Murmansk-BN

Russia's strategic-level shortwave jammer — the GT-01 Murmansk-BN — is a truck-borne electronic-warfare complex that raises 32-metre telescoping antenna masts to detect, direction-find and suppress high-frequency (HF) radio across the whole 3–30 MHz band. Its target is NATO's long-haul communications — including the US HF Global Communications System — and Russian sources claim it can reach 5,000 km, and up to 8,000 km in ideal ionospheric conditions. Fielded in Kaliningrad, occupied Crimea and the Arctic, it is one of the largest mobile EW systems in the world.

Overview

Murmansk-BN is a strategic, fully mobile HF electronic-warfare and signals-intelligence complex. It automatically scans wide swaths of the shortwave spectrum, locates HF emitters by direction-finding, and jams them — aiming squarely at the long-range radio links that armies, navies and air forces fall back on when satellites and line-of-sight links are denied. Per Army Recognition and Station HYPO, its main task is to suppress NATO's HF networks (3–30 MHz), including the US HF Global Communications System (HFGCS) and HF satellite links. Because HF propagates by bouncing off the ionosphere, the system exploits skywave to reach far beyond the horizon — which is also why its real performance depends heavily on atmospheric conditions. It is a network-centric, strategic-echelon asset, not a front-line tactical jammer.

Development

Murmansk-BN was developed under KRET (Concern Radio-Electronic Technologies) within the Rostec state corporation, accepted into Russian service around 2014 and fielded from 2016. It is built for reach rather than mobility-of-the-moment: a complex comprises groups of up to four extendable antenna masts up to 32 metres tall, two of them each carried on a dedicated KamAZ or Ural truck with a further antenna towed on a trailer, per planesandstuff. Setting it up takes time and a large footprint. In Kaliningrad it is operated by the 841st Separate EW Center of the Russian Baltic Fleet, which received the system in 2018, according to Defense Express. On 3 August 2024 Army Recognition reported that Iran had acquired several Russian long-range EW systems including the Murmansk-BN — a notable export of a strategic capability.

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