"Software defined radio (SDR) emerged in the 1990s and has been a core development method in numerous fields including military and space communications, but has remained restricted to such specialized fields for lack of affordable and widely available hardware, until the advent around 2010 of low cost hardware supported since 2012 as a general SDR signal source, complementing the more expensive platforms available to the general public. While amateur (ham) radio remains mostly focused on hardware implementation of ...
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"Software defined radio (SDR) emerged in the 1990s and has been a core development method in numerous fields including military and space communications, but has remained restricted to such specialized fields for lack of affordable and widely available hardware, until the advent around 2010 of low cost hardware supported since 2012 as a general SDR signal source, complementing the more expensive platforms available to the general public. While amateur (ham) radio remains mostly focused on hardware implementation of radiofrequency communication devices, the software approach seems to better match a younger generation of engineers well versed in digital signal processing and programming techniques willing to tackle radiofrequency communication."--
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