Tritel

Tritel is a Kyiv-based Ukrainian company, registered in 1999, that develops the Nota anti-drone electronic-warfare complex. Built up after Russia’s 2014 invasion of Ukraine and shown publicly from 2017–2018, Nota is a multifunctional system that detects and direction-finds enemy reconnaissance drones — Russian Orlan and ZALA types among them — jams their control links at ranges the developer puts at up to 20 kilometres, and can also suppress cellular networks. It fuses several sensing principles into one picture: passive radio direction-finders, a radar station, and acoustic and electro-optical sensors, feeding a single intelligence-collection environment. The updated version pairs the complex with the “Saygak” digital phased-array radar from the state Arsenal corporation.

The system is offered in portable, man-portable and vehicle-mounted forms. A mobile variant built on a Kozak-2 armoured chassis premiered in 2019, and Tritel presented an upgraded Nota to Ukraine’s armed forces in 2021. The Poroshenko Foundation reported investing UAH 150 million to speed the system to front-line units. Igor Senchylo, named in Ukrainian defence press as a Tritel director, has argued that tactical “digital special forces” teams should each field three to four Nota variants to cover the full electromagnetic-warfare task set — while conceding that Ukrainian units are not yet fully structured to operate such complexes.

A single 2018 report attributed the Nota system to a company called “RADION,” but no other source corroborates this and the attribution appears to be a one-off error; Tritel is the consistently named manufacturer across Ukrainian defence press. Tritel works in the same detection-and-jamming space as Kvertus and the tactical-comms firm Himera , though recent reporting notes that large vehicle-based electronic-warfare systems of Nota’s class are being pushed back from the front line by fibre-optic drones that fly immune to radio jamming.