≤260260310mm with a weight of ≤4kg. This parametric design ensures flexibility for fixed installations or vehicle-mounted deployments.

• Operational Stability: The system is engineered to operate continuously in harsh ambient temperatures ranging from -40°C to 55°C (±2°C variance), meeting all-weather operational requirements from sub-zero regions to high-heat industrial zones.

The technical core of the QV-560A lies in its integrated "detection and jamming" closed-loop logic.

By performing high-speed scanning of the electromagnetic spectrum within the 300MHz-6GHz range, the system utilizes high-sensitivity algorithms to extract unique FPV video transmission signal characteristics. Compared to traditional radar detection, this signal-feature-based detection method offers a lower false alarm rate and effectively distinguishes environmental noise from actual threats.

Once a threat is confirmed, the system targets the specific frequency to emit jamming signals, disrupting the drone's video feed and control links. This causes the target to lose navigation capabilities or triggers a fail-safe landing. Optimized circuit design allows the system to maintain high jamming efficiency while operating with low power consumption, extending component lifespan and reducing long-term maintenance costs.

The QV-560A fixed system, through its 300MHz-6GHz full-band coverage and rigorous industrial parameters, addresses the critical challenges of detection and neutralization in FPV defense. For B2B operators requiring long-term, stable low-altitude protection, this technical solution—built on verifiable data and standardized engineering—provides a reliable choice for securing restricted airspace.