CRFS

verified This business has been claimed by CRFS and verified by UST.
Verified companies work with us to ensure we display the most up-to-date and comprehensive product information, articles and other material to help you choose the right solution for your requirements.
RFeye Technology: Turn any unmanned system into an EW & SIGINT asset United Kingdom
Visit Website
Saved
Save
Contact
CRFS

RFeye Technology: Turn any unmanned system into an EW & SIGINT asset

Cambridge Radio Frequency Systems (CRFS) is a global leader in software-defined RF technology and SIGINT (Signals Intelligence) payloads for unmanned systems, with extensive experience in the design and manufacture of advanced hardware and software solutions for detecting, monitoring, and analysing RF signals in complex operational environments.

As spectrum congestion and signal density increase, the company continues to advance sophisticated RF technologies that address evolving operational and regulatory challenges across the spectrum domain, supporting national spectrum regulators, defence organisations, and security and intelligence agencies worldwide.

RFeye Technology

Turn any unmanned platform into a passive RF sensing asset capable of detecting, identifying and geolocating enemy emitters in real time.

RFeye technology enables military and security organizations to map and exploit the electromagnetic spectrum through passive RF sensing across the air, land, and maritime domains. It delivers real-time spectrum awareness in even the most complex electromagnetic environments.

Built on open standards, and combining EW payloads with onboard edge processing for unmanned systems and advanced spectrum software, RFeye technology helps operators understand the electromagnetic environment faster than their adversaries, enabling them to find first, understand first, and act first.

As modern warfare becomes increasingly defined by the ability to deploy unmanned systems to sense, understand, and exploit the electromagnetic environment, RFeye technology provides the trusted intelligence needed to seize and maintain the tactical initiative.

RFeye technology provides OEM-ready RF sensing subsystems for integration into autonomous platforms.

  • Detect enemy emitters beyond line of sight
  • Provide passive ISR from UAVs
  • Cue cUAS systems
  • Extend air-defence coverage
  • Geolocate radio transmissions
  • Send data to SIGINT standoff aircraft

Integration successes on unmanned systems

CRFS SIGINT Payloads for UAVs

  • Integrated on TEKEVER AR3
  • Operationally tested during REPMUS 2025
  • Chosen for Rheinmetall SkyRanger
  • Integrated into Kraken USVs
  • NATO operational deployments
  • Thousands of operational sensors

Why RFeye technology?

  • Passive
  • Detect unknown emitters
  • 3D geolocation
  • 40 GHz
  • Edge processing
  • Open APIs
  • One sensor many missions
  • COTS
  • TRL-9
  • Available in 12 weeks

Why RFeye Technology

System Architecture

Integrating RFeye technology into an unmanned system

RFeye technology combines RF payloads, edge processing, software, and open APIs into a single distributed sensing ecosystem that scales from a single UAV to unmanned sensor networks.

Designed for Integrators

  • OEM-ready subsystem
  • Open APIs
  • Low SWaP
  • Modular payload
  • Tactical radio compatible
  • Edge processing
  • Third-party C2 integration

Missions enabled by SIGINT Payloads on UxS

ISR

  • Beyond LOS
  • Persistent monitoring
  • Enhanced situational awareness at the tactical edge

Air Defence

  • cUAS
  • Early warning
  • Sensor cueing

EW

  • Autonomous mass
  • Edge sensing
  • Modular payloads

Decision advantage

  • Persistent coverage
  • Resilient operations
  • Accelerated targeting cycles

CRFS Guide for System Integrators
CRFS provides sub-systems for system integrators requiring RF capabilities in larger systems or platforms. Download the guide for an introduction to solutions and applications.

RF Payloads for Unmanned Systems

RFeye sensors are software-defined SIGINT payloads that enable passive spectrum sensing, emitter detection, and precision geolocation. Designed for SWaP-constrained unmanned platforms, highly-sensitive RFeye Nodes have open architecture and edge processing.

Operationally proven with NATO partners and deployed in demanding environments worldwide, RFeye Nodes deliver TRL 9 passive RF sensing for modern ISR, EW, and autonomous operations.

RFeye Node 100-18 LW RFeye Node 100-18LW
Small UAVs (class 2)

Ultra-low SWaP RF payload covering 9 kHz–18 GHz for passive sensing

RFeye Node Plus 100-18 RFeye Node Plus 100-18
Larger UAVs (class 3-5), UGVs, USVs

High-performance 9 kHz–18 GHz payload with 100 MHz I/Q recording and streaming for enhanced detection, POI and signal intelligence

RFeye Node 100-40 RFeye Node 100-40
Advanced ISR and EW platforms

Wideband 9 kHz–40 GHz RF payload with extended frequency coverage

Every RFeye Node provides:

  • Passive RF sensing with no emissions
  • Open APIs for third-party software integration
  • Edge processing to minimize bandwidth requirements
  • Network-ready architecture for distributed sensing
  • Rugged military design (IP67)
  • RFeye software ecosystem
  • TRL 9 operational maturity
  • Detect, recognize, identify, and locate (DRIL) workflow

From Payload To Capability

Turn RF data to actionable intelligence

When deployed, SIGINT-enabled unmanned systems connect to form distributed sensing networks that detect, analyze, and share RF intelligence across the operational environment.

turn RF data to actionable intelligence

RFeye Site software transforms individual sensors into an integrated capability, allowing operators to manage networks of unmanned systems, analyze signals, and geolocate emitters.

Whether connected via tactical radio, LTE/5G, SATCOM, or mesh networking, RF intelligence (through APIs) can provide C2 systems with actionable intelligence in real time and be fused with any other data collected by the unmanned systems.

RFeye Site software RFeye Site
Visualise

Real-time spectrum monitoring & geolocation toolkit

RFeye Mission Manager RFeye Mission Manager
Manage

Automated spectrum monitoring & mission management

RFeye APIs APIs
Integrate

Seamlessly integrate RFeye software into your proprietary system

Many companies offer an RF payload. RFeye technology offers a distributed electromagnetic sensing architecture that turns swarms of unmanned systems into a collaborative RF intelligence network.

Products

RFeye Node 100-18LW
RFeye Node 100-18LW

Lightweight RF sensing for small UAVs

RFeye Node Plus 100-18
RFeye Node Plus 100-18

Wideband RF sensing for uncrewed platforms

RFeye Node 100-40
RFeye Node 100-40

Wideband RF sensing for ISR and EW platforms

RFeye Site
RFeye Site

Real-time spectrum monitoring and advanced signal geolocation toolkit

RFeye Mission Manager
RFeye Mission Manager

Automated spectrum monitoring software for uncrewed operations

RFeye DeepView
RFeye DeepView

Forensic signal analysis software with 100% probability of intercept

Articles

The Role of RF-Enabled C-UAS in Advanced Air Mobility
Latest
The Role of RF-Enabled C-UAS in Advanced Air Mobility

CRFS examines the role of RF-enabled C-UAS technology in supporting Advanced Air Mobility through passive airspace monitoring, threat detection, UTM integration, spectrum monitoring, and the management of evolving security challenges

Jul 10, 2026
Why Counter-UAS Strategies Must Evolve to Address USVs & UGVs
Why Counter-UAS Strategies Must Evolve to Address USVs & UGVs

CRFS examines how the increasing use of unmanned surface and ground vehicles is driving the need for broader counter-RAS capabilities beyond traditional counter-UAS operations

Jun 22, 2026
Meet CRFS at Leading Defense, Electronic Warfare & Security Events in 2026-2027
Meet CRFS at Leading Defense, Electronic Warfare & Security Events in 2026-2027

Join CRFS at leading international defense and security exhibitions to explore advanced RF sensing, spectrum monitoring, and electromagnetic operations technologies

Jun 05, 2026
Software-Defined RF Sensors & SIGINT Payloads for Drones & UxVs
Software-Defined RF Sensors & SIGINT Payloads for Drones & UxVs

CRFS' products have been selected by NATO and other defence organisations and security and intelligence agencies worldwide

Apr 14, 2026
Regional Offices & Locations
UK Office United Kingdom Unit 1, Bourn Quarter, Wellington Way, Cambridge, CB23 7FW +44 (0)1223 859 500 Contact Website
USA Office United States of America 12001 Sunrise Valley Dr, Suite 204, Reston, VA 20191 +1 571 321 5470 Website
Advancing Unmanned Systems Through Strategic Collaboration UST works with major OEMs to foster collaboration and increase engagement with SMEs, to accelerate innovation and drive unmanned systems capabilities forward.