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Counter-drone & directed energy2021–presentProfile in progress
Portable anti-drone weapon
EDM4S is a portable anti-drone weapon originating in Lithuania.
LithuaniaTrue scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 1.05 m | Wikipedia contributors | approved |
| 1 Oct 2026 | 1.05 m | Wikipedia contributors | superseded |
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Portable anti-drone weapon
Lithuania
2021–present
See Operators
Russo-Ukrainian War
NT Service UAB
c. 2018
around $15,000
EDM4S-UA Skylock Skybeam
5.5 kg (12 lb)
1,050 mm (41 in)
220 mm (8.7 in)
360 mm (14 in)
3–5 km (1.9–3.1 mi)
The EDM4S or EDM4S SkyWiper ( Electronic Drone Mitigation 4 - System ), is a portable electronic warfare anti-drone device produced and developed by the Lithuanian company NT Service.
The device can be carried by one person. The operator points the device at the UAV and activates it to disrupt the UAV's communications out to a range of 3–5 km (2–3 mi), as well as its satellite navigation capabilities. Depending on the UAV's level of autonomy , it may then fall out of the sky, make a controlled landing, return to an earlier waypoint, or continue operating normally.
The device can have 4 or 6 antennas. By default there are two antennas for the 2.4 GHz and 5.8 GHz frequency bands, with a power of 10 W each, one antenna for the GPS 1.5 GHz band with a power of 10 W, and one antenna for the GLONASS 1.5 GHz band with a power of 10 W.
The device is made of aluminium , with the "gun" portion being modelled after the Heckler & Koch G36 rifle – including a trigger to activate the device and optics for sighting. It weighs 5.5 kg and measures 1050 × 220 × 360 mm with the stock extended (830 × 220 × 360 mm without the stock extended). It is powered by a 24 V battery , which can last for up to 60 minutes.
EDM4S SkyWiper Drone Jammer Lithuania
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
EDM4S equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Lithuania
Nigeria
Romania
UkraineReported count for EDM4S. Country-wide list; no individual service specified. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): number: 110. Origin: Lithuania. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.