Re: [Discuss-gnuradio] Capture and plot 802.11 frames

[Marcus D. Leech]

On 05/10/2011 12:30 PM, Stratos Keranidis wrote:
> Hello,
>
> I am a new user of the GNU platform.
>
> I managed to install the paltform on my Ubuntu 10.4 PC
> and I am currently trying to capture 802.11 frames that are 
> transmitted in my
> WLAN.
>
> I am using these tools:
> usrp_oscope.py -f 2.412G
> uhd_fft.py -f 2.412G
>
> All I can see is noise on this frequency, although I confirm that 
> packets are transmitted between my PC and my router on this frequency.
>
> Does my problem have to do something with the settings of these tools 
> or do I miss something else.
>
> Can you provide me with some tutorial link, where I can find more info 
> on the basic usage of USRP?
>
> Thank you in advance,
> Stratos.
You don't say what your hardware setup is.  Do you have an antenna 
plugged in?  Is it on the correct port?  Have you tried setting
  the gain upwards in uhd_fft.py?

What version of Gnu Radio are you running?  What version of UHD?