Passive drone detection system
RF airspace awareness without transmitting.
SIGNAL³ monitors supported drone-related RF activity through three independent sensing paths, processed locally on a single field system. It is a detection and situational-awareness platform, not a jammer or takeover system.
Complementary sensing
Passive RF and radar see the problem differently.
Passive RF, SIGNAL³
- Listens rather than transmitting
- Can extract identity and telemetry from supported protocols
- Compact RF sensing architecture
- No intentional RF emission from the detector
- Suitable as a complementary airspace-awareness layer
Radar
- Actively detects physical objects through reflected RF energy
- Does not depend on a drone transmitting
- Can detect RF-silent targets
- May require larger infrastructure depending on system design
These technologies are complementary. SIGNAL³ is designed as the passive RF intelligence layer within an airspace-awareness architecture.
Passive RF detection has different strengths.
Many drones emit RF energy during operation through control links, video transmission, Remote ID or manufacturer-specific protocols. SIGNAL³ is designed to monitor supported RF activity without transmitting into the airspace itself.
A completely RF-silent autonomous aircraft may not be detectable by passive RF alone. For high-security applications, RF detection can form one layer within a wider sensor architecture incorporating technologies such as radar or EO/IR.
Sensing architecture
Three independent ways to see the RF environment.
DJI DroneID
Dedicated passive SDR processing for supported DJI DroneID transmissions, designed to extract aircraft identity and telemetry when available.
DJI sensing hardware and processing path integrated. Live-aircraft telemetry validation underway.
Broadcast Remote ID
Dedicated dual-band Wi-Fi and Bluetooth monitoring for Broadcast Remote ID transmissions from compliant aircraft.
Remote ID receiver integrated across 2.4 GHz, 5 GHz and Bluetooth monitoring paths. Live-aircraft validation underway.
FPV / RF
Continuous passive monitoring across common 5.8 GHz FPV frequencies to identify RF activity associated with video-control environments.
56-channel 5.8 GHz RF scanning, adaptive noise-floor measurement and real-time signal detection operating on current hardware.
Simulated operator view
A local view of supported RF observations.
The display below uses simulated events to illustrate interface behavior. Identity, telemetry and location information depends on what a supported protocol transmits and what SIGNAL³ successfully decodes.
Detections
Airspace clear. Scanning.
Illustrative loop. Simulated tracks shown for demonstration.
Clear boundaries
What SIGNAL³ is. What it isn't.
What it is
- + Passive RF sensing
- + Local processing
- + Multi-sensor architecture
- + Drone and RF situational awareness
- + Designed for field deployment
What it isn't
- − A jammer
- − A takeover system
- − A kinetic countermeasure
- − Radar
- − A guarantee of detecting RF-silent aircraft
Detection first. Decisions stay with the operator.
See SIGNAL³ in operation.
Request a technical demonstration of the sensing platform, operator interface and current detection capabilities.
Request a demoDiscuss field evaluation