25 Jun '13, 2pm

A $40 Software-Defined Radio

Cheap Software-Defined Radio: With some cheap hardware and free software, you can listen in on digital and analog signals across a wide range of radio spectrum. Photo: Nicholas Eveleigh The last time I ventured into the waters of software-defined radio (SDR) was seven years ago, when I reviewed Matt Ettus’s Universal Software Radio Peripheral. While it’s an excellent product, the basic motherboard at the time cost US $550; daughterboards for different frequency ranges cost $75 to $275 [see “Hardware for Your Software Radio ,” IEEE Spectrum , October 2006]. And I spent more than a few frustrating hours compiling the needed software on my MacBook Pro. This time I was able to get my feet wet for about $40—and the software took about 2 minutes to download, install, and run. This minor miracle was made possible by Finnish engineering student and Linux developer Antti Palosaari ...

Full article: http://spectrum.ieee.org/geek-life/hands-on/a-40-software...

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