Rebel Group develops Brama FPV electronic warfare system

Rebel Group has developed a stationary electronic-warfare and signals-intelligence system that combines detection, analysis, and directional jamming against FPV drone communications within a single installation. Brama has completed laboratory and range testing and is now moving through Ukraine’s military codification process for potential use by the Defence Forces.

The system addresses a specific part of the FPV threat rather than every type of uncrewed aircraft communication. Rebel Group says Brama detects the frequency used for analogue video transmission, decodes the feed, and can then jam both the video channel and the aircraft’s control channel using directional electronic warfare. No operating range, output power, frequency coverage, deployment quantity, or unit price has been disclosed.

The integration of electronic intelligence and electronic attack is the central technical point. A conventional arrangement may use one system to detect and characterise radio-frequency activity and another to apply interference. Brama is intended to reduce that separation by allowing an operator who has identified a relevant signal to move directly into jamming without additional equipment.

Detection and jamming share one operating chain

Analogue FPV video provides a useful electronic signature because the aircraft continually transmits imagery back to its operator. Detecting that transmission can reveal the presence of a drone even where visual identification is difficult, while decoding the feed may provide additional information about what the aircraft is observing and whether it poses an immediate threat.

Brama then uses directional jamming rather than treating the whole radio-frequency environment as a target. Concentrating interference towards the relevant source can reduce unnecessary disruption elsewhere, although actual performance will depend on antenna characteristics, transmitter power, geometry, terrain, the target’s communications equipment, and the distance between the system and the aircraft.

Those variables are particularly important in electronic warfare because the target does not remain technically static. FPV communications can shift between frequency bands and equipment families, while operators can alter antennas, power levels, modulation, control links, and video systems relatively quickly. A system optimised around one commonly encountered transmission method therefore needs an upgrade path if it is to remain useful as the threat changes.

Brama’s disclosed role should also be kept narrow. Rebel Group has described detection and decoding of analogue video followed by disruption of the video and control channels. The company has not claimed that the current system can defeat every autonomous drone, satellite-controlled platform, frequency-hopping digital link, or fibre-optic FPV aircraft. Those represent different technical problems and should not be folded into the system’s capabilities without evidence.

The stationary configuration shapes how the system is likely to be used. Unlike a handheld jammer or vehicle-mounted installation, a fixed system can support persistent monitoring of a defined area with antennas, processing equipment, power, and operator interfaces arranged around a prepared position. That makes it suitable for protecting locations or sectors where an enduring electronic picture is more valuable than tactical mobility.

Codification is the next industrial threshold

Rebel Group says Brama has completed laboratory and proving-ground testing and is undergoing codification for the Ukrainian Defence Forces. That process is significant because military codification creates the administrative route through which equipment can move beyond developer trials towards recognised procurement, supply, support, and inventory management.

The company already operates in electronic warfare and signals intelligence. Its current product portfolio includes several radio-electronic countermeasure systems and generations of SIGINT equipment, while Rebel Group says its existing devices have undergone testing at Ukrainian General Staff proving grounds and are used by military formations.

Brama therefore extends an existing engineering base rather than establishing a new discipline inside the company. Integrating detection and attack nevertheless introduces its own design requirements. Sensors, signal processing, operator displays, electronic countermeasure hardware, antennas, power systems, cooling, software, and communications all have to work as one controlled system.

Electromagnetic compatibility becomes important inside the installation itself. A system designed to detect relatively weak signals must also operate next to equipment deliberately transmitting interference at much higher power. The design has to prevent its own jammer from overwhelming the receiving equipment or creating conditions in which sensing becomes ineffective whenever electronic attack is active.

Operator workload is another practical measure. Detection is useful only if relevant transmissions can be separated from background activity quickly enough to support a response. The public information does not state how much classification is automated, whether several targets can be processed simultaneously, or how many operators are required to maintain coverage.

Production details remain equally limited. Rebel Group has not announced an order quantity, serial-production rate, customer contract, or delivery date. Brama is consequently best described as a tested system seeking formal military codification rather than equipment already fielded across Ukraine in disclosed numbers.

That distinction matters in a sector where prototypes can emerge much faster than industrialised products. Moving from a successful range demonstration to repeatable manufacture requires controlled component supply, assembly procedures, test equipment, software configuration, documentation, training, repairs, and a support organisation capable of keeping deployed systems operational.

Recent counter-UAS programmes have increasingly combined several sensors and effectors rather than relying on a single defeat mechanism. IN Defence has also tracked systems combining RF and optical sensing with electronic and kinetic responses, reflecting the difficulty of covering a rapidly changing drone threat with one technology alone.

Brama occupies a narrower part of that wider architecture. Its purpose is to shorten the chain between electronic detection and electronic attack against FPV communications, giving an operator one system through which relevant analogue video can be found, interpreted, and disrupted.

The next useful evidence will come from codification and procurement rather than another demonstration. Approval for military use, disclosed production, deployment numbers, and operational feedback will show whether the architecture can move from a tested engineering solution into a sustainable part of Ukraine’s electronic-warfare inventory — and whether it can evolve as quickly as the FPV communications it is designed to counter.