The problem could be the transmission of data via ethernet port.
Are you working under virtualized OS conditions? These could be the origin of 
your problem, virtualized ethernet ports don’t reach enough high data rates.
Another possibility could be that your ethernet adapter isn’t a gigabyte 
ethernet adapter.
Finally, if you work with Matlab/Simulink, you can have the same problem. In 
this case I recommend you to change to GNU-Radio and its flowchart interface, 
GRC.



De: Discuss-gnuradio [mailto:discuss-gnuradio-bounces+vdiez=ikerlan...@gnu.org] 
En nombre de Qurat-Ul-Ann Akbar
Enviado el: jueves, 25 de mayo de 2017 17:44
Para: GNURadio Discussion List
Asunto: [Discuss-gnuradio] IEEE 802.11 receiver not working for high sampling 
rates

Hi,

I am working with USRPs N210 and GNU Radio version 3.7. I wasn't able to work 
with higher sampling rate like 20 MHZ used in WiFi and that's why I bought a 
new workstation with better processor. However, the module still isn't working. 
The receiver isn't receiving anything at 20 MHZ if it's QAM 64 or BPSK . It 
works perfectly fine with 1 MHZ and receives all data from the transmitter 
USRP. But at 20 MHZ it receives a few WiFi packets from surrounding far off APs 
in the building but isn't receiving anything from the USRP transmitter in the 
room. It doesn't work for 10 MHZ as well.

Can anyone tell me what could be the reason for that? I have tried changing LO 
offset etc.


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