Hardware

Andi Kita akita at qmail.qcc.edu
Wed Jul 8 12:19:23 UTC 2020


What sdr are you using?

I am trying to use usrp b200 and I was not able to make it work. I have
read the research paper wrote by sylvain but that's for the old code.

Is there anything or any other hardware that I could use? I have a b210
b200 bladerf x115 and a limesdr full board. I don't want to spend any money
on the cube dongle and usrp1 are not made anymore.

Any suggestions would be appreciated.



On Wed, Jul 8, 2020, 4:31 AM fe8769 <fe8769 at gmail.com> wrote:

> hello
>
> I need some explanations of the way it is working
>
> this line is working fine
> ./gmr1_rx_sdr.py --args airspy -a 927 -s 6000000 -B L -f 1553968750 -g 19
> -b 40
> then after
> ./gmr1_rx 4 /tmp/arfcn_927.cfile
> wireshark is giving all informations
>
> I have "immediate assignment on ARFCN 928 929 930 931
>
> I tried to do the same with 928 929 930 931
> ./gmr1_rx_sdr.py --args airspy -a 929 -s 6000000 -B L -f 1554031250 -g 25
> -b 40
> with 1 Gb of datas, I can retrieve only 2 frames in wireshark
>
> I'm sure there is traffic on these 4 channels
>
> Is "immediate assignment " means TCH3 and voice ?
>
> I tried all branches on git hub with same result
>
> What is usage of gmr1_process_recording.py ? and arguments
> What is usage of gmr1_ambe_decode and gmr1_rach_gen
>
> Thanks for help
>
> --
>
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