GSM receiver with gr-gsm and Wireshark » History » Version 2
Version 1 (ROQUE, Damien, 02/21/2015 01:11 AM) → Version 2/3 (ROQUE, Damien, 02/21/2015 01:16 AM)
h1. GSM receiver with gr-gsm and Wireshark
In this example, we use a module available at https://github.com/ptrkrysik/gr-gsm. As explained in this page, its installation can be performed thanks to PyBombs which should be already installed if you followed our [[UHD and GNURadio installation|installation guide]]. In you PyBombs directory, issue Remember to conclude the following instruction:
<pre>
sudo ./pybombs install gr-gsm
sudo ldconfig
</pre> installation by @sudo ldconfig@.
In order to use this module with USRP hardware, you should use the following GRC flowgraph.
!airprobe_uhd.grc.png!
Once the GRC program is launched and configured on a GSM beacon frequency, decoded data is displayed on standard output as well as on a UDP socket. Wireshark can thus be used to dissect captured frames:
<pre>
sudo wireshark -k -Y '!icmp && gsmtap' -i lo
</pre>
In this example, we use a module available at https://github.com/ptrkrysik/gr-gsm. As explained in this page, its installation can be performed thanks to PyBombs which should be already installed if you followed our [[UHD and GNURadio installation|installation guide]]. In you PyBombs directory, issue Remember to conclude the following instruction:
<pre>
sudo ./pybombs install gr-gsm
sudo ldconfig
</pre> installation by @sudo ldconfig@.
In order to use this module with USRP hardware, you should use the following GRC flowgraph.
!airprobe_uhd.grc.png!
Once the GRC program is launched and configured on a GSM beacon frequency, decoded data is displayed on standard output as well as on a UDP socket. Wireshark can thus be used to dissect captured frames:
<pre>
sudo wireshark -k -Y '!icmp && gsmtap' -i lo
</pre>