huawei (oscilloscopes and frequency analysis)

Tom Morris blueneon at gmail.com
Tue Jun 18 21:42:29 UTC 2013


There's already code out there for the GNURadio project's software defined
radio infrastructure that supports some very basic LTE analysis.... using a
$20 or less USB DTV tuner stick!! Only a matter of time before some radio
devices with a lot more bandwidth become affordable and easily accessible.
https://github.com/Evrytania/LTE-Cell-Scanner



On Tue, Jun 18, 2013 at 4:31 PM, Phil Fagan <philfagan at gmail.com> wrote:

> now THAT would be a cool project!
>
>
> On Tue, Jun 18, 2013 at 2:25 PM, Jazz Kenny <trapperjohn117 at gmail.com
> >wrote:
>
> > On Mon, Jun 17, 2013 at 7:38 AM, Tony Patti <tony at swalter.com> wrote:
> > > Thanks, I liked your pointer to the SDR.
> > >
> > > But can I ask you for a bit more info about your statement
> > >
> > > "where oscilloscopes and frequency analysis is available to anyone with
> > some
> > > Google-fu"
> > >
> > > We don't need as much test equipment before?
> > >
> > > (as a guy with an oscilloscope in his basement, I don't see how Google
> > can
> > > do what that device can).
> > >
> > >
> > >
> > > Thanks,
> > >
> > > Tony
> >
> > All I meant was that the tools are relatively accessible to anyone
> > with the desire to look - An oscilloscope with the necessary freq.
> > range to study 4G communications can be bought or fabricated (all
> > that's really needed is a microcontroller with an ADC, some gain amps
> > and time), an appropriate SDR to intercept the signals shouldn't be
> > too hard to source, and that community has been blowing up for a few
> > years now. Hell, there are even a couple examples of LGA 4G receivers
> > floating around in the wild (gtm801, for example). Ignoring all of
> > that, there are commercial options like the YellowFin 4G analyzer. No
> > idea how much one of those costs, though.
> >
> > Now, like Jay said, there are the issues of encryption and such, but
> > that's just another barrier to entry. A little Google-fu could
> > probably source a paper dealing with its implementation, at least.
> >
> > I doubt it would be easy, but if the motivation exists, the required
> > test bed is easily assembled, and the information is available. Not
> > like we're talking about intercepted military GPS bands or something.
> > It's a consumer device that can sit on a workbench and be tested at
> > the leisure of the security researcher.
> >
> > - J.
> >
> >
>
>
> --
> Phil Fagan
> Denver, CO
> 970-480-7618
>



-- 
--
Tom Morris, KG4CYX
Mad Scientist For Hire
Chairman, South Florida Tropical Hamboree / Miami Hamfest
Engineer, WRGP Radiate FM, Florida International University
786-228-7087
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