[[Category:Ongoing_Projects]]
== Description ==
== Goal ==
* Install an SDR reception station at FIXME based on rtl-sdr, a DVB-T USB Stick and a Raspberry Pi.
== References ==
* http://sdr.osmocom.org/trac/wiki/rtl-sdr
* httphttps://wiki.gnuradio.org/redmineindex.php/projectsMain_Page* http:/gnuradio/spacenear.us/tracker/* https://en.wikipedia.org/wiki/ISM_band* http://www.jsansonnens.ch/freq.html* Table d'allocation en CH https://www.ofcomnet.ch/#/fatTable* https://wiki.debian.org/DebianHams
== HOWTO =Compatible Hardware ===* https://www.funk-technik.info/alles-%C3%BCber-rtl-sdr/welche-dvb-t-stick-funktionieren.html
=== RTL-SDR Calibration ===
* https://karelkeers.nl/karelkeers.nl/rtl-sdr-calibration-with-r820t2-chip/
=== Antenna Setup ===
* https://www.rtl-sdr.com/using-our-new-dipole-antenna-kit/
* https://www.qsl.net/kk4obi/
== SDR at FIXME ==
<s>
We currently have two '''rtl_tcp''' instances running at FIXME:
* sdr1.fixme.ch:1234 (62.220.135.211:1234) ([http://www.raspberrypi.org/ Raspberry PI], west window, MC's homemade VHF antenna)
* foo.fixme.ch:1234 (FIXME's internal server, north window, original UHF antenna)
</s>
=== Service ===
* The service is started with the following command is listen to the port 1234
sv start rtl-tcp
== SDR Softwares ==
=== SDR++===
* Simple and bloat free
* https://github.com/AlexandreRouma/SDRPlusPlus
=== Quisk ===
* http://james.ahlstrom.name/quisk/
===GNURadio===
* GNURadio [https://www.cgran.org/browser/projects/multimode/trunk multimode]
* Install on Debian 6
mkdir gnuradio; cd gnuradio
wget http://www.sbrac.org/files/build-gnuradio; chmod a+x ./build-gnuradio; ./build-gnuradio
* On Debian 7: apt-get install gnuradio (???)
*On arch linux, a working package is in aur so you only need
yaourt -S gnuradio
* Install and use Multimode
svn co https://www.cgran.org/svn/projects/multimode/trunk/ gnuradio-multimode
git clone git://git.osmocom.org/osmo-sdr.git
./multimode.py --devinfo=rtl_tcp=foo.fixme.ch:1234 --freq=98.5M --dmode=WFM --mthresh=-35 --vol=10
=== RTL-SDR ===
==== Debian Packages ====
<pre>apt intsall rtl-sdr</pre>
==== Sources ====
===== Requirement =====
<pre>
sudo apt-get install git libusb-1.0-0-dev cmake build-essential
</pre>
===== Build =====
<pre>
git clone git://git.osmocom.org/rtl-sdr.git
cd rtl-sdr/
mkdir build
cd build
cmake ../ -DDETACH_KERNEL_DRIVER=ON -DINSTALL_UDEV_RULES=ON
make
sudo make install
sudo ldconfig
cd ..
sudo cp rtl-sdr.rules /etc/udev/rules.d/
</pre>
==== Test the dongle ====
The test bellow is for a E4000 dongle.
<pre>
$ rtl_test -t
Found 1 device(s):
0: Terratec T Stick PLUS
Using device 0: Terratec T Stick PLUS
Found Elonics E4000 tuner
Supported gain values (14): -1.0 1.5 4.0 6.5 9.0 11.5 14.0 16.5 19.0 21.5 24.0 29.0 34.0 42.0
Benchmarking E4000 PLL...
[E4K] PLL not locked for 52000000 Hz!
[E4K] PLL not locked for 2225000000 Hz!
[E4K] PLL not locked for 1113000000 Hz!
[E4K] PLL not locked for 1251000000 Hz!
E4K range: 53 to 2224 MHz
E4K L-band gap: 1113 to 1251 MHz
</pre>
or for other dongle
<pre>
$ rtl_test
Found 1 device(s):
0: NOXON, DAB Stick, SN: 0
Using device 0: Terratec Fraunhofer DAB Stick
Found Fitipower FC0013 tuner
Supported gain values (23): -9.9 -7.3 -6.5 -6.3 -6.0 -5.8 -5.4 5.8 6.1 6.3 6.5 6.7 6.8 7.0 7.1 17.9 18.1 18.2 18.4 18.6 18.8 19.1 19.7
Sampling at 2048000 S/s.
Info: This tool will continuously read from the device, and report if
samples get lost. If you observe no further output, everything is fine.
Reading samples in async mode...
</pre>
==== Use rtl_tcp ====
To start rtl_tcp on every ethernet interfaces and the port 1234:
<pre>
pi@sdr1 ~ $ rtl_tcp -a 0.0.0.0p 1234
Found 1 device(s).
Found Fitipower FC0013 tuner
to receive samples in GRC and control rtl_tcp parameters (frequency, gain, ...).
</pre>
=== Calibration ===
Pour utiliser la grande partie des logiciel SDR il faut faire une calibration
==== Requirement ====
<pre>
sudo apt-get install libtool autoconf automake libfftw3-dev
</pre>
==== Installation ====
<pre>
git clone https://github.com/steve-m/kalibrate-rtl.git
cd kalibrate-rtl/
./bootstrap
./configure
make
sudo make install
</pre>
You may need to run this if you encounter some reference errors on Raspberry Pi:
<pre>
export PKG_CONFIG_PATH='/usr/lib/arm-linux-gnueabihf/pkgconfig/'
</pre>
==== Usage ====
On utilise les fréquences du GSM-900
<pre>
# kal -e 22 -s 900
Found 1 device(s):
0: Generic RTL2832U OEM
Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Exact sample rate is: 270833.002142 Hz
kal: Scanning for GSM-900 base stations.
GSM-900:
chan: 9 (936.8MHz + 22.294kHz) power: 52744.70
chan: 11 (937.2MHz + 22.198kHz) power: 148897.40
chan: 48 (944.6MHz + 21.298kHz) power: 64839.80
chan: 50 (945.0MHz + 21.360kHz) power: 76421.47
chan: 66 (948.2MHz + 21.020kHz) power: 100342.53
chan: 68 (948.6MHz + 21.109kHz) power: 148650.05
chan: 74 (949.8MHz + 21.369kHz) power: 57399.97
# kal -e 22 -c 80 -v
Found 1 device(s):
0: Generic RTL2832U OEM
Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Exact sample rate is: 270833.002142 Hz
kal: Calculating clock frequency offset.
</pre>
=== SDR# ===
* The project has been closed sourced !
* <s>Replace $ARCH by i386 or x86_64
<pre>
ARCH='x86_64'
sudo apt-get install mono-complete monodevelop
sudo apt-get install libportaudio2
sudo apt-get install subversion
svn co https://subversion.assembla.com/svn/sdrsharp/trunk sdrsharp
cd sdrsharp
xbuild /t:Rebuild /p:Configuration=Release SDRSharp.sln /p:Platform=x86
cd Release
sudo ln -s /usr/local/lib/librtlsdr.so librtlsdr.dll
sudo ln -s /usr/lib/$ARCH-linux-gnu/libportaudio.so.2 libportaudio.so
mono SDRSharp.exe
</pre>
To prevent the error below, just modify the file release/SDRSharp.exe.config
and comment the line as follow:
<pre>
<!-- <add key="SDR-IQ" value="SDRSharp.SDRIQ.SdrIqIO,SDRSharp.SDRIQ" /> -->^M
</pre>
[[file:sdsharp_error.jpg]]
[[file:sdsharp.jpg||500px]]
</s>
==== References ====
* http://www.rtlsdr.org/softwarelinux
=== Multimon-NG ===
==== Requirement ====
<pre>
sudo apt-get install libqt4-dev libpulse-dev
</pre>
==== Build ====
<pre>
git clone https://github.com/EliasOenal/multimonNG.git
cd multimonNG
mkdir build
cd build
qmake ../multimon-ng.pro
make
sudo make install
</pre>
On arch linux, you have the choice between a "stable" version named multimon:
<pre>
yaourt -S multimon
</pre>
and The dev version:
<pre>
yaourt -S multimon-ng-git
</pre>
=== ACARS ===
Aircraft Communication Addressing and Reporting System [http://fr.wikipedia.org/wiki/Aircraft_Communication_Addressing_and_Reporting_System]
==== Requirement ====
<pre>
sudo apt-get install libsndfile1-dev libasound2-dev
</pre>
==== Installation ====
#Download software ACARS decoder from [https://github.com/TLeconte/acarsdec]
<pre>
git clone https://github.com/TLeconte/acarsdec.git
cd acarsdec/
</pre>
Modifier l'entête du fichier Makefile
<pre>
# See README for compiler options
#CFLAGS= -Ofast -pthread -D WITH_RTL -D WITH_ALSA -D WITH_SNDFILE
#LDLIBS= -lm -pthread -lrtlsdr -lasound -lsndfile
# Airspy conf
# CFLAGS= -Ofast -pthread -D WITH_AIR -I. `pkg-config --cflags libairspy`
# LDLIBS= -lm -pthread `pkg-config --libs libairspy` -lusb-1.0
# RTL only conf
CFLAGS= -Ofast -pthread -D WITH_RTL -I.
LDLIBS= -lm -pthread -lrtlsdr
</pre>
Lancer la command make
==== Usage ====
<pre>
vi run-acars
# add line :
./acarsdec -o 2 -l message-acars.txt -r 0 131.525 131.550 131.725 131.825 &
chmod u+rwx run-acars
./run-acars
tail -f message-acars.txt
</pre>
=== Gqrx ===
==== Installation (Linux) ====
* Debian:
apt-get install gqrx-sdr
==== Installation (Mac) ====
# Download software from [http://gqrx.dk/download here]
# Open .dmg file, you can run the app directly from the image, or copy it into Applications folder
==== Usage ====
# Select RTL-SDR Spectrum server
# Use device string <pre>rtl_tcp=sdr1.fixme.ch:1234</pre>
# Choose your other settings (default works fine), click Ok
# Click on Power button to start listening
# Move around spectrum by clicking on it, or by clicking/right clicking on the frequency numbers
== Participants ==
* [[User:Mc]]
* [[User:Francois]]
* [[User:Rorist]]
* [[User:Maurice809]]
* [[User:Masoud]]