Patria’s electronic support measures surveillance Catchr system mounted on a mobile platform. (Patria Group)
Finland’s Patria Group unveiled its electronic support measures (ESM) surveillance system Catchr at the EW Live 2025 event in Tartu, Estonia, according to the company’s 23 September press release.
Catchr is used for intercepting, geolocating, and tracking radar emitters for situational awareness and surveillance. According to the system’s technical specifications, its use cases include networked tactical surveillance, support of long-range signal intelligence gathering, validation of electronic intelligence (ELINT) databases, ground-based air-defence support, and strengthening electronic warfare (EW) operations.
Catchr’s frequency range is 2–18 GHz. The system’s signal recording and analysis includes real-time spectrum monitoring and pulse analysis. The pulse analysis entails pulse repetition interval (PRI), pulse duration (PD), radio frequency (RF), modulation, and scan pattern, according to Patria.
Capabilities provided for operators include a situational awareness map, track activity dashboard, sensor-level ESM display, spectrum monitoring display, post-mission analysis, mission management tools, command-and-control (C2), and technical signal analysis tools.
The system’s sensor is an interferometer antenna unit, a power distribution unit, and an ESM sensor server unit. Catchr’s interfaces include STANAG 4658 CESMO (NATO Cooperative ESM Operations) and STANAG 4676 NITS (NATO intelligence, surveillance, and reconnaissance [ISR] Tracking Standard). CESMO is an Internet Protocol (IP)-compliant middleware that enables EW data to be exchanged across compliant networks such as Link 16.
Further analysis and assessment online:
Keysight Technologies to supply new NATO radar and ESM test system
Saab’s Sirius Compact L20C sensor to be produced at new Finnish facility
Viper and Resolve: Roke develops new electronic support measures
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