huawei (oscilloscopes and frequency analysis)

Tue Jun 18 20:31:37 UTC 2013

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