South Bay Meetup
Details
Live stream: https://www.youtube.com/watch?v=u8CYptnVv3Y
IRC: #cyberspectrum on Freenode
Agenda:
• Martin Braun (https://twitter.com/braun_noise): "GNU Radio Community Update"
The latest news on all things GNU Radio.
• Kevin Reid (https://twitter.com/switchborg): "An Audible Waterfall Plot (http://kpreid.livejournal.com/)"
AM receivers are useful for detecting a variety of signals (and noise sources) even when they are not deliberately amplitude modulated. It is possible to implement a non-selective AM receiver, one which receives signals in a very large input bandwidth. This has been done in hardware; the classic crystal radio is an example, but more advanced designs are also made for aviation radio enthusiasts. A further refinement allows the signals to be spatialized, producing a stereo audio output where the sound is panned according to the relative RF frequency of the input, thus creating an “audible waterfall”.
http://photos3.meetupstatic.com/photos/event/1/4/3/3/600_449105171.jpeg
• Paul David (https://twitter.com/daulpavid): "Adding Dual 10 Gigabit Ethernet Capability to the USRP X300"
The USRP X300 currently supports a single 1 or 10 Gigabit Ethernet connection to the host computer. In this talk, I will discuss the various design challenges in adding support for two simultaneous 10 Gigabit links, from the perspective of the FPGA, the UHD software driver, and different Ethernet cards, as well as give a brief demonstration showing the real-time monitoring of 400 MHz of instantaneous bandwidth to view WiFi and LTE signals over-the-air.
Time permitting:
• Balint (https://twitter.com/spenchdotnet): "Couple of interesting experiments"
GNU Radio Spot Jammer
FMCW RADAR analysis
BIOS
Martin is a long-time contributor to the GNU Radio project and the GNURadio community manager. Most of the stuff he touches is SDR-related,and his day job is writing software for Ettus Research, where he's spent a lot of time on RFNoC among other things.
Paul David is currently an intern at Ettus Research and a graduate student from Virginia Tech. He primarily focuses on wireless communications and software-defined radio (SDR), as well as software development. He plans to restart his PhD research upon his return to school in the fall. He received his B.S. in Electrical Engineering from Clemson University in 2013 and his M.S. from Virginia Tech in 2015.