Alexander List's blog

The New America Foundation's Open Technology Initiative has published an analysis of the US National Broadband Plan.

The Open Spectrum Alliance has drafted a position paper for the EU Spectrum Summit in Brussels, March 22-23, 2010.

Open Spectrum Alliance has filed a
response to the RSPG's report on Cognitive Technologies.

Futurezone Article: Freie Frequenzen für ein freies Netz:
http://futurezone.orf.at/stories/1628079/
Programme description (in German): http://oe1.orf.at/programm/200909277101.html
Announcement in ORF ON Futurezone: http://futurezone.orf.at/tipps/stories/1628086/

We have submitted a response to the RSPG's consultation on the coordination of EU spectrum interest:

http://rspg.groups.eu.int/_documents/consultations/comments_spectruminte...

Back in 2005, James E. Cooley looked at the (under)utilisation of the radio frequency spectrum in his master's thesis:

http://dspace.mit.edu/handle/1721.1/33894

He isn't only documenting the utilisation of RF spectrum based on time, frequency and location, but also provides techniques for the detection of incumbent users.

So, most of the work necessary for my GNU Radio project on spectrum sensing has already been done...

Thanks to Andreas Müller for pointing me at this.

Curious as I am, I bought myself GNU Radio hardware (USRP) quite a while ago. Now I've also bought a TVRX, RFX400 and RFX900. Check out Ettus research's website for more info on the hardware.

After a few nights of experimenting, I reinstalled my MacBook, installed MacPorts, all dependencies and the recently released GNU Radio 3.2 from svn.

After solving some stupidity I finally managed to build it last night and tune in to a local FM radio station ;). For listening to radio an investment of USD 2k in hardware might be a little overkill.

I'd like to experiment with detection of incumbent users as described on the tools4sdr web site...

My plan looks somehow like this: