Working digital modes

Web Radio Control uses Hamlib rigctld server to control radios. Since Hamlib radio control is used by many other amateur radio applications, such as WSJT-X (e.g. for FT8 and WSPR digital modes) and fldigi (for a number of other digital modes), Web Radio Control provides a way to connect directly to the underlying Hamlib rigctld server from your local client computer. This connection allows you to run these applications locally on your client computer and still control your radios remotely while running Web Radio Control.

The connection to Hamlib rigctld server is established by installing and using a helper application called wrc-proxy, which opens a TCP server on your local computer and connects to a URL address that points to the remote Web Radio Control server. You can create a new Hamlib proxy URL address for wrc-proxy to connect to in Web Radio Control settings.

Note that it is still necessary to use a web browser to handle audio input and output, simply by starting audio streaming normally in the browser, because the Hamlib protocol is only responsible for transferring the radio control commands. The audio needs to be routed from the web browser to the application by creating local loopback sound card, sometimes called a virtual audio cable.