In the evolving landscape of modern warfare, unmanned aerial vehicles (UAVs), particularly first-person-view (FPV) drones, have emerged as formidable threats. As conflicts like the Russia-Ukraine war highlight the growing role of drones, innovative detection systems are becoming critical for soldier safety. Two such devices, the Russian 3mx Bulat FPV drone detector and the Ukrainian Tsukorok, or “Sugar Cube,” are at the forefront of this technological arms race, offering vital early warnings to troops on the battlefield.

The 3mx Bulat: A Passive Shield Against Drone Threats

Recent footage has surfaced showing a Russian soldier equipped with the 3mx Bulat FPV drone detector, a device engineered to identify radio signals emitted by nearby FPV drones. The Bulat operates as a passive receiver, meaning it does not emit signals that could reveal the user’s position. Instead, it scans the radio spectrum for frequencies commonly used by FPV drone control links and video transmissions, typically in the 2.4 GHz, 5.8 GHz, and, in newer models, up to 7.2 GHz ranges. When a drone signal is detected, the device’s display illuminates with the message “FPV,” alerting the operator to potential aerial threats.

The Bulat’s detection range is impressive, reportedly extending to 1–1.5 kilometers in open terrain. In more complex environments, such as urban or forested areas, its range is reduced to approximately 600–800 meters. While effective, the Bulat’s passive design ensures it remains a discreet tool, allowing soldiers to maintain situational awareness without compromising their position.

The Sugar Cube: Ukraine’s Compact Game-Changer

On the Ukrainian side, engineers have developed an innovative solution known as the Tsukorok, or “Sugar Cube,” a portable drone detector designed to protect individual soldiers. This compact, man-portable device is proving to be a game-changer in countering the growing threat of drones, including suicide drones like the Lancet, ZALA-Kub, and FPV attack drones. When a drone enters its detection range, the Sugar Cube emits a loud beep, providing soldiers with critical seconds to take cover or respond.

The Sugar Cube’s portability and ease of use make it an ideal “personal protector” for infantry units. Its early warning capability is particularly crucial in environments where drones have become a persistent danger, as seen in the ongoing Russia-Ukraine conflict. By alerting troops to incoming UAVs, the device enhances survivability and situational awareness on the battlefield.

While both the Bulat and Sugar Cube represent significant advancements in drone detection, they are not without limitations. In drone-saturated environments, where multiple UAVs operate simultaneously, these devices can struggle to differentiate signals, potentially reducing their effectiveness. Additionally, their detection ranges are influenced by terrain and environmental factors, which can limit performance in complex settings.

Despite these challenges, both systems remain vital tools for modern infantry units. The Bulat’s passive detection and the Sugar Cube’s portability offer complementary approaches to addressing the drone threat, providing soldiers with critical time to react to aerial attacks.

As drones continue to reshape the battlefield, the development of compact, reliable detection systems like the 3mx Bulat and Sugar Cube underscores the importance of innovation in military technology. These devices, while not foolproof, represent a significant step forward in protecting soldiers from the growing menace of UAVs. With continued investment and refinement, such technologies could redefine how infantry units defend against aerial threats, offering a glimpse into the future of battlefield situational awareness.