Open Source SIGINT Platform

iNTERCEPT

A unified web interface for software-defined radio tools. Monitor pagers, track aircraft, scan WiFi networks, and more โ€” all from your browser.

20+ Modes
200+ Protocols
$25 Min Hardware
iNTERCEPT Dashboard

Capabilities

Everything you need for signal intelligence in one interface

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Pager Decoding

Decode POCSAG and FLEX pager messages using rtl_fm and multimon-ng. Monitor emergency services and legacy paging systems.

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Aircraft Tracking

Real-time ADS-B tracking with interactive maps, aircraft photos, emergency squawk detection, and range visualization.

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433MHz Sensors

Decode 200+ protocols including weather stations, TPMS, smart home devices, and IoT sensors via rtl_433.

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Sub-GHz Analyzer

HackRF-based signal capture and protocol decoding for 300-928 MHz ISM bands with spectrum analysis and replay.

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Listening Post

Frequency scanner with real-time audio monitoring, fine-tuning controls, and customizable frequency presets.

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Satellite Tracking

Track satellites with TLE data, sky plots, ground track visualization, and pass predictions for your location.

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WiFi Scanning

Monitor mode reconnaissance via aircrack-ng. Network discovery, client tracking, and handshake capture.

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Bluetooth Scanning

Device discovery with tracker detection for AirTags, Tile, Samsung SmartTag, and other Bluetooth devices.

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BT Locate

SAR Bluetooth device location with GPS-tagged signal trail mapping, IRK-based RPA resolution, and proximity audio alerts.

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GPS Tracking

Real-time GPS position tracking with live map, speed, heading, altitude, satellite info, and track recording.

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TSCM

Counter-surveillance with baseline recording, threat detection, device correlation, and risk scoring.

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Meter Reading

Intercept smart utility meters via rtl_amr. Monitor electricity, gas, and water meter transmissions.

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Vessel Tracking

Real-time AIS ship tracking via AIS-catcher. Monitor maritime traffic with vessel details, course, speed, and destination.

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Spy Stations

Number stations and diplomatic HF network database. Frequencies, schedules, and background info from priyom.org.

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Remote Agents

Distributed signal intelligence with remote sensor nodes. Deploy agents across multiple locations and aggregate data to a central controller.

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Offline Mode

Run without internet using bundled assets. Choose from multiple map tile providers or use your own local tile server.

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Meshtastic

LoRa mesh network integration. Connect to Meshtastic devices for decentralized, long-range communication monitoring.

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Weather Satellites

NOAA APT and Meteor LRPT image decoding via SatDump with auto-scheduler, polar plot, and ground track map.

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ISS SSTV

Receive Slow Scan Television from the ISS. Real-time tracking globe, pass predictions, and image decoding.

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HF SSTV

Terrestrial SSTV on shortwave frequencies. Decode amateur radio image transmissions across HF, VHF, and UHF bands.

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ACARS

Aircraft datalink messages via acarsdec. Decode operational, weather, and position reports from commercial flights.

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APRS

Amateur packet radio position reports and telemetry via direwolf. Track amateur radio operators on an interactive map.

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WebSDR

Remote HF/shortwave listening via the KiwiSDR network. Access receivers worldwide with real-time audio streaming.

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Utility Meters

Smart meter monitoring via rtl_amr. Receive electric, gas, and water meter broadcasts in real time.

See It In Action

A clean, modern interface for complex RF operations

Quick Start

Get up and running in minutes

Supported Platforms: Officially tested on Debian and Ubuntu. Partial support for macOS. Other distributions have not been fully tested.

Standard Installation

git clone https://github.com/smittix/intercept.git
cd intercept
./setup.sh
sudo -E venv/bin/python intercept.py

Requires Python 3.9+ and RTL-SDR drivers

Docker

git clone https://github.com/smittix/intercept.git
cd intercept
docker compose up -d

Requires privileged mode for USB SDR access

After starting, open http://localhost:5050 in your browser.

Default credentials: admin / admin

Hardware

Minimal hardware, maximum capability

Required

RTL-SDR

Core SDR functionality for all radio features

~$25-35
Optional

WiFi Adapter

Monitor mode support for WiFi scanning

~$20-40
Optional

GPS Receiver

Real-time location for mapping features

~$10

iNTERCEPT also supports HackRF, LimeSDR, Airspy, and SDRplay via SoapySDR

Ready to start intercepting?

Join the community and start exploring the RF spectrum