GEOUNIVERSAL

one scientist's noise is another scientist's data











RADIOS IN SPACE











PROJECTS


tetsuo kogawa's simplest microtranmitter
can sometimes get crystal clear reception,
mostly cackles in and out with a lot of screeching.
hitting the coil fix/breaks and reception problems.
to try: etch to circuit board, just to learn, needs real antenna.
--upload image of schematic, update hyperlink above


SDR
software defined radio
takes advantage of computers and uses software
to do the tasks usually done by hardware.
(which are expensive or hard to build)
an antenna is connected to a device that
converts the analog rf signal into a digital signal, where the computer takes over

RTL-SDR
rtl-sdr.com
a cheap DVB-T USB dongle
(digital video broadcasting - terrestrial)
meant to carry TV signals turns out to be usable
as a general purpose SDR device

--intentions
get my antenna on my roof?
listening to the radio using SDR# or other programs
listening to the radio using command prompts
lurk the radio waves without knowing what is what
noaa satellites(WXtoImg)
eventually lightsail? hopefully i figure this out before it finally launches

raspberry pi
intro - what is it? what are its limitations?
connecting to pi remotely (without any os on it)
using pi as media server, plug ex hd and serve, with and without os?
different os for pi
gpio intro
linux intro











RESOURCES











-------------------general electronics-------------------

a usb and solar battery charging circuit
http://www.trevorshp.com/creations/solarcharger.htm
http://www.talkingelectronics.com/projects/200TrCcts/200TrCcts.html#86A
http://teachers.usd497.org/agleue/Gratzel_solar_cell%20assets/Basics%20of%20a%20Photovoltaic%20%20Solar%20Cell.htm

an amp for small stereo speaker output with headphones override
http://www.electronics-lab.com/blog/wp-content/uploads/2013/05/stereo-amplifier-circuit-diagram-1024x807.png
http://makezine.com/projects/make-34/monobox-powered-speaker-2/
http://www.instructables.com/id/Pocket-Stereo-Amplifier/?ALLSTEPS

.:. hacking tube tvs, transmitters,diy oscilloscope?
http://crackedraytube.com/textstutorials.html
http://www.trevorshp.com/creations/wavevessel.htm

circuit library
http://www.bowdenshobbycircuits.info/page8.htm

electronics forum
http://www.electronicspoint.com/

misc
http://www.physicsclassroom.com/class/circuits/Lesson-3/Ohm-s-Law
https://en.wikibooks.org/wiki/Practical_Electronics/PCB_Layout/Trace_Current_Capacity"
http://expertcircuits.blogspot.ca/2015/01/led-as-light-sensor.html
.:.http://expertcircuits.blogspot.ca/2015/01/solar-panel-based-charger-and-small-led.html
.:.making a windbelt
http://www.instructables.com/id/Windbelt-from-hard-drive-voice-coil-and-magnets/?ALLSTEPS

-------------------radio electronics-------------------

a few different radio receivers (sound to come out of an amp)
http://www.somerset.net/arm/fm_only_lowtech.html
http://www.somerset.net/arm/reprints/radio_shack_special/rss.html
am ?
sw ?
7mhz transmitter using dremel cut copper boards
http://www.angelfire.com/de/RadioAnarchy/

hf 3-30mhz
http://www.phonestack.com/farhan/minima.html

27mhz transmitter/reciver using 555 timers
http://hackaday.com/2012/10/18/27-mhz-transmitterreceiver-pair-made-with-555-timers/

27mhz
http://www.talkingelectronics.com/projects/27MHz%20Transmitters/27MHzLinks-1.html

technical info on running a diy broadcast station - written by pirates
http://radio.xtreamlab.net/tech.html

simple shortwave transmitter and general good radio blog
http://makerf.com/posts/mighty_simple_shortwave_transmitter
homepage of same guy
http://www.mike-gualtieri.com/

.:.tetsuo kogawa radio art - mini fm and uhf tv transmitters in not-too-technical lingo, pro radio anarchy
http://www.translocal.jp/radio/micro/howtotx.html
radio art manifesto
http://anarchy.translocal.jp/radioart/20080710AcousticSpaceIssue_7.html

.:.low tech fm reciever circuits and theory
http://www.somerset.net/arm/fm_only_lowtech.html

like this one a lot, old school transistor radio project using wood and screws
http://www.mds975.co.uk/Content/george_dobbs_trf_radio.html

broadcast documentation and pirate message board
http://www.hfunderground.com/wiki/Main_Page

free radio tech manuals and basics
https://www.scribd.com/freeradio

.:.:.:.indian radio ham provides lots of tech basics for beginners
http://www.qsl.net/vu2msy/
http://www.qsl.net/vu2msy/homebrew/homebrewing_zone.htm

austrailian radio ham electronics basics and projects
http://my.integritynet.com.au/purdic/index.html#index

radio pirate radio theory and theories
http://web.archive.org/web/20080404052930/http://members.tripod.com/~amn92/index_main.htm

digital rf circuits
http://jap.hu/electronic/rf.html
http://www.instructables.com/id/Build-a-computer-controlled-radio-transmitter/?ALLSTEPS

http://www.electronics-radio.com/index.php
http://www.discovercircuits.com/R/rec-circuits.htm
http://www.talkingelectronics.com/projects/200TrCcts/200TrCcts.html
http://letsmakerobots.com/node/18933 "lmr-spirit-detector" http://electronics-lab.com/projects/rf/index.html
http://earthground.8m.com/tuning%20capacitor.htm
http://makearadio.com/crystal/19.php

-------------------antenna-------------------

antenna tuner
http://www.zen22142.zen.co.uk/Circuits/rf/atu.htm
hard core dx - antenna info www.buxcomm.com/antennas.htm

-------------------radio astronomy-------------------

http://www.fringes.org/
http://www.radiosky.com/

radio jove
http://radiojove.gsfc.nasa.gov/telescope/rcvr_manual.pdf
http://radiojove.gsfc.nasa.gov/telescope/equipment_manuals.htm

wikiversity astronomy coursehttps://en.wikiversity.org/wiki/Principles_of_radiation_astronomy

slide show about radio astronomy interferometry
http://www.slideshare.net/CosmoAIMS/spit-duct-tape-baling-wire-oral-tradition-dealing-with-radio-data

beginner radio telescope with schematics and diagrams
http://my.integritynet.com.au/purdic/radio-telescope.htm
http://www.radio-assa.org.au/book/export/html/14

amateur radio astronomy
http://www.ukaranet.org.uk/

space weather prediction center
good descriptions of space weather phenomena
http://www.swpc.noaa.gov/phenomena/solar-wind

-------------------earths magnetosphere-------------------

lesson on magnetism and physics
http://www.animatedscience.co.uk/ks5_physics/general/Electricity%20&%20Magnetism/Magnetic%20Fields.htm

mms mission educationhttp://mms.gsfc.nasa.gov/epo_lessons.html

library of nasa lessonshttp://nasawavelength.org/resource-search?educationalLevel=&n=100&qq=Magnetism

earth's magnetosphere information
http://www.phy6.org/Education/Intro.html

-------------------sdr and lightsail-------------------

SDR
www.planetary.org/ how to download satellite data
mono-project
rtlsdr.org-history
rtlsdr.org-software
downloading noaa sdr data
.:.:.:.rtl sdr NOAA satellite imagery
manual for rtlsdr

lightsail



sail.planetary.org


the lightsail is an experiment to see if
solar wind will push a sail

lightsail 1 went into orbit and succeeded,
mostly,
in deploying the sail, but was within
earth's magnetic field and protected
from any solar winds
(get a date and such)

lightsail 2 will leave the shores of earth,
and when the sail opens we'll find out
if we've unlocked a new era
(i think it's going up this year?)

while orbiting earth the lightsail will be
transmitting telemetry data.
the planetary society could use help
listening to these signals
see
www.planetary.org/ how to download satellite data
and my SDR section in the projects list above

-------------------raspberry pi and linux-------------------

GPIO 101 stuff
turn an LED on and off the pi hut
GPIO tutorials - toptechboy

linux
linux shell primer
how to remote desktop raspberry pi
deluged torrent client for raspbian