Re: [Discuss-gnuradio] 802.16 jammer with USRP/GnuRadio?

2005-10-14 Thread Marcus Leech
Stevie wrote: Traditional jamming is probably hard given the required power levels. Lin and Noubir (google for "On Link Layer Denial of Service in Data Wireless LANs") consider 802.11a and show that jamming just one complete symbol will cause the frame to be retransmitted and so a pulsed jammin

[Discuss-gnuradio] gnuradio and ubuntu

2005-10-14 Thread Marcel Maatkamp
Now that (k)ubunto 5.10 is stable I want to share my installation script because I see many people fail at installing gnuradio. I took the liberty of modifing the scripts posted to this list, because they don't seem fail when something's wrong and modified it so that it is quite easy to modify it

Re: [Discuss-gnuradio] 802.16 jammer with USRP/GnuRadio?

2005-10-14 Thread Stevie
-BEGIN PGP SIGNED MESSAGE- Hash: RIPEMD160 Hi, > Here's an unusual request. > > I'm discussing 802.16 (WiMaX) jamming resistance with some of my > colleagues. Since I do security for a living, I like to think about > these things. I don't see anything in the specs that would > immediately

Re: [Discuss-gnuradio] two channel rx phase relations

2005-10-14 Thread Chuck Swiger
At 09:03 AM 9/14/2005 -0700, Eric Blossom wrote: On Wed, Sep 14, 2005 at 10:47:01AM -0400, cswiger wrote: > Two channels input (mux = 0xf0f0f1f0) - can the two > DDC be phase locked or sync'd ? The phase between them > appears to jump about at random after a > > chan0.set_rx_freq(0,-freq) > cha

[Discuss-gnuradio] 802.16 jammer with USRP/GnuRadio?

2005-10-14 Thread Marcus Leech
Here's an unusual request. I'm discussing 802.16 (WiMaX) jamming resistance with some of my colleagues. Since I do security for a living, I like to think about these things. I don't see anything in the specs that would immediately render a jammer an impractical project for an poorly-funded

Re: [Discuss-gnuradio] USRP connectors

2005-10-14 Thread Matt Ettus
>>Digikey has them, WM17201-ND > > Are there also non-smd versions of these connectors. > This would enable us to build homebrew daughtercards > Or are there cables with this connector on it. There are no through hole or cable connectors that I know of. They are PCI Mezzanine connectors (PMC) i

Re: [Discuss-gnuradio] GNU Radio CVS-current vmcirbuf problems

2005-10-14 Thread LRK
On Fri, Oct 14, 2005 at 08:02:06AM +0930, Berndt Josef Wulf wrote: > > ... gr_vmcircbuf_sysv_shm_factory: Doesn't work > > Testing gr_vmcircbuf_mmap_shm_open_factory... > > ... gr_vmcircbuf_mmap_shm_open_factory: OK > > Testing gr_vmcircbuf_mmap_tmpfile_factory... > > ... gr_vmcircbuf_m