tetra

tetra@lists.osmocom.org

162 discussions

is tetra encryption is broken
by Akib Sayyed 25 Feb '12

25 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

1 0

tetra-demod.py launch problem
by Jean-Marc Dhainaut 24 Feb '12

24 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.

1 0

error with osmo repository wireshark
by fe8769 30 Dec '11

30 Dec '11

hello I know this message is at it wrong place . These is an error when we tried to run wireshark from the repository http://cgit.osmocom.org/cgit/wireshark/ when running , the program is crashing with error : /usr/local/lib/libwireshark.so.0: undefined symbol: py_create_dissector_handle ** ERROR:packet.c:724:dissector_add_uint: assertion failed: (handle!=NULL) ./configure without pyton has the same problem installation of 1.7.1 from wireshark web site is working fine best regards --

1 0

RFC: Osmocom developer workshop 2012
by Harald Welte 15 Dec '11

15 Dec '11

<DISCLAIMER> Please follow-up to openbsc(a)lists.osmocom.org </DISCLAIMER> Hi all, this idea has been around for quite some time, and for 2012 I really want to turn it into reality: I'd like to have a Osmocom developer workshop The idea here is to get all the active contributors of the project together for a couple of days (maybe 2-4 days), in order to exchange ideas, get to know each other better and last but not least work together on ironing out some of the more difficult issues. * City: Regarding the location: I think for me it is only possible to organize it if it is to be held in Berlin. I'mn happy if somebody else wants to host it at some other location, but then that person would also have to take care of local organization. Berlin also has good train and flight connections, which is definitely a plus. * Venue: If it is in Berlin, we might consider talking with c-base or Raumfahrtagentur as possible venues. * Date: Regarding a proposed date, I'm completely open for suggestions. Of course there shouldn't be any overlap with other major FOSS or Sescurity related conferences, and it should also not coincide with major public holidays, as that only makes travel + accomodation more expensive. * Funding: As we don't have that many commercial users of Osmocom projects, getting funding for e.g. travel / accomodation is probably going to be difficult. We can ask the "usual suspects" among those commercial users we know,, but I guess it will only be possible in exceptional cases to provide that kind of funding. Any ideas / comments / feedback is much appreciated. If somebody has a particular suggestion. <DISCLAIMER> Please follow-up to openbsc(a)lists.osmocom.org </DISCLAIMER> Cheers, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

1 1

osmo-tetra make error
by sinager＠tarapippo.net 31 Oct '11

31 Oct '11

Hi, I just upgraded my box to Ubuntu 11.10 and successfully compiled GNURadio 3.4.2, however I'm unable to build osmo-tetra (output below). I had it working on my Ubuntu 10.10 box with GNURadio 3.1 or 3.2 (can't remember exactly now). The latest libosmocore has been compiled and installed. Trying to get closer to the issue I also experimented with the libosmocore/osmo-tetra source versions available when I made the successful install, but I'm getting the same error. I'm not sure whether I'm simply missing some step or I'm facing an incompatibility. Any hint? Thanks S sinager@SIRAD:~/osmo-tetra/src$ make cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c conv_enc_test.c -o conv_enc_test.o conv_enc_test.c: In function âmainâ: conv_enc_test.c:310:11: warning: unused variable âoutâ [-Wunused-variable] conv_enc_test.c:309:6: warning: unused variable âerrâ [-Wunused-variable] cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c testpdu.c -o testpdu.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c phy/tetra_burst_sync.c -o phy/tetra_burst_sync.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c phy/tetra_burst.c -o phy/tetra_burst.o phy/tetra_burst.c: In function âtetra_burst_rx_cbâ: phy/tetra_burst.c:316:2: warning: enumeration value âTETRA_TRAIN_NORM_3â not handled in switch [-Wswitch] phy/tetra_burst.c:316:2: warning: enumeration value âTETRA_TRAIN_EXTâ not handled in switch [-Wswitch] ar r libosmo-tetra-phy.a phy/tetra_burst_sync.o phy/tetra_burst.o ar: creating libosmo-tetra-phy.a cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/tetra_conv_enc.c -o lower_mac/tetra_conv_enc.o lower_mac/tetra_conv_enc.c:34:14: warning: âdump_stateâ defined but not used [-Wunused-function] cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/tch_reordering.c -o lower_mac/tch_reordering.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_tdma.c -o tetra_tdma.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/tetra_scramb.c -o lower_mac/tetra_scramb.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/tetra_rm3014.c -o lower_mac/tetra_rm3014.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/tetra_interleave.c -o lower_mac/tetra_interleave.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/crc_simple.c -o lower_mac/crc_simple.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_common.c -o tetra_common.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/viterbi.c -o lower_mac/viterbi.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/viterbi_cch.c -o lower_mac/viterbi_cch.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/viterbi_tch.c -o lower_mac/viterbi_tch.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c lower_mac/tetra_lower_mac.c -o lower_mac/tetra_lower_mac.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_upper_mac.c -o tetra_upper_mac.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_mac_pdu.c -o tetra_mac_pdu.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_llc_pdu.c -o tetra_llc_pdu.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_llc.c -o tetra_llc.o tetra_llc.c: In function âtllc_defrag_outâ: tetra_llc.c:95:3: warning: implicit declaration of function âtun_allocâ [-Wimplicit-function-declaration] tetra_llc.c:106:1: warning: no return statement in function returning non-void [-Wreturn-type] tetra_llc.c: In function ârx_tm_sduâ: tetra_llc.c:121:2: warning: enumeration value âTLLC_PDUT_DEC_UNKNOWNâ not handled in switch [-Wswitch] tetra_llc.c:121:2: warning: enumeration value âTLLC_PDUT_DEC_ALX_ACKâ not handled in switch [-Wswitch] tetra_llc.c:121:2: warning: enumeration value âTLLC_PDUT_DEC_ALX_RNRâ not handled in switch [-Wswitch] cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_mle_pdu.c -o tetra_mle_pdu.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_mm_pdu.c -o tetra_mm_pdu.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_cmce_pdu.c -o tetra_cmce_pdu.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_sndcp_pdu.c -o tetra_sndcp_pdu.o cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tetra_gsmtap.c -o tetra_gsmtap.o tetra_gsmtap.c: In function âtetra_gsmtap_sendmsgâ: tetra_gsmtap.c:66:3: warning: implicit declaration of function âgsmtap_sendmsgâ [-Wimplicit-function-declaration] tetra_gsmtap.c: In function âtetra_gsmtap_initâ: tetra_gsmtap.c:75:2: warning: implicit declaration of function âgsmtap_source_initâ [-Wimplicit-function-declaration] tetra_gsmtap.c:75:8: warning: assignment makes pointer from integer without a cast [enabled by default] tetra_gsmtap.c:78:2: warning: implicit declaration of function âgsmtap_source_add_sinkâ [-Wimplicit-function-declaration] tetra_gsmtap.c:73:6: warning: unused variable âfdâ [-Wunused-variable] cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -c tuntap.c -o tuntap.o ar r libosmo-tetra-mac.a lower_mac/tetra_conv_enc.o lower_mac/tch_reordering.o tetra_tdma.o lower_mac/tetra_scramb.o lower_mac/tetra_rm3014.o lower_mac/tetra_interleave.o lower_mac/crc_simple.o tetra_common.o lower_mac/viterbi.o lower_mac/viterbi_cch.o lower_mac/viterbi_tch.o lower_mac/tetra_lower_mac.o tetra_upper_mac.o tetra_mac_pdu.o tetra_llc_pdu.o tetra_llc.o tetra_mle_pdu.o tetra_mm_pdu.o tetra_cmce_pdu.o tetra_sndcp_pdu.o tetra_gsmtap.o tuntap.o ar: creating libosmo-tetra-mac.a cc -g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. `pkg-config --libs libosmocore 2> /dev/null` -losmocore -o conv_enc_test conv_enc_test.o testpdu.o libosmo-tetra-phy.a libosmo-tetra-mac.a conv_enc_test.o: In function `decode_schf': /home/sinager/osmo-tetra/src/conv_enc_test.c:59: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:62: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:65: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:69: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:71: undefined reference to `osmo_ubit_dump' conv_enc_test.o:/home/sinager/osmo-tetra/src/conv_enc_test.c:84: more undefined references to `osmo_ubit_dump' follow conv_enc_test.o: In function `build_ndb_schf': /home/sinager/osmo-tetra/src/conv_enc_test.c:106: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:110: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:115: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:125: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:129: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:134: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:140: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:147: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:149: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:153: undefined reference to `osmo_ubit_dump' conv_enc_test.o: In function `decode_sb1': /home/sinager/osmo-tetra/src/conv_enc_test.c:166: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:169: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:172: undefined reference to `osmo_ubit_dump' conv_enc_test.o:/home/sinager/osmo-tetra/src/conv_enc_test.c:176: more undefined references to `osmo_ubit_dump' follow conv_enc_test.o: In function `build_sb': /home/sinager/osmo-tetra/src/conv_enc_test.c:222: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:226: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:231: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:241: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:245: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:250: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:257: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:262: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:267: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:277: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:281: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:289: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:296: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:298: undefined reference to `osmo_ubit_dump' /home/sinager/osmo-tetra/src/conv_enc_test.c:302: undefined reference to `osmo_ubit_dump' conv_enc_test.o: In function `main': /home/sinager/osmo-tetra/src/conv_enc_test.c:338: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:339: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:342: undefined reference to `osmo_pbit2ubit' /home/sinager/osmo-tetra/src/conv_enc_test.c:343: undefined reference to `osmo_pbit2ubit' testpdu.o: In function `testpdu_init': /home/sinager/osmo-tetra/src/testpdu.c:43: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:44: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:45: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:46: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:47: undefined reference to `bitvec_set_uint' testpdu.o:/home/sinager/osmo-tetra/src/testpdu.c:48: more undefined references to `bitvec_set_uint' follow testpdu.o: In function `testpdu_init': /home/sinager/osmo-tetra/src/testpdu.c:50: undefined reference to `bitvec_set_bit' /home/sinager/osmo-tetra/src/testpdu.c:51: undefined reference to `bitvec_set_bit' /home/sinager/osmo-tetra/src/testpdu.c:52: undefined reference to `bitvec_set_bit' /home/sinager/osmo-tetra/src/testpdu.c:54: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:55: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:56: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:57: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:58: undefined reference to `bitvec_set_bit' /home/sinager/osmo-tetra/src/testpdu.c:59: undefined reference to `osmo_hexdump' /home/sinager/osmo-tetra/src/testpdu.c:67: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:68: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:69: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:70: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:71: undefined reference to `bitvec_set_uint' testpdu.o:/home/sinager/osmo-tetra/src/testpdu.c:72: more undefined references to `bitvec_set_uint' follow testpdu.o: In function `testpdu_init': /home/sinager/osmo-tetra/src/testpdu.c:73: undefined reference to `bitvec_set_bit' /home/sinager/osmo-tetra/src/testpdu.c:74: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:75: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:76: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:77: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:78: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:79: undefined reference to `bitvec_set_bit' /home/sinager/osmo-tetra/src/testpdu.c:80: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:81: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:82: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:84: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:85: undefined reference to `bitvec_set_uint' testpdu.o:/home/sinager/osmo-tetra/src/testpdu.c:86: more undefined references to `bitvec_set_uint' follow testpdu.o: In function `testpdu_init': /home/sinager/osmo-tetra/src/testpdu.c:87: undefined reference to `osmo_hexdump' /home/sinager/osmo-tetra/src/testpdu.c:93: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:95: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:96: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:97: undefined reference to `bitvec_set_uint' /home/sinager/osmo-tetra/src/testpdu.c:98: undefined reference to `osmo_hexdump' libosmo-tetra-mac.a(viterbi_cch.o): In function `conv_cch_decode': /home/sinager/osmo-tetra/src/lower_mac/viterbi_cch.c:63: undefined reference to `osmo_conv_decode_init' /home/sinager/osmo-tetra/src/lower_mac/viterbi_cch.c:65: undefined reference to `osmo_conv_decode_scan' /home/sinager/osmo-tetra/src/lower_mac/viterbi_cch.c:66: undefined reference to `osmo_conv_decode_finish' /home/sinager/osmo-tetra/src/lower_mac/viterbi_cch.c:68: undefined reference to `osmo_conv_decode_get_output' /home/sinager/osmo-tetra/src/lower_mac/viterbi_cch.c:70: undefined reference to `osmo_conv_decode_deinit' collect2: ld returned 1 exit status make: *** [conv_enc_test] Errore 1

4 4

[PATCH] fix ordering of gcc food in Makefile
by Alexander Huemer 31 Oct '11

31 Oct '11

--- src/Makefile | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/src/Makefile b/src/Makefile index 38263b9..f6ff0fc 100644 --- a/src/Makefile +++ b/src/Makefile @@ -1,5 +1,5 @@ CFLAGS=-g -O0 -Wall `pkg-config --cflags libosmocore 2> /dev/null` -I. -LDFLAGS=`pkg-config --libs libosmocore 2> /dev/null` -losmocore +LDLIBS=`pkg-config --libs libosmocore 2> /dev/null` -losmocore all: conv_enc_test crc_test tetra-rx float_to_bits tunctl @@ -19,7 +19,6 @@ crc_test: crc_test.o tetra_common.o libosmo-tetra-mac.a tetra-rx: tetra-rx.o libosmo-tetra-phy.a libosmo-tetra-mac.a conv_enc_test: conv_enc_test.o testpdu.o libosmo-tetra-phy.a libosmo-tetra-mac.a - $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ tunctl: tunctl.o -- 1.7.5.4 --vkogqOf2sHV7VnPd--

1 0

[ANNOUNCE] First OsmocomGMR code release
by Harald Welte 17 Oct '11

17 Oct '11

First Osmocom GMR code release As some of the readers may already know, a couple of Osmocom developers have been working on a new sub-project: OsmocomGMR. The primary goal of this project is to provide a reusable and clean implementation of the various layers of GMR-1. What is GMR-1 ? Well, it stands for "GEO Mobile Radio" and it's a set of specifications describing a satellite based mobile phone network heavily inspired from GSM. One of the major commercial operators of GMR-1 technology is "Thuraya", providing coverage over Europe/Africa/Asia/Australia. So far the implementation focused on the lowest layers: * Physical layer with FCCH sync and demodulation support for * pi4-CBPSK and pi4-CQPSK bursts. * Channel coding layer (scrambling/puncturing/convolutional coding/crc/interleaving/...) And some ancillary tools to exploit those: * A good capture tool to listen to particular ARFCN(s) and channelize them properly * Wireshark support (BCCH only so far) The first 'demo application' using all of the above provides functionalities similar to what airprobe is for GSM: An air interface protocol analyzer that goes all the way from capturing data off-the-air to sending packets to wireshark for analysis. Limited to BCCH only currently but this will evolve with time. Development was mainly done by Sylvain Munaut, with help from Dimitri Stolnikov (early signal captures and his great capture tool), Harald Welte (initiating the project) and Steve Margraf (testing different setup and antenna ideas). If you'd like to know more, you are encourated to read the wiki (http://gmr.osmocom.org/) and join the mailing list (http://lists.osmocom.org/mailman/listinfo/gmr) -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

1 0

request for improvement
by fe8769 17 Oct '11

17 Oct '11

hello here are some requests for improvement on osmotetra : 1- after tetra-rx out to console : the way to see who is calling who ? source ID , target ID ,individual call ,TMO , .... 2- real time listening -traffic.out acting as a Fifo thanks --

2 1

About speech decode...
by Eddy 10 Oct '11

10 Oct '11

Dear All.. Finally I can use OSMOCOM-Tetra to decode some Tetra signal by Wireshark. But I have met some problems when speech decode the files on the mailing list. 1. It's always show "0 Channel Frames processed ie 0 Speech Frame" message when I input a bits file(whatever converting from OSMOCOM-Tetra or download from the mailing list providing) to "cdecoder" program.(Of course it will output a useless "blank file".) 2. I tried to input the sample bits files into "sdecoder" program and it can convert a PCM file. If I use some playback programs include aplay(-f S16_LE) to play the PCM file, there's no any readable speech. Does anyone can help me to check this? I don't know what point I missed. Thank a lot! Best Regards Eddy.

1 0

U-RFX board: someone has already tried it?
by Luca Bongiorni 08 Oct '11

08 Oct '11

Hi all, i was wondering if to buy one U-RFX, with the aim of testing it with various projects. Considering that: - are fully compatible with USRP [1]; - are seen as the useful WBX; - i don't have yet a WBX... that would be the perfect substitute for the WBX (imho). Someone has already tried it? Impressions?! [1] http://www.ruby-forum.com/topic/1266576 Cheers, Luca. P.S.: I apologize for the cross-posting.

1 0

← Newer
1
...
8
9
10
11
12
13
14
...
17
Older →

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

tetra