Universal HamRadio Remote (UHRR) – Control Your Radio from Anywhere

Remote ham radio operation just got easier with Universal HamRadio Remote HTML5 (UHRR) by F4HTB. This open-source project offers a sleek HTML5 web interface powered by a Python backend, allowing you to operate your transceiver (TRX) from anywhere—using only your computer’s web browser, microphone, and speaker.

What Is UHRR?

UHRR is a lightweight remote ham radio utility that brings both RX and TX capabilities to your browser. Designed for Raspberry Pi OS Lite (based on Debian Buster), it connects to your radio via Hamlib, and uses audio input/output from your computer for voice (phone) or CW operation.

While it’s optimized for remote use, local operation is also possible—though not officially supported.

🧰 Key Features

• HTML5 Web Interface – No extra software needed, just your browser.
• RX and TX Support – Transmit and receive using your PC microphone and speaker.
• Cat Interface Support – Works with radios supported by Hamlib.
• Audio Level Adaptation – Interfaces with external audio circuits to match levels properly.
• HTTPS Access – Secure remote access via https://UHRR.local:8888.

🖥️ Requirements

To get started, you’ll need:

• A Raspberry Pi running Raspberry Pi OS Lite (32-bit).
• A radio compatible with Hamlib.
• A CAT interface.
• Audio interface circuitry to adapt levels between the radio and sound card.

📦 Docker Support

For easier deployment, UHRR now includes a Dockerfile and docker-compose.yml, allowing you to set up the entire stack in a containerized environment. This makes it even more convenient for advanced users.

⚠️ Important Notes

• Make sure remote operation is legal in your country before using UHRR.
• If the configuration is missing or invalid, the interface will auto-redirect to a configuration screen at https://UHRR.local:8888/CONFIG.

🧪 Still Actively Maintained

While there’s no official release yet, the project is stable, with contributions from hams worldwide. A big shout-out to Mike W9MDB and the Hamlib team, along with all other contributors who make this project possible.

📚 Learn More

• Project Page: github.com/F4HTB/Universal_HamRadio_Remote_HTML5
• Wiki: Installation & Setup Guide
• News & Updates: UHRR History

🗣️ Final Thoughts

If you’ve ever dreamed of working DX from a web browser while sipping coffee on your balcony—UHRR makes it possible. Whether you’re operating an IC-7300, FT-710, or any Hamlib-compatible rig, this project offers a powerful, minimalist remote setup that just works.

Feel free to contribute, report issues, or share your success stories with F4HTB at olivier@f4htb.fr.