Passive RF

Passive RF Sensor

Passive Rf Locator For Drone Detection & Geolocation

HADES Defense Systems' Passive RF Sensor is designed to reveal hidden UAV activity. The system transmits nothing itself, but continuously monitors the entire RF spectrum and recognises control signals, telemetry and video links from drones and their operators. As a result, the sensor provides instant situational awareness without the adversary noticing detection.

The sensor can recognise common signature patterns and link them to known UAV models. This strengthens identification: when radar sees a target and the RF sensor picks up an active signal, instant confirmation occurs. When radar detects but RF is silent, it indicates autonomous or non-jamable threats, crucial information for risk analysis.

Wideband Awareness in One Device

Detects all major RF and drone emitters across 0-6 GHz with instant precision.

Passive RF
Reach
0 GHz
Sensitivity
- 0 dBm
Dynamic Range
> 0 db

With multiple RF units, the system can also determine the direction and location of the drone operator. This makes it possible to identify launch points, hiding positions or command posts, even in urban areas.

All RF data is automatically merged into our sensor fusion platform, where it is combined with radar detection, optical tracking and AI classification. This creates a single unified threat picture that directly supports decision-making in Soft-Kill and Hard-Kill means.

The Passive RF Sensor is compact, lightweight and fully modular. The system can be easily integrated on masts, vehicles, command posts or temporary tactical set-ups. Thanks to its fully passive operation, the sensor remains invisible, energy-efficient and deployable in any environment.

As part of ML-HADS, the Passive RF Sensor is a silent but essential link: rapidly deployable, unobtrusive and designed to recognise even the subtlest UAV activity early on

Specifications Passive RF Sensor
Frequency range
0 - 6 GHz
Mode
Passive monitoring (RX only)
Sensitivity
typ. -100 dBm (antenna-dependent)
Dynamic range
> 80 dB
Bearing (direction)
Azimuth direction + confidence metric
Geolocation (decoded signals)
Provides coordinates and metadata
Decoded data
ID, type, channel, frequency, telemetry fields
Nutrition
12 V DC / 220 V AC; battery/vehicle option
Communications
LTE/5G uplink, Ethernet, optional Wi-Fi
Local storage
microSD (NVMe SSD optional)
Interfaces
REST API, MQTT, web interface, Android push notifications
Operating temperature
-20 °C ... +55 °C
Options
Camera module, acoustic sensor, external antenna kit
Backend
Centralised map, logs, role-based access, third-party API

The sensor and specifications shown serve as examples from our standard portfolio. Each solution is fully custom configured by HADES based on your project and mission requirements.