B-DR8 400W 8-Band Backpack Drone Signal Blocker | 2km Long Range Quadcopter Jammer

A drone does not stay in the sky by itself. Behind every flight is a chain of radio signals — control links, video feeds, and positioning data working together in the background. Once one connection changes, another frequency often takes over. That is exactly why single-band interference is becoming less practical for modern FPV and UAV systems.

The B-DR8 400W backpack drone signal blocker integrates eight independent frequency bands into a single high-power platform, covering virtually all mainstream FPV control links, analog video, digital transmission, and GNSS/GPS signals.

Each of the above frequency bands has a corresponding button switch control, allowing you to perform interference as needed.

The quadcopter jamming device has a maximum operating range of 2 kilometers and is equipped with a 400W multi-band transmission module. Compared with its predecessor, the B-DR6, it has achieved a qualitative improvement in both interference range and output power. However, such high performance also brings severe heat dissipation challenges.

So, how does it maintain stable operation under high power conditions?

• The UAV frequency jammer is equipped with three large cooling fans and an industrial-grade thermal management system.
• The aluminum alloy chassis| provides additional passive cooling by spreading heat across the enclosure surface, while the active cooling system helps remove heat quickly.
• Together, these cooling solutions help maintain consistent performance and reliability, even during extended operation or in high-temperature environments.

Furthermore, the RF module, power system, and heat dissipation structure are integrated into a backpack-style chassis for easy portability during outdoor operations. Its high-capacity 24V 21000mAh battery provides up to 1 hour of battery life, and the system also supports AC 100–240V and DC 24V power input.