RTL-SDR, the USB TV tuner turned software-defined radio is an amazing device, capable of listening to nearly anything from 25MHz to 1750MHz, fits in your pocket, and costs about $20. Even more ...

Surely by now you’ve at least heard of RTL-SDR — a software project that let’s cheap TV tuner dongles work as a software-defined radios. A number of projects and tools have spun off the original ...

A radio receiver consisting of just a very good analog-to-digital converter connected directly to the antenna plus a powerful computer could make a great radio. However, the present state of the ...

In my last column I described measurements I made on some indoor TV antennas. The “Spectrum Spy” software and Airspy SDR I used for those measurements can also be used as part of a very portable, ...

No doubt most tech and electronic enthusiasts have encountered buzz around SDR, software-defined radio, and asked themselves “what’s the sudden big deal,” if the technology existed for decades? The re ...