CubicSDR: CubicSDR (Software-Defined Radio Application) CubicSDR: CubicSDR: CubicSDR is the software portion of Software Defined Radio. By using CubicSDR: hardware that converts RF spectrum into a digital stream we are able CubicSDR: to build complex radios to do many types of functions in software CubicSDR: instead of traditional hardwre. CubicSDR: CubicSDR: Paired with a supported hardware receiver, you can use CubicSDR to CubicSDR: explore the RF world around you. Discover Satellite transmissions, CubicSDR: Amateur Radio, Rail, Areonautical, Shortwave, or any number of CubicSDR: possible signals floating through the air.