- osmocom-sdr - lists.osmocom.org

Re: osmocom-sdr Digest, Vol 17, Issue 3
by Peter Stuge 14 Apr '13

14 Apr '13

Thomas Stowe wrote: > Great, admin failure on the list. I'm unsubscribing, fuck this shit. A shame to see such a strong contributor leave. //Peter

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feedback: Terratec ran - T Stick+
by Thomas Osterried 13 Apr '13

13 Apr '13

Hello, my feedback to http://sdr.osmocom.org/trac/wiki/rtl-sdr and the list of working devices: I buyed a "Terratec ran - T Stick+". It's working. lsusb shows the following IDs: Bus 005 Device 033: ID 0ccd:00d7 TerraTec Electronic GmbH It's a DVB / DAB/DAB+ stick (what ever this means - it's all about SDR ;). Buyed it at conrad for < 20 Eur. I found the device reading http://lehwalder.wordpress.com/2012/12/31/sdr-software-defined-radio/ It's already mentioned in http://www.randomprojects.org/wiki/Software_defined_radio#Terratec_ran_T_St… Thank you for your good work.. - Thomas

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[PATCH 1/2] doxygen package needs to be detetected before the doxygen is used
by Jaroslav Škarvada 09 Apr '13

09 Apr '13

Without this patch the DOXYGEN_EXECUTABLE is set too late which results in build failure when processing swig directory (with ENABLE_DOXYGEN). Signed-off-by: Jaroslav Škarvada <jskarvad(a)redhat.com> --- CMakeLists.txt | 1 + docs/CMakeLists.txt | 5 ----- 2 files changed, 1 insertion(+), 5 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index a9334c8..a1af563 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -116,6 +116,7 @@ find_package(GnuradioFCD) find_package(LibOsmoSDR) find_package(LibRTLSDR) find_package(LibMiriSDR) +find_package(Doxygen) if(NOT GRUEL_FOUND) message(FATAL_ERROR "Gruel required to compile osmosdr") diff --git a/docs/CMakeLists.txt b/docs/CMakeLists.txt index f16fbf6..446b86a 100644 --- a/docs/CMakeLists.txt +++ b/docs/CMakeLists.txt @@ -18,11 +18,6 @@ # Boston, MA 02110-1301, USA. ######################################################################## -# Setup dependencies -######################################################################## -find_package(Doxygen) - -######################################################################## # Begin conditional configuration ######################################################################## if(ENABLE_DOXYGEN) -- 1.8.1.4

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RTL_TCP Output
by Chris Svendsen 31 Mar '13

31 Mar '13

I am attempting to write a program in c++ to transform the output of RTL_TCP to an audio device as nFM 12500 bandwidth. The problem is I have no idea where to even start could someone point me in the right direction to find out what format the out put of RTL_TCP is or where to find some documentation on how to even start converting it to audio. thanks for your time

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Re: "ld: warning: could not create compact unwind for rtl_source_c::rtl_source_" while building gr-osmosdr
by Trillium 2024 28 Mar '13

28 Mar '13

Please disregard my previous posting. Setting the compiler flag "-march=native" eliminated the error messages.

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"ld: warning: could not create compact unwind for rtl_source_c::rtl_source_" while building gr-osmosdr
by Trillium 2024 28 Mar '13

28 Mar '13

Hello, Thank you for your great software! While building gr-osmosdr yesterday and the day before, I have been getting this new error while compiling. The compiler is gcc 4.7 under Os X 10.5.8 I'm also having unexplained crashes.. Applications that use the library are having issues. Here is the complete message. It occurs twice, Linking CXX shared library libgnuradio-osmosdr.dylib cd /Volumes/xyz/builds/osmocom/gr-osmosdr/build/lib && "/Applications/CMake 2.8-7.app/Contents/bin/cmake" -E cmake_link_script CMakeFiles/gnuradio-osmosdr.dir/link.txt --verbose=1 /opt/local/bin/i386-apple-darwin9-g++-mp-4.7 -O3 -DNDEBUG -arch i386 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5 -dynamiclib -Wl,-headerpad_max_install_names -compatibility_version 0.0.1 -o libgnuradio-osmosdr.0.0.1git.dylib -install_name /Volumes/xyz/builds/osmocom/gr-osmosdr/build/lib/libgnuradio-osmosdr.0.0.1git.dylib CMakeFiles/gnuradio-osmosdr.dir/osmosdr_source_c_impl.cc.o CMakeFiles/gnuradio-osmosdr.dir/osmosdr_sink_c_impl.cc.o CMakeFiles/gnuradio-osmosdr.dir/osmosdr_ranges.cc.o CMakeFiles/gnuradio-osmosdr.dir/osmosdr_device.cc.o CMakeFiles/gnuradio-osmosdr.dir/file/file_source_c.cc.o CMakeFiles/gnuradio-osmosdr.dir/rtl/rtl_source_c.cc.o CMakeFiles/gnuradio-osmosdr.dir/rtl_tcp/rtl_tcp_source_f.cc.o CMakeFiles/gnuradio-osmosdr.dir/rtl_tcp/rtl_tcp_source_c.cc.o -L/opt/local/lib /opt/local/lib/libboost_thread-mt.dylib /opt/local/lib/libboost_system-mt.dylib /opt/local/lib/libgruel.dylib /opt/local/lib/libgnuradio-core.dylib /opt/local/lib/libgnuradio-core.dylib /opt/local/lib/librtlsdr.dylib /opt/local/lib/libgnuradio-core.dylib /opt/local/lib/librtlsdr.dylib ld: warning: could not create compact unwind for rtl_source_c::rtl_source_c(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&): stack subq instruction is too different from dwarf stack size ld: warning: could not create compact unwind for rtl_source_c::rtl_source_c(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&): stack subq instruction is too different from dwarf stack size ..... Then a few lines down, it happens a second time.. Linking CXX shared module _osmosdr_swig.so cd /Volumes/xyz/builds/osmocom/gr-osmosdr/build/swig && "/Applications/CMake 2.8-7.app/Contents/bin/cmake" -E cmake_link_script CMakeFiles/_osmosdr_swig.dir/link.txt --verbose=1 /opt/local/bin/i386-apple-darwin9-g++-mp-4.7 -O3 -DNDEBUG -arch i386 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5 -bundle -Wl,-headerpad_max_install_names -o _osmosdr_swig.so CMakeFiles/_osmosdr_swig.dir/osmosdr_swigPYTHON_wrap.cxx.o -L/opt/local/lib /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/libpython2.7.dylib ../lib/libgnuradio-osmosdr.0.0.1git.dylib /opt/local/lib/libboost_thread-mt.dylib /opt/local/lib/libboost_system-mt.dylib /opt/local/lib/libgruel.dylib /opt/local/lib/libgnuradio-core.dylib /opt/local/lib/librtlsdr.dylib /opt/local/lib/libgnuradio-core.dylib /opt/local/lib/librtlsdr.dylib ld: warning: could not create compact unwind for swig::SwigPySequence_Ref<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >::operator std::basic_string<char, std::char_traits<char>, std::allocator<char> >() const: stack subq instruction is too different from dwarf stack size ld: warning: could not create compact unwind for swig::SwigPySequence_Ref<osmosdr::device_t>::operator osmosdr::device_t() const: stack subq instruction is too different from dwarf stack size ld: warning: could not create compact unwind for swig::SwigPySequence_Ref<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::operator std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >() const: stack subq instruction is too different from dwarf stack size ld: warning: could not create compact unwind for swig::SwigPySequence_Ref<osmosdr::range_t>::operator osmosdr::range_t() const: stack subq instruction is too different from dwarf stack size ???

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Broadcast FM subcarrier decoding?
by Alan Corey 28 Mar '13

28 Mar '13

This might be a better question for the Gnuradio list, but for years I've known that some broadcast FM stations actually transmit a second audio program which is somehow modulating a subcarrier in the main transmission. It probably carries mostly elevator music type junk but is rumored to be commercial-free (a rare thing in the US!). I remember seeing dedicated receivers advertised for this, but never actually bought one because I wasn't sure it was active in my area. These date back to Lafayette Electronics days I think and ever since so 40 years or more. I've noticed (in SdrSharp) that on some FM stations I can see what look like they might be subcarriers on either side of the main signal. Anyone decoded those? Alan ----- Radio Astronomy - the ultimate DX

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RTL_TCP Commands
by Chris Svendsen 26 Mar '13

26 Mar '13

Sending commands to RTL_TCP What format do the commands need to be in order to change the frequency of RTL_TCP. I have tried the following and the frequency will change but no to the frequency that is expected for example: This code : char SET_FREQUENCY[] ={0x01}; string Freq = string(SET_FREQUENCY,1)+"500000000"; answer = send(sConnect,Freq.c_str(),11,0); Changes the freq to this: client accepted! set freq 892350512 ll+, now 1 ll+, now 2 Any help would be greatly appreciated as i have been stuck on this for days. Thanks

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RTL_TCP Commands
by Chris Svendsen 26 Mar '13

26 Mar '13

Thank you all for the quick response. Unfortunately I'm still having some trouble. This is what I have so far ( Its a lil messy but just for testing it should work ) This is based on the Client implementation: http://cgit.osmocom.org/gr-osmosdr/tree/lib/rtl_tcp/rtl_tcp_source_f.cc#n275 #define COMM_SET_FREQ ((unsigned char) 0x01) struct command{ unsigned char cmd; unsigned int param; }; unsigned char cmds; int iFreq = 500000000; cmds = COMM_SET_FREQ; struct command cmd = {cmds, htonl(iFreq)}; answer = send(sConnect, (const char*)&cmd, sizeof(cmd), 0); and the response is : client accepted! set freq -858993635 ll+, now 1 ll+, now 2 ll+, now 3 I'm sure I'm missing something I just don't know what. Thanks

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Simple SDR transmitter
by Mathias Coinchon 20 Mar '13

20 Mar '13

Hello, You may be interest by this project from Tipok: http://tipok.org.ua/node/41 It's a simplified and low cost SDR transmission interface using an FX2 USB controller and an AD9957 modulator/DAC. Here he's using it to create a DAB digital radio transmission using CRC mmbtools DAB multiplexer/modulator. Mathias opendigitalradio.org

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