## 📻 Communications & SIGINT

[← Back to Index](../README.md)

###📡 Amateur & Utility Radio Monitoring

- [WebSDR.org](https://websdr.org) - Global network of publicly accessible SDR receivers
- [KiwiSDR Network](http://rx.linkfanel.net) - Interactive map of KiwiSDR receivers for HF/VHF/UHF monitoring

###📡 Radiostations resources
- [Radio Garden](https://radio.garden) - Interactive global map of radio stations

### Utility & Number Station Resources

- [Numbers Station Research & Archive](https://priyom.org) - Database and live schedule of known number stations
- [HF Underground](https://www.hfunderground.com) - Logs of pirate, utility, and number station receptions
- [Enigma 2000](http://signalshed.com) - Community focused on identifying and cataloging mysterious radio signals

###🚔 Public Safety & Aviation

- [Broadcastify](https://www.broadcastify.com/listen) - Live police, fire, EMS, and aviation feeds worldwide
- [LiveATC.net](http://liveatc.net) - Global live streams of air traffic control communications
- [MarineTraffic Radio (AIS Feeds)](https://www.marinetraffic.com) - Marine AIS transponder data and related VHF radio info

### 🛰️ Satellite & Space Communications

- [N2YO.com](https://www.n2yo.com) - Live satellite tracking and radio frequency info
- [SatNOGS Network](https://network.satnogs.org) - Global open network of satellite ground stations
- [Heavens-Above](https://www.heavens-above.com) - Satellite pass predictions and amateur radio satellite data

### 📰 Databases, Logs & Communities
- [Frequency Database](https://www.radioreference.com) - Comprehensive global frequency listings and live feeds
- [High Frequency Coordination Conference](https://new.hfcc.org/index.php) - Official frequency schedules of shortwave broadcasters
- [EiBi Shortwave Database](http://eibispace.de) - Regularly updated international shortwave schedules

### Communities & Research Hubs

- [Reddit Shortwave](https://www.reddit.com/r/shortwave) - Shortwave Reddit Thread
- [HF Underground Forums](https://www.hfunderground.com/board) - Underground radio forum
- [Worldwide Radio Forum (WRTH)](https://wrth.com) - Radio Forum