Two years ago, I wrote about using an inexpensive RTL2832-based DVB/DAB USB dongle as a spectrum analyzer and receiver. (See “Software-Defined Radios Help Explore RF Spectrum,” July 11, 2012). It is ...

If I offered you the secret to the $11 spectrum analyzer & software-defined radio, what would you promise me? Your firstborn? Treasures of gold and diamonds. Well, I'll consider the latter. Here it is ...

When the first USB DTV receivers came out with tuners covering 54–806 MHz, I wondered if any of them could be modified into an inexpensive spectrum analyzer. Thanks to RealTek and some Linux kernel ...

A free software upgrade from Signal Hound offers a single graphical user interface to control the SA series of USB-powered spectrum analyzers and the TG series of tracking generators, providing ...

Every machine has its own way of communicating with its operator. Some send status emails, some illuminate, but most of them vibrate and make noise. If it hums happily, that’s usually a good sign, but ...

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 ...