Language Selection

English French German Italian Portuguese Spanish

GNU Radio Opens an Unseen World

Filed under
Software

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."

"All of it?" I ask.

"All of it," he says. I'm suddenly glad the soundcard isn't working.

Full Story.

More in Tux Machines

High-end 'upstream' Linux laptop plans to ship in April

They said in working up hardware, they carefully designed the laptop "chip by chip" to work with open source software. The 4.4-pound laptop runs Linux. This is a GNU-based distribution, more specifically, the Trisquel GNU/Linux, "the strictest of distributions and strips all binary blobs from the Linux kernel." At the same time, they said laptop owners, if they want, can easily install anything less strict, such as Debian and Ubuntu. The machine has a 15.6" display in either 1920x1080 or 3840x2160 with a 60Hz refresh rate, 720p camera and HD Audio. It has a CD/DVD ROM drive. They used Intel Iris Pro Graphics 5200. It has a 48 Wh lithium polymer battery with about eight hours of usage. Read more

Android essentials: 13 apps I can't live without

We spend a lot of time talking about Lollipop and OS-level issues with Android -- but you know what's just as important as the operating system on your phone or tablet? The apps that surround it. The right apps can make your device easier and more enjoyable to use. They can give it powers you didn't know were possible. They can make it feel like your own custom-tailored gadget -- whether you've been using it for two minutes or for two years. Read more

GHOST, a critical Linux security hole, is revealed

Researchers at cloud security company Qualys have discovered a major security hole, GHOST (CVE-2015-0235), in the Linux GNU C Library (glbibc). This vulnerability enables hackers to remotely take control of systems without even knowing any system IDs or passwords. Qualys alerted the major Linux distributors about the security hole quickly and most have now released patches for it. Josh Bressers, manager of the Red Hat product security team said in an interview that, "Red Hat got word of this about a week ago. Updates to fix GHOST on Red Hat Enterprise Linux (RHEL) 5, 6, and 7 are now available via the Red Hat Network." This hole exists in any Linux system that was built with glibc-2.2, which was released on November 10, 2000. Qualys found that the bug had actually been patched with a minor bug fix released on May 21, 2013 between the releases of glibc-2.17 and glibc-2.18. Read more

4MLinux Allinone Edition 11.0 Is a Complete OS

4MLinux Allinone Edition, a Linux distro that encompasses multiple tools for Maintenance (system rescue Live CD), Multimedia (e.g. playing video DVDs), Miniserver (using the inetd daemon), and Mystery (Linux games), is finally out of the Beta stages and has reached version 11.0. Read more