Fldigi

Fldigi: Transform your computer into a radio station and live chat

If you ever had a dream of having your own radio station, Fldigi is one of the best free applications on the market right now. Fldigi is a handy software that uses your internal or external sound card to input/output different frequency signals.

The application also works very well with a standard HF SSB radio transceiver and supports the most popular modes such as FM, LSB, RTTY, MFSK16, LSB, Olivia, Hell and more. Fldigi lets you control your radio transmitter while reading all the incoming signals and tune the waves propagation.

Fldigi sports a sleuth of powerful options from managing and tuning your signal to encrypting and decrypting messages, and displaying various useful information such as signal strength or data logging. Upon installation, the software comes with a handy tutorial to guide you through most steps, making it very intuitive even for amateurs.

Fldigi is a powerful radio application that caters to all users but with a lot of potential if used at its maximum capabilities.