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Seti signal



 
 
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  #1  
Old September 3rd 04, 01:32 AM
Alain Fournier
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Default Seti signal

In the 01 September 2004 edition of the NewScientist there is an article
about an unexplained radio signal found by the SETI@home project.
(http://www.newscientist.com/news/nog...?id=ns99996341)

The article has little information about the nature of the signal.
They do talk about the wave length and the patch of sky it comes
from and that it had been detected three times. But they don't say
how many bits it is or how strong it is. I assume they didn't receive
a digital encyclopedia, they would then be sure of its intelligent
origin. But is the signal more than a single beep barely stronger than
background noise? Does any one have information about how different
from back ground noise theses signals are?

Alain Fournier

  #2  
Old September 3rd 04, 02:04 AM
Joe Strout
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In article ,
Alain Fournier wrote:

In the 01 September 2004 edition of the NewScientist there is an article
about an unexplained radio signal found by the SETI@home project.
(http://www.newscientist.com/news/nog...?id=ns99996341)

... Does any one have information about how different
from back ground noise theses signals are?


Perhaps this will help:
http://setiathome.ssl.berkeley.edu/C...HGb02+14a.html
.


Best,
- Joe

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| Joseph J. Strout Check out the Mac Web Directory: |
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  #3  
Old September 3rd 04, 02:54 AM
Alain Fournier
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Joe Strout wrote:

In article ,
Alain Fournier wrote:


In the 01 September 2004 edition of the NewScientist there is an article
about an unexplained radio signal found by the SETI@home project.
(http://www.newscientist.com/news/nog...?id=ns99996341)

... Does any one have information about how different
from back ground noise theses signals are?



Perhaps this will help:
http://setiathome.ssl.berkeley.edu/C...HGb02+14a.html



Thank you for the information. Lets hope some other stronger
candidates come up (or that this one gets more reobservations).

To answer my own question, it is a single beep (but observed
on three different occasion at the same location). The signal
is somewhat clear but over all not something that wouldn't be
expected to happen randomly in all the background noise that
has been screened by SETI@home.

Alain Fournier

  #4  
Old September 3rd 04, 10:24 PM
Eric Chomko
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Alain Fournier ) wrote:
: In the 01 September 2004 edition of the NewScientist there is an article
: about an unexplained radio signal found by the SETI@home project.
: (http://www.newscientist.com/news/nog...?id=ns99996341)

: The article has little information about the nature of the signal.
: They do talk about the wave length and the patch of sky it comes
: from and that it had been detected three times. But they don't say
: how many bits it is or how strong it is. I assume they didn't receive
: a digital encyclopedia, they would then be sure of its intelligent
: origin. But is the signal more than a single beep barely stronger than
: background noise? Does any one have information about how different
: from back ground noise theses signals are?

There was something similar in the 60s, I believe. They called 'LGM'. It
turned out that they had discovered the first pulsar and not Little Green
Men.

Eric

: Alain Fournier

  #6  
Old September 9th 04, 01:27 AM
Alain Fournier
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Default

Michael Smith wrote:

And a major discovery, regardless. The the curious behavior of this signal (always starting at a particular frequency, and then drifting) suggests that it is some kind of local noise source.



Why would a local noise drift behave that way?

Alain Fournier

  #7  
Old September 9th 04, 04:00 PM
Greg D. Moore (Strider)
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"Alain Fournier" wrote in message
...
Michael Smith wrote:

And a major discovery, regardless. The the curious behavior of this

signal (always starting at a particular frequency, and then drifting)
suggests that it is some kind of local noise source.


Why would a local noise drift behave that way?


Local transmitter warming up/



Alain Fournier


  #8  
Old September 10th 04, 01:25 AM
Alain Fournier
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Default

Greg D. Moore (Strider) wrote:
"Alain Fournier" wrote in message
...

Michael Smith wrote:

And a major discovery, regardless. The the curious behavior of this


signal (always starting at a particular frequency, and then drifting)
suggests that it is some kind of local noise source.


Why would a local noise drift behave that way?



Local transmitter warming up/


My knowledge of radio transmitters is near to null and I have no
reason not to believe you that a transmitter warming up would behave
that way. But just to evaluate the likeliness of that I would like
to know if you actually know that a transmitter warming up does
behave that way, or that it might behave that way or is this
just an educated guess from you. Also, do you have an explanation
as to why that would happen when a particular point in the sky is
observed?

For my part, given the low grade of the signal and enormous amount
of observations analyzed, I think it is quite possible that this
is just some random variation in the background noise that looks
like a signal. But if it were to be observed a few more time then
the random variation theory takes a beating. In a such a case
I would like to know more about local transmitters warming up.
If that would also turn out to fail to explain the signals then
I would like to know more about little green men :-)


Alain Fournier

 




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