Wired: GNU Radio Opens an Unseen World

“Matt Ettus has the sly smile of someone who sees the invisible.
His hands fly over the boards of his Universal Software Radio
Peripheral, or USRP, snapping them together with an antenna like
Lego bricks. Then he plugs in the naked boards to a USB 2 cable
snaking to his Linux laptop.

“After few minutes of normal Linux messing around (‘Takes
forever to boot…. Haven’t got the sound driver working yet….’)
he turns the laptop around to reveal a set of vibrating lines in
humps and dips across the screen, like a wildly shaking wireframe
mountain range. ‘Here,’ he explains, ‘I’m grabbing FM…'”

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