// Acoustic Detection Network
FENEK
- Manufacturer
- Octava Defence
- Status
- Codified
Key specifications
- Hears Shahed-type drones at up to 3 km, cruise missiles at up to 5 km
- Fully passive: also detects fibre-optic drones that emit no radio signal
- Codified for Ukraine’s armed forces; listed in the NATO Master Catalogue
FENEK / Octava Defence
Overview
FENEK, made by Octava Defence, is a network of small microphone masts. Each mast hears a drone or missile and works out the direction of the sound; several masts together fix its position, course and speed on a map. Because the system only listens, enemy electronic sensors cannot find it, and it hears fibre-optic drones that radio detectors miss. The maker gives detection ranges of up to 3 km for Shahed-type drones and up to 5 km for cruise missiles. FENEK is codified for use by Ukraine’s armed forces and entered in the NATO Master Catalogue of References for Logistics.
Sources
- Militarnyi, 1 May 2026
- Defender Media, Jul 2025
- Brave1 Market, Oct 2026
Public figures as reported by the company and the press, with dates. Independent verification is part of our vetting process and is shared with counterparties under NDA.
