Fixed Site LIDS (FS-LIDS)

Also known as

FS-LIDS
Fixed-Site LIDS
Fixed Site-Low, Slow, Small Unmanned Aircraft System Integrated Defeat System
Low, Slow, Small UAS Integrated Defeat System

Fixed Site LIDS (FS-LIDS) is the U.S. Army's fixed-site Low, Slow, Small Unmanned Aircraft System Integrated Defeat System, built to protect bases and other static sites from small drones. SRC's brochure and CENTCOM reporting show a layered architecture that combines sensors, command and control, electronic warfare, and Coyote interceptors in a fixed-site counter-UAS stack.

Fixed Site LIDS (FS-LIDS), Fixed-site counter-UAS system, Air Defense

Image source: FS-LIDS offers key protection from drones

Profile / Specs

Profile

Origin: United States
Built by: SRC Inc.RaytheonNorthrop Grumman
Type: Fixed-site counter-UAS system
Service note: 2020s-present
Unit cost: About $100 million per system, derived from a $1 billion Qatar package for 10 FS-LIDS systems

air defense counter-uavfixed-siteradar command and control electronic warfare

Specifications

System type: Fixed-site counter-UAS architecture
Deployment: Static or relocatable site defense
Sensors: Radar, direction-finding sensors, and EO/IR cameras
Defeat layers: Electronic warfare and Coyote interceptors
Command and control: FAAD C2-linked networked defense

Coyote Interceptor

FS-LIDS is documented with Coyote as part of its fixed-site kinetic-defeat layer.

Compatible item

Item type

Compatibility evidence

Coyote counter-UAS interceptor / drone, Counter-UAS interceptor drone, Air Defense

Coyote counter-UAS interceptor / drone

Counter-UAS interceptor

The Army says Coyote integrates into fixed-site LIDS, and the SRC brochure places Coyote in the fixed-site kinetic-defeat stack.

Sources: Army announces rapid acquisition authority contract for Coyote Interceptors, LIDS Family of Systems Brochure

Service And Conflict Use

Service History

In service: Fielded as a fixed-site counter-UAS layer for Army installations and other static sites; 2022 foreign military sales approval for Qatar showed export interest in the family.
Used by: U.S. Army

Media

Fixed Site LIDS (FS-LIDS) Images

Fixed Site LIDS (FS-LIDS), Fixed-site counter-UAS system, Air Defense - view 1 — Source: FS-LIDS offers key protection from drones

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Sources

FS-LIDS offers key protection from dronesPublisher: CENTCOM Citadel | Note: Supports FS-LIDS background, fixed-site counter-UAS role, component suite, Coyote integration, and image provenance for the article image. | Accessed: 2026-06-27 LIDS Family of Systems BrochurePublisher: SRC, Inc. | Note: Supports SRC manufacturer context, the LIDS family background, and the fixed-site and mobile layered architecture described for the family of systems. | Accessed: 2026-06-27 Qatar 22-36 CNPublisher: Defense Security Cooperation Agency | Note: Supports the Qatar FS-LIDS foreign military sales package, the ten-system quantity, the roughly $1 billion program value, and the principal-contractor context. | Accessed: 2026-06-27 Army announces rapid acquisition authority contract for Coyote InterceptorsPublisher: U.S. Army | Note: Supports the Army's Coyote interceptor background and the public-domain article image used in the gallery. | Accessed: 2026-06-27