February 2012 - tetra - lists.osmocom.org

TETRA test samples
by Dieter Spaar 01 Feb '13

01 Feb '13

Hello, there is now a test sample (bit file) with speech at http://tetra.osmocom.org/trac/wiki/Test_Samples Please only add samples to this page if you have the full agreement for publishing from all involved parties (e.g. operator of the network, people speaking during the capture). This is not the place to share captures which were made from someone else without their knowledge. Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de

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Help tetra-rx error while loading shared libraries: libosmocore.so.4:
by Jean-Marc Dhainaut 19 Mar '12

19 Mar '12

Hello, tgis is my problem after download and install libosmore by git and install it ( no soucy) i go to osmo-tetra/src I do a make, for compile tetra-rx etc ... ok, no soucy i make a "tmp" directory i make the two fifo mkfifo ./tmp/out.float mkfifo ./tmp/out.bit Ok, no soucy for the moment I have a funcube and i'm launching with these commands ./osmo-tetra/src/demod/python/fcdp-tetra_demod_fft.py -D hw:1,0 -o ./tmp/out.float -L12500 | ./osmo-tetra/src/float_to_bits ./tmp/out.float ./tmp/out.bits | ./osmo-tetra/src/tetra-rx ./tmp/out.bits Ok the program Osmo-Tetra FCDP"is running but i have an error msg from tetra-rx ./osmo-tetra/src/tetra-rx: error while loading shared libraries: libosmocore.so.4: cannot open shared object file: No such file or directory" What is the problem ? i think the librairies are correctly installed These are the terminal return message ./osmo-tetra/src/demod/python/fcdp-tetra_demod_fft.py -D hw:1,0 -o ./tmp/out.float -L12500 | ./osmo-tetra/src/float_to_bits ./tmp/out.float ./tmp/out.bits | ./osmo-tetra/src/tetra-rx ./tmp/out.bits ./osmo-tetra/src/tetra-rx: error while loading shared libraries: libosmocore.so.4: cannot open shared object file: No such file or directory >>> gr_fir_ccc: using 3DNow!Ext sample rate: 96000 >>> gr_fir_ccf: using 3DNow! Thank for your help

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is tetra encryption is broken
by Akib Sayyed 24 Feb '12

24 Feb '12

Can anyone will put some focus on Tetra Encryption is any1 have tetra encryptions details and there key length etc did any1 ever done cryptanalysis on it ?? also whats the current status of osmoTetra are we able to hear no encryption traffic of tetra?? or some modification is still needed ?? where we can find details of tetra specs?? please consider me as very noooooob in Tetra -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243

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tetra-demod.py launch problem
by Jean-Marc Dhainaut 23 Feb '12

23 Feb '12

Hello, i am a newbie and i a just install osmo tetra under ubuntu 11.10 When i go : cd osmo-tetra cd src cd demod cd python and launch python tetra-demod.py This is the terminal answer gr_fir_ccc: using 3DNow!Ext sample rate: 195312 in.dat: No such file or directory Traceback (most recent call last): File "tetra-demod.py", line 67, in <module> my_top_block().run() File "tetra-demod.py", line 45, in __init__ IN = gr.file_source(gr.sizeof_gr_complex, options.input_file) File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gnuradio_core_io.py", line 385, in file_source return _gnuradio_core_io.file_source(*args, **kwargs) RuntimeError: can't open file What is the problem ? i can't continue with this files problems. Thank for your help.

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