Här får ni okunniga och kunniga följa mig i scriptet. Uppdaterat Tisdag!

Jag kommenterar med fet stil varje instruktion:
Tecknet # finns alltid före en kommentar av konstruktören.

#Install dependencies
sudo apt-get install build-essential git libfftw3-dev cmake libusb-1.0-0-dev nmap
Här får jag info att build-essential är den senaste versionen på datorn.
Samt att cmake är också den nyaste versionen.
git är den senaste
libfftw3-dev är den senaste
nmap är den senaste
Va kul… jag har här ovan lärt mig att man installera olika saker genom att särskilja med mellanslag.
Innan jag ger nästa instruktion så kommer en text där Ubunru meddelar mig att inget nytt tillkommit… Allkt var redan installerat. Och det stämmer.. det här är 100-drade gången jag installerar samma sak och först nu begriper lite till..

#nmap itself is not used by OpenWebRX at all, but we need to install it because the ncat tool is packaged with it.
#ncat is a netcat alternative which is used by OpenWebRX for internally distributing I/Q data,
# and also solves the incompatibility problems among netcat versions.

#Fetch and build rtl-sdr, skip if already done (subdirectories will be created under the current directory).
git clone git://git.osmocom.org/rtl-sdr.git
Här säger Ubunru att rtl-sdr finns redan och är ingen tom katalog.
cd rtl-sdr/
Change directory går bra
mkdir build
I rtl-sdr så change directory igen till build, där vi nu är.
Går bra det här!
cd build
Ni börjatr kunna detta nu? Vi går nu till mappen build.
cmake ../ -DINSTALL_UDEV_RULES=ON
Va betyder denna instruktion? cmake
Vi får se…
Jo den gick också bra… en massa text men kontentan var att Build files har blivit skriven till /home/folke/rtl-sdr/build.
Vi är fortfarande kvar i mappen /build
make

Får Built target rtl_shared
Built target convenience static
Built target rtl_sdr
Built target rtlsdr_static
Built target rtl_power
Built target rtl_tcp
Built target rtl-fm
Built target rtl_test
Built target rtl_adsb
Built target rtl_eeprom

sudo make install
Fick ange lösenord för sudo!
Massa filer som kollades och allt var uppdaterat
sudo ldconfig
Allt ok eftersom inga error kom upp… enbart promten
cd ../..
Tillbaka till rotpromten!

#Disable the DVB-T driver, which would prevent the rtl_sdr tool from accessing the stick
#(if you want to use it for DVB-T reception later, you should undo this change):
sudo bash -c ’echo -e ”\n# for RTL-SDR:\nblacklist dvb_usb_rtl28xxu\n” >> /etc/modprobe.d/blacklist.conf’
Funkade bra
sudo rmmod dvb_usb_rtl28xxu # disable that kernel module for the current session
Här fick jag första error.
rmmod: ERROR: Module dvb_usb_rtl28xxu is not currently loaded
Jag skickar nu ett mail till Andras med en förfrågan om detta error.
Här en kopia på min fråga och hans svar:
*****************************************
No problem. Try to run OpenWebRX with the RTL stick plugged in, and if it works, you’re all right. If it doesn’t, let me know.

#Download OpenWebRX and libcsdr (subdirectories will be created under the current directory).
git clone https://github.com/simonyiszk/openwebrx.git
Openwebrx finns redan och är ingen tom katalog.
git clone https://github.com/simonyiszk/csdr.git
csdr finns redan och är inte tom

#Compile libcsdr (which is a dependency of OpenWebRX)
cd csdr
Ändrar till csdr-katalogen
make

Håll i dig nu!
”make” orsakade nedanstående!
Ojjjjj
rm -f dumpvect*.vect
NOTE: you may have to manually edit Makefile to optimize for your CPU (especially if you compile on ARM, please edit PARAMS_NEON).
Auto-detected optimization parameters: -msse -msse2 -msse3 -msse4.1 -msse4.2 -msse4 -mfpmath=sse

sudo make install

folke@Ubuntu-Aspire-X3-710:~/csdr$ sudo make install
[sudo] password for folke:
install -m 0755 libcsdr.so /usr/lib
install -m 0755 csdr /usr/bin
install -m 0755 csdr-fm /usr/bin
ldconfig
folke@Ubuntu-Aspire-X3-710:~/csdr$

#Edit OpenWebRX config or leave defaults
nano ../openwebrx/config_webrx.py

Här under är configfilen.
Jag har i den lagt in fet stil på vad jag configurert den med för info och data.
Därefter sparas den för användning av servern på OpenWebRx på nätet.

-*- coding: utf-8 -*-

”””
config_webrx: configuration options for OpenWebRX

This file is part of OpenWebRX,
^ an open-source SDR receiver software with a web UI.
Copyright (c) 2013-2015 by Andras Retzler

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
^
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see .

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

In addition, as a special exception, the copyright holders
state that config_rtl.py and config_webrx.py are not part of the
Corresponding Source defined in GNU AGPL version 3 section 1.

(It means that you do not have to redistribute config_rtl.py and
config_webrx.py if you make any changes to these two configuration files,
and use them for running your web service with OpenWebRX.)
”””

# NOTE: you can find additional information about configuring OpenWebRX in the Wiki:
# https://github.com/simonyiszk/openwebrx/wiki

# ==== Server settings ====
web_port=8073
server_hostname=”localhost” # If this contains an incorrect value, the web UI may freeze on load (it can’t open websocket)
max_clients=20

# ==== Web GUI configuration ====
receiver_name=”[Callsign]”
receiver_location=”Budapest, Hungary”
receiver_qra=”JN97ML”
receiver_asl=200
receiver_ant=”Longwire”
receiver_device=”RTL-SDR”
receiver_admin=”example@example.com”

receiver_gps=(47.000000,19.000000)
photo_height=350
photo_title=”Panorama of Budapest from Schönherz Zoltán Dormitory”
photo_desc=”””
You can add your own background photo and receiver information.
Receiver is operated by: %[RX_ADMIN]
Device: %[RX_DEVICE]
Antenna: %[RX_ANT]
Website: http://localhost
”””

# ==== sdr.hu listing ====
# If you want your ham receiver to be listed publicly on sdr.hu, then take the following steps:
# 1. Register at: http://sdr.hu/register
# 2. You will get an unique key by email. Copy it and paste here:
sdrhu_key = ””
# 3. Set this setting to True to enable listing:
sdrhu_public_listing = False

# ==== DSP/RX settings ====
dsp_plugin=”csdr”
fft_fps=9
fft_size=4096
fft_voverlap_factor=0.3 #If it is above 0, multiple FFTs will be used for creating a line on the diagram.
samp_rate = 250000
rf_gain = 5 #in dB. For an RTL-SDR, rf_gain=0 will set the tuner to auto gain mode, else it will be in manual gain mode.
ppm = 0

audio_compression=”adpcm” #valid values: ”adpcm”, ”none”
fft_compression=”adpcm” #valid values: ”adpcm”, ”none”

start_rtl_thread=True

# ==== I/Q sources ====
# (Uncomment the appropriate by removing # characters at the beginning of the corresponding lines.)

# There are guides for setting may different SDR hardware including AirSpy, AFEDRI-SDR, RTL-SDR in direct sampling mode, etc. in the Wiki:
# https://github.com/simonyiszk/openwebrx/wiki

# You can use other SDR hardware as well, by giving your own command that outputs the I/Q samples… Some examples of configuration are available here (default is RTL-SDR):

# >> RTL-SDR via rtl_sdr

start_rtl_command=”rtl_sdr -s {samp_rate} -f {center_freq} -p {ppm} -g {rf_gain} -”.format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate, ppm=ppm)
format_conversion=”csdr convert_u8_f”

#start_rtl_command=”hackrf_transfer -s {samp_rate} -f {center_freq} -g {rf_gain} -l16 -a0 -q -r-”.format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate, ppm=ppm)
#format_conversion=”csdr convert_s8_f”
”””
To use a HackRF, compile the HackRF host tools from its ”stdout” branch:
git clone https://github.com/mossmann/hackrf/
cd hackrf
git fetch
git checkout origin/stdout
cd host
mkdir build
cd build
cmake .. -DINSTALL_UDEV_RULES=ON
make
sudo make install
”””

# >> Sound card SDR (needs ALSA)
# I did not have the chance to properly test it.
#samp_rate = 96000
#start_rtl_command=”arecord -f S16_LE -r {samp_rate} -c2 -”.format(samp_rate=samp_rate)
#format_conversion=”csdr convert_s16_f | csdr gain_ff 30″

# >> /dev/urandom test signal source
#samp_rate = 2400000
#start_rtl_command=”cat /dev/urandom | (pv -qL `python -c ’print int({samp_rate} * 2.2)’` 2>&1)”.format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate)
#format_conversion=”csdr convert_u8_f”

# >> Pre-recorded raw I/Q file as signal source

#Run OpenWebRX
cd ../openwebrx
./openwebrx.py