CRFS blog

Major RFeye software release announcement

Written by RFeye Marketing | Oct 29, 2026, 10:31:50 AM

Introducing three significant updates that together will transform RFeye operators’ ability to plan, deconflict, manoeuvre, and execute EMSO missions in heavily contested radio frequency (RF) environments.

1. RFeye Site Signal Discovery

A new RFeye detector – instantly find and turn unknown RF signals into actionable data.

2. Wideband Geolocation Scan

Transforms a single wideband capture into 50+ real-time 2D/3D TDoA geolocations per second.

3. RFeye Core v2.25.5

An enterprise-grade, defence-ready software solution – not a lab tool. It unlocks our new and most powerful EMSO tools.

 

 

1. RFeye Site Signal Discovery

This feature solves critical, longstanding bottlenecks in RF spectrum monitoring and SIGINT:

Legacy spectrum tools rely on rigid, predefined signal libraries or basic power-mask triggers. If an adversary modifies a drone datalink, uses an uncatalogued SDR waveform, or transmits a short LPI burst, traditional systems fail completely. Operators are forced to record terabytes of raw I/Q data and spend hours using post-processing tools to write customised detector scripts — by which time the tactical window has closed.

  • The New Way: Library-free signal discovery and geolocation directly at the tactical edge. The system processes RF energy locally on the RFeye Node and presents statistical pulse heatmaps. Operators don’t need prior knowledge of a signal’s parameters (bandwidth, centre frequency, pulse duration, or modulation).
  • Interactive Visual Filtering: Operators can 'slice and dice' received RF energy by applying 'Inclusion' or 'Exclusion' filters directly on the heatmap. This effortlessly strips away 99.9% of undesired signals (like Wi-Fi) and isolates your target signals.
  • Automatic Geolocation: The moment a pulse geometry is isolated on screen, the system automatically triggers 2D or 3D TDoA geolocation across the sensor network within seconds.

Benefits

  • Library-free signal discovery means operators don’t need prior knowledge of a signal’s parameters.
  • Faster, more reliable detection – you can capture 50+ signals of interest per second in real time (no need to record long-duration I/Q data or wait for post-processing).
  • Use inclusion and exclusion filters to isolate and focus on signals of interest.
  • Automatic geolocation – the moment a capture is completed, 2D or 3D TDoA geolocation occurs instantaneously across the sensor network.

2. Wideband Geolocation Scan

Transforming a single wideband capture into 50+ real-time 2D/3D TDoA geolocations per second is revolutionary because it collapses targeting timelines to support unprecedented spectrum superiority in dense, fast-hopping threat environments.

“We’re getting an order of magnitude more real-time signal geolocations per second from the same systems. Knowing the location of every single signal is a paradigm shift. It provides an invaluable source of real-time location intelligence to direct further missions.”

Battle-proven military EW operator (beta tester)

Operators would previously set up each TDoA geolocation task individually for multiple signal channels, with each task consuming its own system resources. We have scaled this capability to support more simultaneous signal geolocations at greater speed.

  • The New Way: Users define groups of signal channels upfront. The system then automatically takes a single wideband capture across the nodes (using IBW stripes where needed) and runs geolocation across all channels simultaneously.
  • Intelligent Detector Gating: Processing power is optimised and the system intelligently focuses its processing on channels where signals are actually present, ignoring empty spectrum. This ties directly into the existing signal detection engine for a seamless workflow.

Benefits

  • Instant capture and geolocation of signals of interest
  • Significant reduction in targeting latency
  • Simultaneous multi-target tracking from a single capture
  • Real-time clarity about the unknown unknowns you care about
  • A better tactical spectrum operating picture and RF intelligence

3. RFeye Core v2.25.5 

Alongside its new capabilities, RFeye Core v2.25.5  strengthens security, performance and operational reliability.

  • Updated application platform: Migration to .NET 10 improves runtime performance and memory management. Charting has also been upgraded.

  • Security hardening: Vulnerabilities identified through application security testing have been addressed.

  • Performance and stability: CPU and memory usage during long-running sessions have been improved, with memory released more effectively when solutions are stopped.

  • Automatic bearing correction: Operators can select True North, Magnetic North or Automatic (GPS) as the antenna pointing reference. When Magnetic North is selected, the WMM2025 geomagnetic model calculates declination correction based on the node’s position.

  • Upgrade recovery: Saving a solution also creates a copy in the previous format, providing a recovery option during upgrades.

Other key features of the software update

Example signals that can be detected

  • Baofeng push-to-talk (PTT) radio

  • DJI Mavic drone — 2.4 GHz

  • LoRa — 453 MHz

  • Starlink uplink — 14 GHz

  • X-band radar — played back at 1 GHz
  • Speed vs Accuracy Optimisation: A new Optimisation Control allows operators to choose between Speed and Accuracy modes for TDoA geolocation. In Accuracy mode, when more RFeye Nodes detect the target than the minimum required, the system automatically evaluates additional node combinations to find the optimal solution. This gives operators direct control over the speed–precision trade-off depending on the tactical situation.
  • Extended Operational Baseline: The maximum node baseline has been increased to 10,000 km (now displayed in km for clarity), enabling geolocation across national-scale and theatre-wide sensor networks — not just local deployments.
  • FIPS Compliance: FIPS-compliant environments are supported, ensuring uninterrupted operation for government and defence customers with strict cryptographic compliance requirements.

Use cases

Military EW / SIGINT

Pain point:

Tactical environments are crowded. Adversaries use LPI radars and frequency-hopping radios. Standard systems miss them or take too long to scan vast bands channel-by-channel.

Solution:

Signal Discovery spots anomalies, while Wideband Geolocation Scan allows operators to monitor known emitters and search busy bands for new activity simultaneously, giving commanders broad situational awareness without sacrificing geolocation accuracy. The new TDoA Optimisation Control lets operators in fast-moving tactical situations prioritise speed, while intelligence analysts in deliberate operations can prioritise accuracy — all from the same system. With node baselines now supported up to 10,000 km, the same capability scales from a forward operating base to a theatre-wide SIGINT architecture.

Pain point:

In contested environments, Allied forces need to find and locate hostile LPI radars and tactical mobile radios by monitoring multiple communications channels simultaneously.

Solution:

Using the Wideband Geolocation Scan, the operator defines their channel groups and the RFeye system automatically takes wideband captures and correlates across all targets at once. Using detector gating, it skips empty spectrum, instantly delivering 3D (latitude, longitude, altitude) locations for each signal. By optimising resources, it geolocates many tens of different signals per second, tracking locations or distinguishing between multiple similar signals.

Border Security Monitoring and C-UAS

Pain point:

Drones operate in 2.4 GHz or 5 GHz bands saturated with civilian Wi-Fi. Power triggers cause constant false alarms, and standard libraries miss modified drones.

Solution:

Operators use Signal Discovery visual filters on the heatmap to exclude Wi-Fi and isolate the drone’s pulse pattern, quickly geolocating the drone and its pilot. Wideband Geolocation Scan then provides rapid geolocations of similar targets in the same geographic region, distinguishing between multiple targets using the same radio signals.

Time-sensitive location / targeting operators in complex environments

Pain point:

Locating a signal can take too long, and with multiple simultaneous signals, conventional processing within other detection systems can fail.

Solution:

Using Geolocation Scan, we can geolocate significantly more signals (over 50) per second in 2D or 3D space. When signals appear in regions of interest, whether a single signal or larger numbers of similar signals, you want to know about them fast. Geolocation Scan provides this.

An RFeye spokesperson said, “This EMSO capability has been requested by military and commercial customers and has been delivered as part of our continued investment roadmap. The software has been battle-tested and is already in service in fiercely contested environments. It is now being rolled out to all RFeye Software Support and Upgrade Service 2 customers worldwide. It reinforces the importance of detection based on physical RF characteristics, rather than relying on signal libraries. It leverages powerful detection at the edge on 100 MHz IBW RFeye Nodes – processing massive amounts of spectrum from a single capture efficiently. It’s an important response for military and commercial operators managing modern, challenging and evolving signal threats. It’s also an enterprise-grade, defence-ready software solution – not a lab tool.”
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