1. Install a signal server and obtain its IP address or host name.

RTL-SDR, Airspy HF+ and SDRplay radios are supported.

The server application should be listening for TCP/IP connections on port 1234 which is the default, or on some other known port.

2. Select the Settings tab.

In the Network Settings section tap Host, enter the IP address or host name of the signal server, and tap Save.

If the server is listening on a port other than 1234, then in the Network Settings section tap Port, enter the port number on which the server is listening, and tap Save.

In the Server Settings section tap Server Type, select RTL-SDR, Airspy HF+ or SDRplay, and tap Save.

In the Server Settings section tap Sampling, select a Sampling Rate, and tap Save.   

3.  Select the Stations tab.  

Select a station.  The frequency and modulation type of that station will be shown at the top of the screen.

Select On.  Audio for the selected station will play.   The Volume slider in the app can be adjusted if necessary.