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![]() | A fact from A Message from Earth appeared on Wikipedia's Main Page in the Did you know column on 11 November 2008, and was viewed approximately 7,700 times (disclaimer) (check views). The text of the entry was as follows:
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Given that the strength of transmissions even from powerful defence radars falls below the strength of the inter-stellar background within a light year of leaving the solar system, what strength will the transmission be by the time it reaches Gliese? I can't just use the inverse square rule as it is a focused beam —Preceding unsigned comment added by 81.101.252.188 (talk) 11:24, 24 April 2009 (UTC)
It is focused, but sure not 100% coherent, so it does have attenuation. The question is to know then at waht distance does it fade into background noise, or the background solar spectrum.
Besides that, what was the power of the beam? What was the encoding scheme? What was the modulation scheme? (polarization, Amplitude, Frecuency) which values? How many times was it repeated? Were also decoding instructions sent?
Like it is now, doesn´t seem to be much more than a marketing product, not a wikipedia article.
the following australian news report appears to contradict information in the article, can the facts please be verified? http://www.theaustralian.news.com.au/story/0,25197,25994209-12377,00.html?FORM=ZZNR5 -- 99.233.186.4 (talk) 17:29, 25 October 2009 (UTC)
I wonder what format they put the "message" into? It is quite obvious that if text messages are encoded using ASCII, that it is unlikely to be decipherable by some distant civilization who are not likely to use the same representational scheme as us. If images are encoded as black and white bitmaps, they at least would have some chance of being decodable, but I wonder how they will separate the apparent grouping of content from the one stream of bits, since they are not likely to use the same types of compression as we do on Earth!
Is it worthwhile to have sent one message? What if they miss it? Would it not be better to send the same message, multiple times at frequent intervals for eternity if we wish to give an opportunity to other intelligent beings to receive a communication from us?
Is there a record of all the messages or at least the 500 that were selected? — Preceding unsigned comment added by 220.255.1.84 (talk) 10:25, 31 July 2011 (UTC)
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