[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] Capture and plot 802.11 frames
From: |
Stratos Keranidis |
Subject: |
Re: [Discuss-gnuradio] Capture and plot 802.11 frames |
Date: |
Wed, 5 Oct 2011 19:54:26 +0300 |
Hi Marcus,
first I want to thank you for your very fast reply.
I am sorry for not reporting details about my system setup.
I am using a USRP1 model and I have one XCVR2450 daughterboard attached.
Two antennas are connected at the pigtails on the daughterboard.
I used the build-gnuradio install script to for installation and so I
downloaded the latest versions from the 'main' branch for both UHD and
GNU Radio.
I just set the gain at the maximum level and I notice that signals can
be received at the level of -35dBm.
Can I use the usrp_oscope.py to capture plots of the transmitted frames.
My main aim is to able to plot the exact duration of a transmitted
frame, ack packets etc.
I hope the information I provided can help you.
Thank you,
Stratos.
On Wed, Oct 5, 2011 at 7:33 PM, Marcus D. Leech <address@hidden> wrote:
>
> 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?
>
>
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio