//-\ ]E i n d e x

notes on projects by m.d.
categories: arctic | cryptoart | radio | internet | art | crypto | debian | laser | physics | game | radioactive entropy | funk | ghostradio | hades | informationtheory | linux | linuxaudio | math | neuralnetworks noise | nonhuman | notes |particlephysics | rng |softwaredefinedradio | tools | underinfluence | vlf movie | book
search:



aircraft_radar_application:

https://github.com/antirez/dump1090 linux funk radio




antenna_for_athmospheric_vlf_arctic:

http://www.physics.otago.ac.nz/space/AARDDVARK_pictures.htm   http://www.physics.otago.ac.nz/space/AARDDVARK_homepage.htm radio vlf




code_von_franzi:

code von franzi imagemagick #!/usr/bin/perl use Image::Magick; $zaehler = 2; $spalte = 0; $zeile = 0; $e = 1; for ($i = 0; $i <= 255; $i++) { my $image = Image::Magick->new; $image->Set(size=>'256x256'); $image->ReadImage('xc:white'); for ($sp = 0; $sp <= 256*256; $sp++) { if ($spalte == 256) { $spalte = 0; # AN DEN ANFANG ZURUECK $zeile = $zeile + 1; # EINE ZEILE RUNTER # print " Zeile $zeile / 256 \t Nr. $i / 255 \t $farbe \n"; } # $e1=1/$e; # $e=1/(1+$e1); $e=1/$zaehler; # print "$e\t1/$zaehler\n"; $rot=substr($e,8,2); $gruen=substr($e,10,2); $blau=substr($e,12,2); $farbe = "#".$rot.$gruen.$blau; $image->Draw(primitive=>'point', fill=>"$farbe", points=>"$zeile,$spalte"); $spalte = $spalte + 1; $zaehler = $zaehler + 1; # print ">>>$e>$rot--$gruen--$blau>$farbe>>$spalte,$zeile\n"; } $zeile = 0; #$image->display(); $image->Write("image_1n65k$i.jpg"); print "image_65k$i.jpg\n"; } ghostradio linux




dev_random:

Do you have a radio? Tune it in between stations. Music is highly reproducible, and although DJ's may blabber at random they may be recorded (so reproducible) and any radio station in general is duplicated with care in the whole area of broadcast. Do not use the FM tuner of your radio, because FM is based on a beacon signal with the sounds wrapped around it -- in other words, the radio can recognise absence of a station and refuse to tune in, or adapt tuning to a nearby station. You want to use the AM tuner, which does not have these problems.
www.cypherpunks.to/~peter/06_random.pdf
http://www.linuxfromscratch.org/hints/downloads/files/entropy.txt

the best random number generators use radioactive decay as an entropy source

gpg definition: http://tools.ietf.org/html/rfc4880 das ist schon mal ein guter weg http://sublimated.wordpress.com/2007/08/28/not-enough-random-bytes-available/ /dev/random wird verwendet maex@bro:~$ cat /dev/random )����i���1����9�Ѭ$SLu�8y�;��_�M�>��D�HUb�1�\224bQ�?����\224���A|�?d������\206��\214�a�����.� +��Dc��@ l���o�g� ��\220�@�����,�I@���n�(b#�m���W��T M_��ԧ�'�tW�~    k��+9'�'?�so��.���\223���L��_U{-������^�v��KlR-��q��\212������^C maex@bro:~$ entropy noise rng




ghostradio_antenna_layout:

[image] new antenna developed 11 2014 lambda1/4 antenna in the center (probably with black cable) ghostradio entropy cryptoart




ghostradio_python_script:

maex@:~/ghostradio/code$ more ghostradio.py 
import numpy as np
import cv2
import os, sys, struct, shutil, time



print "configuring video dev"
# 1 = composite 0 = tuner usw
os.system("v4l2-ctl -i 1")


cap = cv2.VideoCapture(0)

#resolution
ret = cap.set(3,720) 
ret = cap.set(4,576)



timestr = time.strftime("%Y%m%d-%H%M%S")

grname = "gr-random-bin"+timestr


fd = os.open(grname,os.O_RDWR|os.O_CREAT)


while(True):
    # Capture frame-by-frame
    ret, frame = cap.read()

    # Our operations on the frame come here
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

   
    for x in xrange(1, 12):  # zeilen anzahl und position 1 = start 2 =laenge (bei 640x480 ist das theoretisch 1, 479)
        for y in xrange(1, 18):  # scanrange 1 start 2 ende (zb fuer 640x480 ist das dann 1, 640)


                output = gray[x, y]
#               output = bin(gray[x ,y])[2:].zfill(8)
#               print bin(gray[x ,y])[2:].zfill(8)
                output = chr(output)
                os.write(fd, output)  

#               change to this to write down numbers:
#               output = str(output)
#               os.write(fd, output+';')


    # Display the resulting frame
    cv2.imshow('frame',gray)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

    #checking filesize > 2gb close file open new filename+timestamp    
    statinfo = os.stat(grname)
    b = statinfo.st_size
    b = ((b /1024)/1024)

    if b > 2000:
        os.close(fd)
        shutil.move('gr-random-bin'+timestr,'random')
        timestr = time.strftime("%Y%m%d-%H%M%S")
        grname = "gr-random-bin"+timestr
        fd = os.open("gr-random-bin"+timestr,os.O_RDWR|os.O_CREAT)

# When everything done, release the capture
os.close(fd)
cap.release()
cv2.destroyAllWindows()
maex@:~/ghostradio/code$
ghostradio linux entropy cryptoart




gr_comment:

"Ghostradio sounded suitably mysterious and dark" regine debatty ghostradio cryptoart




graphics_magic:

  als lib fuer quantenkino/ghostradio -> laut oliver laeuft die lib effizienter als imagemagick http://www.graphicsmagick.org/perl.html   linux tools




hardware:

[image] http://www.andregoncalves.info/ag_blog/?page_id=61 http://www.cooking-hacks.com/index.php/shop/arduino/pack-radiation-sensor-board-for-arduino-geiger-tube.html http://www.ebay.com/itm/1x-Russian-GEIGER-TUBE-COUNTER-SI-29BG-SBM-20-New-Box-/190723522117?pt=BI_Security_Fire_Protection&hash=item2c6801fe45 http://arduino.cc/en/Main/ArduinoBoardUno - - nur memo: http://www.libelium.com/wireless_sensor_networks_to_control_radiation_levels_geiger_counters/ - http://www.techlib.com/science/geiger.html vlf: http://www.techlib.com/electronics/vlfwhistle.htm http://www.vlf.it/easyloop/_easyloop.htm http://www.techlib.com/electronics/audioamps.html#curiously%20low%20noise http://nova.stanford.edu/~vlf/IHY_Test/TechDocs/AWESOMEDescriptionTalk/HardwareAWESOME.pdf physics tools radioactive vlf radio




invertierter_transistor_case_pyhaeoki:

memo: den letzten transistor im setup 180grad herum einbauen, ergibt einen schoenen sound. tools radioactive




minimal_gc_for_rng:

by erich berger [image] radioactive tools




neue_links_zur_psi_forschung:

http://vimeo.com/49872335 http://wwwu.uni-klu.ac.at/gsuess/bewusstseinpsy/RonaldWeigl.htm http://derstandard.at/1326504254251/Umfrage-Zufaelle-sind-nicht-immer-rein-zufaellig?_artikelIndex=4 http://derstandard.at/1326504250904/Zufall-Wenn-der-Wuerfel-rollt ghostradio




og:

http://www.opengeiger.de/

https://hblok.net/blog/posts/2011/04/29/analysing-apache-logs-gnuplot-and-awk/

tools radioactive




pentagram_test:

some pics klick [image] [image] [image] [image] ghostradio




sdr:

http://gnuradio.org/redmine/projects/gnuradio/wiki/InstallingGR http://sdr.osmocom.org/trac/wiki/rtl-sdr http://www.rtlsdr.org/ http://www.oz9aec.net/index.php/gnu-radio/gqrx-sdr http://www.superkuh.com/rtlsdr.html ----bugs/hacks http://mono-for-android.1047100.n5.nabble.com/Some-sln-files-opening-as-hex-td5688360.html   --satelite images http://www.oz9aec.net/index.php/gnu-radio/gnu-radio-blog/451-howto-receive-and-decode-noaa-apt-images-with-funcube-dongle-and-gqrx   --radar http://www.virtualradarserver.co.uk/Download.aspx http://www.rtl-sdr.com/adsb-aircraft-radar-with-rtl-sdr/ softwaredefinedradio funk




vlf:

Ferritantenne fuer Sfericsempfang LFM/S1-N


http://www.spezialantennen.eu/assets/plugindata/poola/radiouser-engl.pdf

http://www.spezialantennen.eu/ferritantennen/ferritantennen-n/ferritantennesferics.php

best vlf connector so far,..

vlf radio




web_sdr:

http://websdr.ewi.utwente.nl:8901/   8422.00   9240.02 softwaredefinedradio