QuestaRadio is a simple, intuitive interface, small and fast PC-based DSP application for Software Defined Radio. It’s written in C++ with Qt cross-platform framework. Typical applications are Shortwave listening, Ham Radio, Radio Astronomy and Spectrum analysis.

Download v1.2 alpha

  • QuestaSDR version 1.x

System Requirements

  • The software was developed and tested on Windows 10 64 bit. It may also work on Windows XP, Vista and Windows 8, 10 32-bit and 64-bit, but this cannot be guaranteed.
  • Sound card with stereo line input

Radio Hardware

  • Simple qsd receivers with a fixed frequency oscillator ( QuRX Xtall )
  • QuRX Multiband
  • Winrad ExtIO plugin with sound card