osmocom-sdr

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912 discussions

Transmitting Digital ATSC TV signals using Osmo-fl2k
by Chase Johnson 15 May '18

15 May '18

Hi all, I am new to Software Defined Radio and I was wondering if it was possible to broadcast a Digital ATSC TV channel using Osmo-fl2k ( https://osmocom.org/projects/osmo-fl2k/wiki/Osmo-fl2k). I am in need of a device that can do this for my work and didn't want to pay $1000+ for the equipment designed for this purpose. Thank you for your help, Chase Johnson -- Sent from an Apple Newton MessagePad 100 https://goo.gl/v82H1C

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Discerning FL2K devices with LDOs versus switching regulators
by Mac A. Cody 12 May '18

12 May '18

Greetings, In Steve Markgraf's slide presentation (http://people.osmocom.org/steve-m/fl2k_slides/osmo-fl2k.html), do slides 16 and 17 imply that some FL2K devices have LDO regulators while other using switching regulators? Obviously, the FL2K devices that have LDO regulators are preferred, due to fewer spurious RF emissions. How can one determine which FL2K devices have LDOs? Can an FL2K device be reworked to use LDO regulators? Thanks, Mac

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fl2k_tcp stream format.
by Anton Janovsky 09 May '18

09 May '18

Hi I would like to use the fl2k_tcp utility to transmit remotely but are not sure what is tje format of stream to send to this utility. 1) Do I send an IQ stream or audio stream? 2) is there some example to generate stream for this and format explenation? 3) how do you define carrier freq? 73 ' Anton

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osmo-fl2k baseband to carrier
by azerty lr 03 May '18

03 May '18

Hello, First thank you for this FL2000 hack, it's very nice! I tried to make an FM & AM transmitter with it and GNU Radio. It's working fine if I save to a file and then use fl2k_file to transmit the data but with the tcp server and fl2k_tcp, my computer is not fast enough to sample in real time at 100 MHz. I also tried with a 35 Mhz sampling rate but it's not real time. Here is the diagram I used. Is there a possibility to avoid sampling at a very fast rate if the data bandwidth is small to do the baseband to carrier shift? [cid:0115622e-668a-46ae-8e49-07a3a7aba391] Thank you, Best regards, Jean-Paul

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IQ interleaved samples for osmo-fl2k
by Matthias Brändli 01 May '18

01 May '18

Hi all, I just wanted to let you know I am working on adding interleaved IQ support (to red and green DAC). Haven't had time to test it yet. http://git.mpb.li/git/osmo-fl2k/commit/?id=db70e939c8b1e8ab19d1baef5c98c7ab… Is anybody else working on this? For contributions, do you prefer patch files? Best regards and thanks for this development! mpb

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fl2k: Versioning?
by Müller, Marcus (CEL) 29 Apr '18

29 Apr '18

Hi everyone, hi especially Steve, I'm in the process of making a distro package for fl2k for sharing and inclusion in my bootable Fedora sticks; as a version, I'd use 0.0.0.1- githash, but I think that's an understatement, because it looks to me like fl2k was officially released at OsmoCon. Now, I'm not the author, and I'd hate to be the one to define today's git head as version 1, or something like that, but I honestly think that it's worth encouraging tagging of a release (as it would make it easy to refer to things like "hey, that used to work with 1.0.2.1, but broke in 1.0.3.1", or include it with other software etc). Would it be very annoying to kindly request that you add a version tag, and to even brazenly recommend semver.org as versioning scheme? Thanks, and I'm having great fun with this, Marcus

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Building on Mac OS? reference platform?
by Ian Lowe 29 Apr '18

29 Apr '18

Hi folks, I tried building the code on Mac, and it threw a bag full of errors. Does anyone have a working mechanism/script to build on Mac, if not, what was the reference platform? What was this built on? I.

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gr-fosphor is choppy at audio frequency
by Ignatius Rivaldi 28 Apr '18

28 Apr '18

Hi, I'm (ab)using gr-fosphor for audio spectrum visualization by using float to complex because it is the most colorful spectrum analyzer that I have. Unfortunately, for some reason gr-fosphor is choppy at 48 kHz, while it is smooth at rtl-sdr output, about 2 MSPS or so. Is there any FFT configuration setting like other spectrum analyzer to change how many FFT bins and the framerate?

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have you tried using a powered USB HUB?
by Justin Kelly 27 Apr '18

27 Apr '18

Hi Joshua, have you tried your experiment with a powered USB hub? I've found a number of times that a powered hub can solve mystery problems with USB devices. Cheers! -Justin N2TOH ---------- Forwarded message ---------- From: DC7IA <mailinglists(a)dc7ia.eu> To: osmocom-sdr(a)lists.osmocom.org Cc: Bcc: Date: Thu, 26 Apr 2018 19:56:01 +0200 Subject: [osmo-fl2k] can't receive anything Hi there, I've set up osmo-fl2k yesterday and since then I'm trying to get WBFM or GSM working, but I cannot receive anything. Software does not give me any errors, so I don't know where to look for the problem. Maybe I should note that I'm only able to use USB 2.0 on my Thinkpad T400, could that make trouble as it is a USB 3.0 device? -- *73 Joshua Hoffmann DC7IA | KK4RVI * stellv. AJW-Referent im Distrikt O (Süd-Westfalen) AJW-Seite des Distriktes <http://www.darc.de/distrikte/o/referate/ajw/> Diese E-Mailadresse ist ausschließlich für Mailinglisten E-Mails. Normale E-Mails an DC7IA(a)DARC.de senden, da sie andernfalls nicht rechtzeitig gelesen werden. -- --Evil people do evil things, how is irrelevant.

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[PATCH] Make sdrangelove friendly for packaging
by Dave Olsthoorn 27 Apr '18

27 Apr '18

This patch makes sdrangelove able to install through 'make install' and also makes the plugin manager able to load from a specific directory like /usr/lib64/sdrangelove/plugins while sdrangelove is inside /usr/bin. To load plugins from a specific directory start cmake with '-DSDRANGELOVE_PLUGIN_DIR:PATH=/path/to/plugin/directory' and compile, to make installing even more easy 'make install' installs the plugins in the specified directory. Signed-off-by: Dave Olsthoorn <dave(a)bewaar.me> --- CMakeLists.txt | 24 ++++++++++++++++++++++++ plugins/channel/nfm/CMakeLists.txt | 6 +++++- plugins/channel/tcpsrc/CMakeLists.txt | 5 +++++ plugins/channel/tetra/CMakeLists.txt | 4 ++++ plugins/samplesource/gnuradio/CMakeLists.txt | 4 ++++ plugins/samplesource/osmosdr/CMakeLists.txt | 4 ++++ plugins/samplesource/rtlsdr/CMakeLists.txt | 4 ++++ sdrbase/plugin/pluginmanager.cpp | 13 ++++++++++++- 8 files changed, 62 insertions(+), 2 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 72ce30e..b0d38d5 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -21,6 +21,10 @@ find_package(PkgConfig) find_package(FFTW3F) find_package(FFTS) +IF(DEFINED SDRANGELOVE_PLUGIN_DIR) + add_definitions( -DSDRANGELOVE_PLUGIN_DIR=\"${SDRANGELOVE_PLUGIN_DIR}\") +ENDIF() + IF(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|AMD64|x86") SET(USE_SIMD "SSE2" CACHE STRING "Use SIMD instructions") @@ -250,6 +254,19 @@ target_link_libraries(sdrbase ${LIBUSB_LIBRARIES} ) +if(UNIX) +# we only the version the library under unix systems +set_target_properties(sdrbase PROPERTIES + VERSION 0.0.0 + SOVERSION 0 +) + +# and only install in lib or lib64 under unix systems +install(TARGETS sdrbase + LIBRARY DESTINATION lib${LIB_SUFFIX} +) +endif(UNIX) + if(LIBFFTS_FOUND) target_link_libraries(sdrbase ${LIBFFTS_LIBRARIES}) else(LIBFFTS_FOUND) @@ -308,6 +325,13 @@ target_link_libraries(sdrangelove ${OPENGL_LIBRARIES} ) +if(UNIX) +# only install in bin when we are on unix +install(TARGETS sdrangelove + RUNTIME DESTINATION bin +) +endif(UNIX) + if(WIN32) set_target_properties(sdrangelove PROPERTIES LINK_FLAGS_DEBUG "/SUBSYSTEM:CONSOLE") set_target_properties(sdrangelove PROPERTIES COMPILE_DEFINITIONS_DEBUG "_CONSOLE") diff --git a/plugins/channel/nfm/CMakeLists.txt b/plugins/channel/nfm/CMakeLists.txt index feeb891..7abfe56 100644 --- a/plugins/channel/nfm/CMakeLists.txt +++ b/plugins/channel/nfm/CMakeLists.txt @@ -44,4 +44,8 @@ target_link_libraries(demodnfm sdrbase ) -qt5_use_modules(demodnfm Core Widgets OpenGL Multimedia) \ No newline at end of file +if(DEFINED SDRANGELOVE_PLUGIN_DIR) + install(TARGETS demodnfm DESTINATION ${SDRANGELOVE_PLUGIN_DIR}) +endif() + +qt5_use_modules(demodnfm Core Widgets OpenGL Multimedia) diff --git a/plugins/channel/tcpsrc/CMakeLists.txt b/plugins/channel/tcpsrc/CMakeLists.txt index df7c4d4..6ea431b 100644 --- a/plugins/channel/tcpsrc/CMakeLists.txt +++ b/plugins/channel/tcpsrc/CMakeLists.txt @@ -44,4 +44,9 @@ target_link_libraries(demodtcpsrc sdrbase ) +if(DEFINED SDRANGELOVE_PLUGIN_DIR) + install(TARGETS demodtcpsrc DESTINATION ${SDRANGELOVE_PLUGIN_DIR}) +endif() + + qt5_use_modules(demodtcpsrc Core Widgets OpenGL Network) diff --git a/plugins/channel/tetra/CMakeLists.txt b/plugins/channel/tetra/CMakeLists.txt index f46c2bb..6cec401 100644 --- a/plugins/channel/tetra/CMakeLists.txt +++ b/plugins/channel/tetra/CMakeLists.txt @@ -44,4 +44,8 @@ target_link_libraries(demodtetra sdrbase ) +if(DEFINED SDRANGELOVE_PLUGIN_DIR) + install(TARGETS demodtetra DESTINATION ${SDRANGELOVE_PLUGIN_DIR}) +endif() + qt5_use_modules(demodtetra Core Widgets OpenGL Multimedia) diff --git a/plugins/samplesource/gnuradio/CMakeLists.txt b/plugins/samplesource/gnuradio/CMakeLists.txt index 0e08608..7dfa2dd 100644 --- a/plugins/samplesource/gnuradio/CMakeLists.txt +++ b/plugins/samplesource/gnuradio/CMakeLists.txt @@ -82,6 +82,10 @@ target_link_libraries(inputgnuradio sdrbase ) +if(DEFINED SDRANGELOVE_PLUGIN_DIR) + install(TARGETS inputgnuradio DESTINATION ${SDRANGELOVE_PLUGIN_DIR}) +endif() + qt5_use_modules(inputgnuradio Core Widgets OpenGL Multimedia) endif(Boost_FOUND AND GNURADIO_RUNTIME_FOUND AND GNURADIO_OSMOSDR_FOUND) diff --git a/plugins/samplesource/osmosdr/CMakeLists.txt b/plugins/samplesource/osmosdr/CMakeLists.txt index 9dc9705..5648277 100644 --- a/plugins/samplesource/osmosdr/CMakeLists.txt +++ b/plugins/samplesource/osmosdr/CMakeLists.txt @@ -51,4 +51,8 @@ target_link_libraries(inputosmosdr sdrbase ) +if(DEFINED SDRANGELOVE_PLUGIN_DIR) + install(TARGETS inputosmosdr DESTINATION ${SDRANGELOVE_PLUGIN_DIR}) +endif() + qt5_use_modules(inputosmosdr Core Widgets OpenGL Multimedia) diff --git a/plugins/samplesource/rtlsdr/CMakeLists.txt b/plugins/samplesource/rtlsdr/CMakeLists.txt index 35c4081..d7c78c6 100644 --- a/plugins/samplesource/rtlsdr/CMakeLists.txt +++ b/plugins/samplesource/rtlsdr/CMakeLists.txt @@ -47,4 +47,8 @@ target_link_libraries(inputrtlsdr sdrbase ) +if(DEFINED SDRANGELOVE_PLUGIN_DIR) + install(TARGETS inputrtlsdr DESTINATION ${SDRANGELOVE_PLUGIN_DIR}) +endif() + qt5_use_modules(inputrtlsdr Core Widgets OpenGL Multimedia) diff --git a/sdrbase/plugin/pluginmanager.cpp b/sdrbase/plugin/pluginmanager.cpp index 325fb8b..1c19388 100644 --- a/sdrbase/plugin/pluginmanager.cpp +++ b/sdrbase/plugin/pluginmanager.cpp @@ -8,6 +8,17 @@ #include "dsp/dspengine.h" #include "dsp/samplesource/samplesource.h" +/** + * Binaries are often placed in /usr/bin and plugins in /usr/lib* somewhere + * + * This ifdef and define is for packaging purposes so we can override the plugin directory + * since the plugins are not in the directory or the higher directories than where the binary + * exists. The original configuration is still the fallback. + */ +#ifndef SDRANGELOVE_PLUGIN_DIR +#define SDRANGELOVE_PLUGIN_DIR QApplication::instance()->applicationDirPath() +#endif + PluginManager::PluginManager(MainWindow* mainWindow, DSPEngine* dspEngine, QObject* parent) : QObject(parent), m_pluginAPI(this, mainWindow, dspEngine), @@ -25,7 +36,7 @@ PluginManager::~PluginManager() void PluginManager::loadPlugins() { - QDir pluginsDir = QDir(QApplication::instance()->applicationDirPath()); + QDir pluginsDir = QDir(SDRANGELOVE_PLUGIN_DIR); loadPlugins(pluginsDir); -- 2.14.3

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