7957176e59
Backend: - Add device_key.py for stable device identification (identity > public MAC > fingerprint) - Add distance.py with DistanceEstimator class (path-loss formula, EMA smoothing, confidence scoring) - Add ring_buffer.py for time-windowed RSSI observation storage - Extend BTDeviceAggregate with proximity_band, estimated_distance_m, distance_confidence, rssi_ema - Add new API endpoints: /proximity/snapshot, /heatmap/data, /devices/<key>/timeseries - Update TSCM integration to include new proximity fields Frontend: - Add proximity-radar.js: SVG radar with concentric rings, device dots positioned by distance - Add timeline-heatmap.js: RSSI history grid with time buckets and color-coded signal strength - Update bluetooth.js to initialize and feed data to new components - Replace zone counters with radar visualization and zone summary - Add proximity-viz.css for component styling Tests: - Add test_bluetooth_proximity.py with unit tests for device key stability, EMA smoothing, distance estimation, band classification, and ring buffer functionality Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
INTERCEPT
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Signal Intelligence Platform
A web-based interface for software-defined radio tools.
Features
- Pager Decoding - POCSAG/FLEX via rtl_fm + multimon-ng
- 433MHz Sensors - Weather stations, TPMS, IoT devices via rtl_433
- Aircraft Tracking - ADS-B via dump1090 with real-time map and radar
- ACARS Messaging - Aircraft datalink messages via acarsdec
- Listening Post - Frequency scanner with audio monitoring
- Satellite Tracking - Pass prediction using TLE data
- WiFi Scanning - Monitor mode reconnaissance via aircrack-ng
- Bluetooth Scanning - Device discovery and tracker detection
Installation / Debian / Ubuntu / MacOS
**1. Clone and run:**
```bash
git clone https://github.com/smittix/intercept.git
cd intercept
./setup.sh
sudo -E venv/bin/python intercept.py
Docker (Alternative)
git clone https://github.com/smittix/intercept.git
cd intercept
docker compose up -d
Note: Docker requires privileged mode for USB SDR access. See
docker-compose.ymlfor configuration options.
Open the Interface
After starting, open http://localhost:5050 in your browser. The username and password is admin:admin
The credentials can be change in the ADMIN_USERNAME & ADMIN_PASSWORD variables in config.py
Hardware Requirements
| Hardware | Purpose | Price |
|---|---|---|
| RTL-SDR | Required for all SDR features | ~$25-35 |
| WiFi adapter | Must support promiscuous (monitor) mode | ~$20-40 |
| Bluetooth adapter | Device scanning (usually built-in) | - |
| GPS | Any Linux supported GPS Unit | ~10 |
Most features work with a basic RTL-SDR dongle (RTL2832U + R820T2).
| ❗ Not using an RTL-SDR Device? |
|---|
| Intercept supports any device that SoapySDR supports. You must however have the correct module for your device installed! For example if you have an SDRPlay device you'd need to install soapysdr-module-sdrplay. |
| ❗ GPS Usage |
|---|
| gpsd is needed for real time location. Intercept automatically checks to see if you're running gpsd in the background when any maps are rendered. |
Discord Server
Documentation
- Usage Guide - Detailed instructions for each mode
- Hardware Guide - SDR hardware and advanced setup
- Troubleshooting - Common issues and solutions
- Security - Network security and best practices
Disclaimer
This project was developed using AI as a coding partner, combining human direction with AI-assisted implementation. The goal: make Software Defined Radio more accessible by providing a clean, unified interface for common SDR tools.
This software is for educational and authorized testing purposes only.
- Only use with proper authorization
- Intercepting communications without consent may be illegal
- You are responsible for compliance with applicable laws
License
MIT License - see LICENSE
Author
Created by smittix - GitHub
Acknowledgments
rtl-sdr | multimon-ng | rtl_433 | dump1090 | acarsdec | aircrack-ng | Leaflet.js | Celestrak