hallo
voor wie er wat aan heeft
ik heb het onderstaande gebruikt op de laatste ubuntu
dan word alles geïnstalleerd en ben je zo goed als klaar
lees ook even daar na onderaan de txt door hoe je alles moet opstarten
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Easy install script
27
28 The following script can be used to install everything automatically under Debian 8, Ubuntu 14 and 15, and Linux Mint 17.2 and 17.3. With minor modifications it should also work under Debian 6/7 and other debian-like distributions, if a supported gnuradio version is installed via some other way - either using pybombs or the SBRAC build-gnuradio script. To install verify that you have sudo configured for your user, and that you have internet access, and do this:
29
30 wget
https://raw.githubusercontent.com/sq5bpf/telive/master/scripts/install_telive.sh 31 # now here you should read the script, don't just blindly run scripts off the internet
32 chmod 755 install_telive.sh
33 ./install_telive.sh
onderstaande ook even lezen
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Receiver examples
The following are some receiver examples (ranging from the simplest to the more advanced). These are to illustrate various features of the gnuradio receiver/osmo-tetra-sq5bpf/telive combo.
Simple 1 channel setup example with UDP transport and no receiver control:
This is a simple receiver for one frequency only (it is best to use the control channel frequency, as it contains the most signaling information). On networks which use more channels per LA it will not record all calls, because they may be on other frequencies.
Fig 4. Simple one channel receiver
Open an xterm, change directory to the osmo-tetra-sq5bpf/src directory and execute
./receiver1udp 1
There should be no errors. This listens on UDP port 42001 , and listens for incoming data, piping it into simdemod2.py, and tetra-rx. The resulting data is sent via UDP packets to port 7379 to the telive process.
Open a 203x60 characters xterm with:
/usr/bin/xterm -font fixed -bg black -fg white -geometry 203x60
Change to the telive directory and execute:
./rxx
This launches the telive console. In the telive console pressing shift-R enables recording of voice calls, and pressing L enables logging.
In another xterm launch /tetra/bin/tetrad - this will recode voice in the ACELP format into OGG format, and put it into /tetra/out
Connect a rtl-sdr dongle and antenna. Open telive_1ch_simple_gr37_udp.grc (from the telive/gnuradio-companion/receiver_udp directory) in gnuradio-companion, and run it. Currently telive_1ch_simple_gr37_udp.grc defaults to 391MHz and frequency correction to 56ppm. Please adjust the frequency, and ppm to receive a known strong tetra signal (preferably unencrypted). Frequency values in gnuradio should be entered in Hz (without the unit), k M prefixes are allowed. So to enter 435.225 MHz please enter 435.225M (and press the Enter key), to enter -112.5kHz use -112.5k (and press Enter).
If necessary, correct the ppm value so that the spectrum looks "symmetrical". It is also possible to click on the spectrum display to tune the receiver. This can also be adjusted by observing the AFC value in the frequency window (set PPM so that it is close to 0).
If all is set up correctly, the xterm where receiver1udp is run should scroll a lot of text, while the telive console should display the MCC