Sumit, try the 5 GHz band, not the 2.4GHz band.

gr-ieee can decode ERP-OFDM PPDUs used in 5GHz but can't decode
DSSS-OFDM PPDUs (=OFDM packets with DSSS PLCP header) typically used
in 2.4GHz band.

On Tue, Nov 29, 2016 at 9:17 PM, Bastian Bloessl <bloe...@ccs-labs.org> wrote:
> Hi,
>
> On 11/29/2016 10:09 PM, sumit kumar wrote:
>>
>> Yes its strange !  Initially I thought some issue with my transmitter,
>> but wireshark doesn't show activity for gnuradio also.
>
>
> I'm afraid I don't get it.
>
>
>>
>>
>>     I think you should make sure to
>>     - tune to the correct frequency/channel
>>
>> Currently I have put this filter in wireshark wlan_radio.frequency ==
>> 2432 and using gr-ieee 802.11 tx tuned to the same.
>
>
> You will have to configure the card using something like
>
> iw phy <phyname> set channel <channel>
>
> The filter doesn't tune the card to the correct frequency.
>
>
>>     - make sure that the network manager doesn't interfere
>>
>> How to do this ?
>
>
> sudo service network-manager stop
>
> or edit /etc/NetworkManager/NetworkManager.conf
>
>
>
> Best,
> Bastian
>
>
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