FC.K¶

To break a drone’s link a jammer must first find it, so every jammer is a listener before it is anything else. The FC.K listens across the whole spectrum from an armoured truck, and one of the things it was built to find is the phone network around it. Seventy went to Ukraine’s army with a Member State’s money and NATO’s stamp.

A drone jammer on an armoured truck, built by the Ukrainian firm First Contact with the Berlin cryptophone maker GSMK and paid for by the German government under the Ramstein format. Militarnyi reported on 6 February 2026 that the last of seventy had been delivered to Ukraine’s army; Defense Express had counted the first thirty in August 2025.

Seventy trucks¶

The FC.K rides on a Kozak-5 armoured chassis and is worked from a remote workstation, so its crew sits away from it. First Contact claims it detects, analyses and jams a drone’s control link and its video and telemetry channels, in several jamming modes, with its own software under cryptographic protection. The seventy passed NATO codification and certification.

Two later variants, the FC.KP on the same chassis and the FC.MP on a Mercedes Unimog, cover 20 MHz to 6 GHz, pick up the emissions of a drone’s own electronics, locate ground control stations at tens of kilometres, run from minus 30 to plus 55 degrees, and carry three electronic-support sensors and an Osa-R reconnaissance drone of First Contact’s own.

It maps the base stations¶

One function on the list is not about drones. The GSMK part of the system identifies, analyses and locates mobile network base stations. A truck sent to break a drone’s link also knows where every cell around it stands. None of the three articles asks what it keeps of that. Attacks D2 and D6 are both on this one truck: the link broken, the phone network mapped.

Last reviewed: 2026-09-25.