mirror of https://github.com/f4exb/sdrangel.git
93 lines
4.8 KiB
Markdown
93 lines
4.8 KiB
Markdown
======================
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Cloning the repository
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======================
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- Clone as usual
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- Checkout the f4exb branch: `git checkout f4exb`
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==============
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Funcube Dongle
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==============
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Funcube Dongle Pro+ support will need "libasound2-dev" installed. ("libhid" is built from source). Install the rules file "fcdpp.rules" in "/etc/udev/rules.d" to gain the "root access" needed to control the dongle.
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Funcube Dongle Pro+ USB drivers are broken on some hardware with recent kernels. It works well for me with an Atom Chipset, which has Full Speed USB ports, or a "Valleyview" Chromebook (kernel 3.10). A Desktop with the "same" chipset needs kernel 3.2, available with Debian 7 "wheezy". YMMV.
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==========
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For Ubuntu
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==========
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`sudo apt-get install libqt5multimedia5-plugins qtmultimedia5-dev qttools5-dev qttools5-dev-tools libqt5opengl5-dev qtbase5-dev libusb-1.0 librtlsdr-dev`
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`mkdir build && cd build && cmake ../ && make`
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`librtlsdr-dev` is in the `universe` repo. (utopic 14.10 amd64.)
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Use `cmake ../ -DV4L-RTL=ON` to build the Linux kernel driver for RTL-SDR (Experimental). Needs a recent kernel and libv4l2. Will need extra work to support SDRPlay. Needs `cp KERNEL_SOURCE/include/linux/compiler.h /usr/include/linux/` and `cp KERNEL_SOURCE/include/uapi/linux/videodev2.h /usr/include/uapi/linux/` and package `libv4l-dev`.
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The Gnuradio plugin source needs extra packages, including `liblog4cpp-dev libboost-system-dev gnuradio-dev libosmosdr-dev`
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For non standard installations of RTL-SDR library, the GNU Radio runtime and gr.osmocom drivers use the following variables in the cmake command line. The paths specified are just examples:
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- For GNU Radio runtime:
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- Includes: `-DGNURADIO_RUNTIME_INCLUDE_DIRS=/opt/install/gnuradio-3.7.5.1/include`
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- Library: `-DGNURADIO_RUNTIME_LIBRARIES=/opt/install/gnuradio-3.7.5.1/lib/libgnuradio-runtime.so`
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- For gr.osmocom:
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- Includes: `-DGNURADIO_OSMOSDR_INCLUDE_DIRS=/opt/install/gr-osmosdr/include`
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- Library: `-DGNURADIO_OSMOSDR_LIBRARIES=/opt/install/gr-osmosdr/lib/libgnuradio-osmosdr.so`
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- For RTL-SDR library:
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- Includes: `-DLIBRTLSDR_INCLUDE_DIR=/opt/install/rtlsdr/include`
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- Library: `-DLIBRTLSDR_LIBRARIES=/opt/install/rtlsdr/lib/librtlsdr.so`
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There is no installation procedure the executable is at the root of the build directory
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============
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For Debian 8
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============
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Debian 7 "wheezy" uses Qt4. Qt5 is available from the "wheezy-backports" repo, but this will remove Qt4. Debian 8 "jessie" uses Qt5.
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`sudo apt-get install cmake g++ pkg-config libfftw3-dev libusb-1.0-0-dev libusb-dev qt5-default qtbase5-dev qtchooser libqt5multimedia5-plugins qtmultimedia5-dev qttools5-dev qttools5-dev-tools libqt5opengl5-dev qtbase5-dev librtlsdr-dev`
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`mkdir build && cd build && cmake ../ && make`
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The same remarks as for Ubuntu apply...
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============
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Known Issues
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============
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- Actually NFM seems to be working pretty well
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- WFM does not work for broadcast
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- NFM audio seems wrong (too slow) for RTL-SDR rates other than 1536 kHz. Maybe in SSB too.
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- RTL frontend will have bad aliasing in noisy environments. Considering the size of the hardware there is no place for proper filters. With good filtering and a good antenna up front these devices work remarkably well for the price!
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===================
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Done since the fork
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===================
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- Added ppm correction for the LO of RTL-SDR. This uses the corresponding function in the librtlsdr interface (range -99..99 ppm)
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- Added a preset update button (the diskette with the yellow corner) to be able to save the current settings on an existing preset
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- Added variable decimation in log2 increments from 2^0=1 to 2^4=16 allowing to see the full 2048 kHz of spectrum if so you wish
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- Better handling of rtlsdr GUI display when settings change (initial load, load of presets)
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- Added display and precise control of the shift frequency from center frequency of the NFM receivers.
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- Removed useless spectrum visualizer in NFM receivers. Created a null sink class to fit corresponding parameter in NFMDemod class constructor.
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- Added display and precise control of the shift frequency from center frequency of the SSB receivers.
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- Make the sidebands appear correctly on SSB channel overlay. Limit to +/- 6 kHz to fit channel spectrum analyzer window
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- SSB bandwidth can now be tuned in steps of 100 Hz
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=====
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To Do
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=====
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- AM demod. What about the air band?!
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- Add the possibility to change the brightness and/or color of the grid. Sometimes it is barely visible yet useful
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- Possibility to completely undock the receiver in a separate window. Useful when there are many receivers
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- Larger decimation capability for narrowband and very narrowband work (32, 64, ...)
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- Even more demods ...
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- Triggering capability like on expensive spectrum analyzers to trap burst signals
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- recording capability
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