Ukrainian company Kara Dag Technologies continues to extend the capabilities of its Obriy wearable drone detector.
The Obriy system is a battlefield-tested personal drone detector that warns the wearer of hostile FPV drones out to a typical range of 2.5 km and potentially out to 5 km, giving the wearer plenty of time to react and take cover. The first version was created around two years ago and the system is currently in mass production.
As explained to ESD by company COO Andrew Poberezhniuk at Poland’s MSPO 2025 defence exhibition at Targi Kielce on 3 September, the system is widely used in the Ukraine War to protect both forward-deployed Ukrainian military personnel as well as civilians living in proximity to the front line. The system is fully autonomous, with little to no training required for its use, and weighs around 380 g with antennas fitted.
The basic Obriy 1.3 warning system can be integrated with a jamming system for more comprehensive protection from FPV drones. Additionally, a mobile app can be used to display the intercepted video feed of basic hostile FPV drones, enhancing situational awareness with regard to the threat. An Android app can also be added that detects and displays the frequency being used to control hostile FPV drones in the vicinity, which can provide vital information for optimising the performance of local jamming systems.
The current-generation Obriy 1.3 system detects hostile FPV drones using their video signals and can detect drones using the frequencies 1080-1360 MHz, 2370-2510 MHz (or 2700-4040 MHz) and 4900-6050 MHz (the typically used 1.2, 2.4 and 5.8 GHz bands used by drones). About three months ago, meanwhile, Kara Dag Technologies introduced the Obriy 1.4 system that added an integral video screen to the drone detector (instead of externally for the Obriy 1.3) to display the video feed from hostile FPV drones, while under development is the Obriy 1.5 system that will detect drones using frequencies ranging all the way from 0.3 to 7 GHz, a prototype of which is expected in the coming months.
Further ahead, Kara Dag Technologies is developing its next-generation Obriy 2.0 system, which will add artificial intelligence (AI) capabilities and exploit mesh radio network technologies to triangulate the location of hostile FPV drones.
The company is also developing a compact, lightweight detection module for installation in unmanned aerial vehicles, unmanned ground vehicles and unmanned surface vessels to protect such platforms from hostile drones. Weighing just 130 g, this solution can detect enemy digital and analogue FPV signals at the following frequencies: 1080–1360 MHz, 2370–2510 MHz or 2700-4040 MHz, and 4900–6050 MHz. As well as informing the platform operator about the presence of enemy drones, the detection module can also facilitate the performance of evasive manoeuvres. The module’s detection distance can be adjusted according to customer requirements.