Satelliteless
From Bricowiki
msst
"Computer Science is no more about computers than astronomy is about telescopes. E. W. Dijkstra"
Hardware from scratch, Live coding, Biofeedback, reclaiming the streets, history of free software culture in a performance...
Singing open source code: dmesg > /dev/dsp && my shell had spit a byte chunk of a song...
Artisans of bits and volts, humanist poets, nomadic scientists - where are we going? I trust in the pulse of your steps, our revolution is the next second, and the constant challenge is not to surrender to the conformity of being entertained or entertaining: distracting the fact that we want to live beyond history, walls, banks, genetic similarity. We want an ecosystem that is worth of all this Prometheic pyrotechinic - this being, which is supposed to be Sapiens. Some intelligent symbiosis to keep this flame heating an harmonic environment.
But, if today we still looking at some of us marching for a piece of land to survive or alienating their most creative instincts in a desperate search for exist inside a culture of self-destructive consumption, we have to ask: What's the role of those sheltered and fed in thinking about an autonomy in knowledge and information transmition for those efforts that wants revert this pulsion of humanity self-destructive greed?
The conjecture of this manifesto is inside a function pointing to a cracking sparkle at the horizon: The day we will be able to build our first handmade satellite and send it to this sidereal space wich is already full of corporative and governamental devices. Will our satellite be able to transform our networks in something more autonomous? Or we have to re-think all technocracy to reach that by a tottaly different path? How?
We're more than technocracy guinea pigs!
Dreaming and dancing: the march of the Satelitteless..
)))
abraços glerm
Translating Rafael Diniz's e-mail into english:
On the possibility os a global communication system with no corporations or state control, free.
This is a proposal for a free communication network, without the use of proprietary infrastructure from either capitalist corporations or the state. It consists of 1) broadcast (free radio and free tv); 2) point to point access terminals (free GSM mobile network); and 3) IP network (free internet); it is an heterogeneous infrastructure that in a dynamic way configures itself in a global network of free communication.
Follows the description of a possible interconnection architecture for the communication system, considering that the division by frequencies is rather "raw", as the suggested forms of modulation are only examples:
For long distance communication networks:
In short wave (3Mhz - 30Mhz), using analogic modulation (fonia) and digital (from CW to OFDM, etc.) to broadcast data between far territories, as different continents, respecting the conditions for signal propagation (that in some moments could not exist) that want to establish communication.
For medium distances:
In short-, medium- (300khz-3Mhz) and long-wave (30khz-300khz) lenghts, using analogic (fonia) and digital (CW... OFDM) modulation to broadcast data between cities and countries in the same region.
For short distances:
In VHF (30Mhz-300Mhz), UHF (300MHz-3GHz) and SHF (3GHz-30GHz), using mainly means of digital modulation that allow high transmission rates - like the systems WiMax (802.16) and Wi-Fi (802.11) - to broadcast data within a city or region.
About the network access points:
With these networks for connections, we can have the local emission points in broadcast, and they can have global communication, the access terminals (mobile phones) being interconnected using a routing that can or not establish communication (in the case of intercontinental calls, there are moments in which it is not possible to create the link with short waves - the call can fail) and the IP network, that will be a free internet, having as access terminals the devices equipped with WiFi and Wimax mainly.
Free radio and tv we already know.
Global communication in diverse frequency ranges is dominated since decades by the million amateur radio operators all over the world (BTW, amateur radio already does for more than 80 years the kind of point to point communication internet does today).
GSM networks (built with SDR [2] platforms - like USRP [3] + GNU Radio [4] - running Optrn BTS [5]) and IP networks (built with Wi-Fi and WiMax equipment) are possible with affordable transmission equipment and knowledge on radio waves propagation.
And this infrastructure, put together with horizontal, de-centralised and assymetrical ways of managing the network, leaves unnecessary the allocation of so large band of the eletromagnetic spectrum for corporations under state supervision.
[1] - Um exemplo de uma rede GSM usando a USRP e componentes eletrônicos de RF, demonstrada no encontro hacker Burning Man 2009: http://gnuradio.org/trac/wiki/OpenBTS/BM2009RF
[2] - - Radio Definido por Software: http://en.wikipedia.org/wiki/Software-defined_radio
[3] - Universal Software Radio Peripheral:
http://www.ettus.com/downloads/er_ds_usrp_v5b.pdf
[4] - Um Framework livre para SDR compatível com a USRP:
http://gnuradio.org/trac
[5] - Software livre que implementa o padrão GSM: http://gnuradio.org/trac/wiki/OpenBTS
