Since 15-Feb-2026 until 11-may-2026 5:05pm
Dispatch460 is a real-time radio monitoring system that captures, transcribes and analyzes emergency dispatch communications from Milford, CT Fire and EMS on frequency 154.340 MHz. Every transmission is automatically recorded, converted to text using AI, geocoded to a map location, and made available through this web interface within seconds of broadcast.
The system is completely automated â a small computer listens to the radio 24 hours a day, 7 days a week, and pushes every transmission to the cloud in real time. Community members can follow live emergency activity, review historical dispatches, and explore patterns in emergency response across Milford.
Dispatch460 began as a simple experiment â a Raspberry Pi-style mini-PC connected to an inexpensive software defined radio (SDR) dongle, listening to the Milford Fire/EMS frequency. Early versions simply recorded audio clips and stored them locally.
Over time the system grew more sophisticated. OpenAI's Whisper speech recognition model was integrated to automatically transcribe each transmission. A custom fine-tuned version of Whisper was trained specifically on Milford radio traffic to improve accuracy on local street names and dispatch terminology. The system then migrated from local Flask web servers to a fully hosted Django application on AWS, making it accessible from anywhere in the world.
Dispatch460 is designed to get better every day through an active learning pipeline:
Every transmission is captured, transcribed and geocoded automatically. A street name correction dictionary fixes known Whisper transcription errors in real time.
An AI agent powered by Claude analyzes the day's dispatches, flags geocoding failures, transcription errors and classification issues, and suggests corrections.
A natural language data quality report is automatically generated, scoring the day's data and listing specific issues to investigate.
Approved corrections are exported as training pairs and used to fine-tune the Whisper transcription model, making it progressively more accurate on Milford-specific terminology.
Dispatch460 is an independent community project and is not affiliated with, endorsed by, or operated by the City of Milford, Milford Fire Department, or Milford EMS. All radio transmissions monitored are publicly broadcast on licensed frequencies. Transcriptions are generated by AI and may contain errors. This system is intended for informational purposes only and should never be used as a substitute for official emergency communications.