Tenth special from Washington, DC!

Live stream URL: Cyberspectrum #10 - Special from DC (https://www.youtube.com/watch?v=r64-EA0IneU)

IRC: #cyberspectrum on Freenode

Tonight we'll have (in no particular order):

• "Using SDR & GNU Radio in Radio Astronomy" by Richard Prestage, NRAO

• Tim O'Shea on some more cool GNU Radio hackery

http://oshearesearch.com/tag/lambda-blocks/

GNU Radio Lambda blocks are a simplification of pure-python blocks for GNU Radio which allow for writing a new block from within GRC with a simple python lambda expression. We'll demonstrate the great signal processing hackery that can achieved with the stream and message versions of this block!

http://photos1.meetupstatic.com/photos/event/7/2/1/a/600_441329210.jpeg

• "PSK Modems in GNU Radio" by Kiran Karra

https://kirankarra.wordpress.com/2015/08/26/qpsk-burst-receiver-synchronization/

PSK Modems in GNU Radio have typically used tracking loops which take time to converge and do not leverage reference signals, through re-thinking the approach to PSK demodulation in a message and burst based context we demonstrate a robust new way to build modems!

http://photos2.meetupstatic.com/photos/event/7/1/f/a/600_441329178.jpeg

• "Hacking an RF Shock Collar" by Tim K (https://twitter.com/bjt2n3904)

GNU Radio is an awesome tool for reverse engineering, but people seem to get stuck somewhere between "Complex to Mag", Audacity, and MS Paint. It's not as hard to get packets out in "real time" as you might think. In this session, I'll build a transceiver from the ground up for the shock collar from DEFCON 23's Wireless Village.

http://photos4.meetupstatic.com/photos/event/1/b/9/0/600_441307056.jpeg

Tim's biggest weakness is writing bios about himself. He likes circuit boards, radios, teaching, and making things that just work(TM).

A big thank you to Virginia Tech (http://www.ncr.vt.edu/arlington/) and the Hume Centre (http://www.hume.vt.edu) for hosting us!

http://photos4.meetupstatic.com/photos/event/5/9/e/8/600_441083016.jpeg

The GNU Radio conference (http://www.trondeau.com/gnu-radio-conference-2015/) will take place from 24-28 August in Washington, DC.

http://photos4.meetupstatic.com/photos/event/5/a/0/8/600_441083048.jpeg

What an event! Also a great time to host our meetup. If you'd like to present at the meetup, please get in touch. The agenda is set for the conference (http://www.trondeau.com/grcon15-agenda/) itself, but you can still register (http://www.trondeau.com/gnu-radio-conference-2015/) for that!

The meetup will be an opportunity for both conference-goers, and non-conference-goers to get together!

If you'd like to present again, that's great! If you'd like to present in more detail/less formally, then perfect!

If you missed out on the conference, and have some work in progress, let us know!

Directions:

The Virginia Tech Research Centre is located within walking distance of the Ballston Metro Station, which serves the Orange Line and Silver Line.

For more transportation info, please see: http://www.wmata.com/