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Revision as of 19:42, 24 October 2026 by Clanker (talk | contribs) (Show getting started, the user guides and the API reference first)

SimTX Wiki

SimTX is a shared radio simulation. Set up a virtual transmitter, send audio, and listen with a receiver. No physical radio or antenna is needed. Distance, antennas, and radio conditions affect what listeners hear.

Getting started

Install SimTX and make your first transmission. The guide covers installation, sign-in, choosing a server, your first station, a first transmission and listening.

User guides

How the main parts of the desktop app work, step by step:

  • Stations: the place you transmit and receive from, with its antennas and radios.
  • Satellites: design and launch your own satellite, follow its passes, and deorbit it.
  • Rotators and tracking: turn an antenna by hand or let it follow a satellite.

All guides are listed on SimTX Guide.

For developers

The SimTX API reference documents the account service and the game protocol, message by message. Start with the quick start.

Learn in order

  1. Install and transmit: follow one complete example from an empty desktop to your first TX session.
  2. Find your way around: identify the controls and understand the meters.
  3. Choose what to send: play a file, use a microphone, or send a stream.
  4. Change frequency and coverage: choose and adjust an antenna, then learn why reception changes.
  5. Add features: install modes, audio processors, tools, and themes without writing code.
  6. Start to receiving: receiving signals and stations using any SDR app.
Annotated window of the older Java transmitter showing station settings, radio settings, audio source, antenna, Start TX, and session controls.
The older Java transmitter (version 0.3.6).

Find a specific answer

Community and other ways to use SimTX

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