OERadio MCP Server

🎙️ Part of the oeradio.at open source ham radio tool collection. Browse all tools → oeradio.at/werkzeuge

Public MCP (Model Context Protocol) server providing amateur radio tools and calculations for IARU Region 1 operators.

Endpoint: https://oeradio-mcp.oeradio.at/mcp Author: OE8YML License: MIT

What is MCP?

Model Context Protocol (MCP) is an open standard that allows AI assistants to use external tools. Originally developed by Anthropic, MCP is now supported by Claude, ChatGPT, and Gemini. With this server, you can ask your AI assistant questions like "What are the band limits for 20m?" or "How long should my dipol be for 14.2 MHz?" and get instant calculations.

Related MCP server: hamqth-mcp

Supported AI Assistants

Available Tools

Radio Calculation Tools

Austrian Callsign Tools

The callsign tools use the official Austrian callsign list from fb.gv.at as the primary data source. External lookups (QRZ.com, HamQTH) include warnings when a callsign is found externally but not in the official list.

Directory Tools

Available Resources

Supported Data

Bands (IARU Region 1)

2200m, 630m, 160m, 80m, 60m, 40m, 30m, 20m, 17m, 15m, 12m, 10m, 6m, 2m, 70cm, 23cm, 13cm

Coaxial Cables

RG58, RG213, H2000Flex, Aircell7, Ecoflex10, Ecoflex15, LMR400, LMR600

Antenna Types

Dipol, Groundplane, Vertical, Yagi (3/5/7 elements), Quad (2 elements), J-Pole, Slim Jim, Collinear (X50/X200/X510)

Austrian Callsign Data

• Source: Official callsign list from fb.gv.at (Fernmeldebüro)

• Updates: Automatic monthly updates via GitHub Actions

• Districts: OE1 (Wien), OE2 (Salzburg), OE3 (NÖ), OE4 (Burgenland), OE5 (OÖ), OE6 (Steiermark), OE7 (Tirol), OE8 (Kärnten), OE9 (Vorarlberg)

• License Classes: Class 1 (CEPT full), Class 3 (CEPT restricted), Class 4 (Beginner)

The callsign database is updated automatically on the 2nd of each month and contains ~7,500 entries.

OERadio.at Web Tools

All tools are available at https://oeradio.at/werkzeuge/

Calculators (Blick-Series):

Learning Tools:

Utilities:

Client Configuration

Claude Desktop

Add to your configuration file:

• Windows: %APPDATA%\Claude\claude_desktop_config.json

• Mac: ~/Library/Application Support/Claude/claude_desktop_config.json

• Linux: ~/.config/claude/claude_desktop_config.json

{
  "mcpServers": {
    "oeradio": {
      "type": "streamable-http",
      "url": "https://oeradio-mcp.oeradio.at/mcp"
    }
  }
}

Claude Code (CLI)

Add to ~/.config/claude/settings.json:

{
  "mcpServers": {
    "oeradio": {
      "type": "streamable-http",
      "url": "https://oeradio-mcp.oeradio.at/mcp"
    }
  }
}

ChatGPT (Developer Mode)

Requires ChatGPT Pro, Plus, Team, or Enterprise account.

1. Go to Settings > Connectors > Advanced

2. Enable Developer Mode

3. Click Create and enter:

   • Name: OERadio

   • URL: https://oeradio-mcp.oeradio.at/mcp

4. In chat: Click + > More > Developer mode and select OERadio

Gemini CLI

Add the server using the command:

gemini mcp add --transport http oeradio https://oeradio-mcp.oeradio.at/mcp

Or add to your settings.json:

{
  "mcpServers": {
    "oeradio": {
      "url": "https://oeradio-mcp.oeradio.at/mcp"
    }
  }
}

Clients with stdio only

{
  "mcpServers": {
    "oeradio": {
      "command": "npx",
      "args": ["mcp-remote", "https://oeradio-mcp.oeradio.at/mcp"]
    }
  }
}

API Endpoints

Self-Hosting

Requirements

• Node.js 20+

• Docker (optional)

Docker

docker build -t oeradio-mcp .
docker run -d -p 3000:3000 --name oeradio-mcp oeradio-mcp

Docker Compose

docker compose up -d

Manual

npm install
npm run build
npm start

Development

npm install
npm run dev

Registry

This server is published to the MCP Registry:

• Name: io.github.achildrenmile/oeradio-mcp

• Version: 1.0.0

Links

• Website: https://oeradio.at

• MCP Endpoint: https://oeradio-mcp.oeradio.at/mcp

• Health Check: https://oeradio-mcp.oeradio.at/health

• GitHub: https://github.com/achildrenmile/oeradio-mcp

License

MIT

73 de OE8YML