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NT Service UAB EDM4S (Sky Wiper)

Electronic Drone Mitigation System [ 2020 ]

The Lithunanian EDM4S is a communications jammer of unmanned drone aircraft and has seen combat exposure in the ongoing war in Ukraine.

Authored By: Staff Writer | Last Edited: 08/04/2022 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The EDM4S is a hand-held, trigger-actuated infantry-level drone neutralization solution for the modern battlefield. Of Lithuanian origination, the system is intended for use by military / security forces against small-to-medium unmanned aerial targets (drones). The solution is manufactured by NT Service UAB of Kaunas, Lithuania and the product was debuted at the 2019 Security and Counter Terror Expo in London. Its designation stands for "Electronic Drone Mitigation 4 - System".

The EDM4S is billed as a simple-to-operate, one-man, "point-and-shoot" anti-drone solution. The operator aims the system towards the intended airborne target and a pull of the trigger activates an Electro-Magnetic Pulse (EMP) effect resulting in a partial, or complete, interruption of the drone's communication signal(s). Depending on the complexity of the drone target, this may result in the aircraft falling out of the sky, reversing course (automatically) to return to its launch point or last waypoint, or executing an emergency landing. The weapon has a range out to 5 kilometers.

Thanks to its predominantly aluminum frame, the complete system weighs 12lb (5.5kg) and has an overall length of 41 inches (1,050mm) with the stock fully extended, 32.6 inches (830mm) otherwise. Its general arrangement is that of a standard infantry rifle complete with pistol grip / trigger unit and optics set. A 24V battery pack supplies the needed power and offers operating times in the range of 35 minutes for continuous use. An accompanying battery charger supplies battery renewal.

The modern Ukrainian Army has been actively using EDM4S systems against Russian drones following the Russian invasion of Ukraine in February 2022.©MilitaryFactory.com
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May 2022 - The EDM4S drone jammer has been photographed in the hands of Ukrainian forces in its battle against Russia.


Service Year

Lithuania national flag graphic


Electronic Drone Mitigation System

National flag of Lithuania National flag of Russia National flag of Ukraine Lithuania; Russia (captured units); Ukraine
(OPERATORS list includes past, present, and future operators when applicable)
Ability to engage low-flying aerial threats.
Special Forces
Qualities of this weapon have shown its value to Special Forces elements requiring a versatile, reliable solution for the rigors of special assignments.
Special Purpose
Special purpose weapon for a specially defined battlefield role.
Asymmetric Warfare
Design is highly variable / low-cost based on battlefield requirement and available materials; general use is in urban settings against an organized foe for high casualty count.

Despite its size / weight, the product can be transported by foot infantry.
Supports silenced / suppressed actions - by way of silencer, suppressor, or subsonic ammunition - for clandestine operations.
Internal action allows release of single round per trigger pull, actuating a semi-automatic loading mechanism for successive shots.
An automatic, or pseudo-automatic, function is built into the system, allowing for repeat firing to be achieved.
Supports mounting of optics (scopes) to aid in accuracy for ranged fire.
Ease-of-use coupled with relative simplicity of combined components makes this entry a cost-effective solution for unconventional elements / fighting forces.

Overall Length
1,050 mm
41.34 in
Barrel Length
1,050 mm
41.34 in
Empty Wgt
12.13 lb
5.50 kg

Integrated Optics Set.


Trigger Pull.

(Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information)


Not Applicable.

Rounds / Feed

35 Minutes of Battery Life.
Cartridge relative size chart
*May not represent an exhuastive list; calibers are model-specific dependent, always consult official manufacturer sources.
**Graphics not to actual size; not all cartridges may be represented visually; graphics intended for general reference only.
Max Eff.Range
16,405 ft
(5,000 m | 5,468 yd)

EDM4S ("Electronic Drone Mitigation 4 System") - Base Series Designation.

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