Full Disclosure mailing list archives

RE: Signal to Noise Ratio for February


From: "Ng, Kenneth (US)" <kenng () kpmg com>
Date: Thu, 25 Mar 2004 14:50:45 -0500

I'd like to know how low the bit rate had to be to lock onto a signal that
low.  :-)  You can do incredible correlation tricks if you don't mind
waiting a long time for the data.  In California they use GPS to measure
millimeter movements of the fault lines, but they signal correlate for
hours, if not days to get the phase differentials.

Conversely, this list needs a larger bit rate to get information out to
people in a timely fashion.

-----Original Message-----
From: full-disclosure-admin () lists netsys com
[mailto:full-disclosure-admin () lists netsys com]On Behalf Of
Valdis.Kletnieks () vt edu
Sent: Thursday, March 25, 2004 11:10 AM
To: Epic
Cc: 'flatline'; 'Gregory A. Gilliss'; full-disclosure () lists netsys com
Subject: Re: [Full-disclosure] Signal to Noise Ratio for February 


On Wed, 24 Mar 2004 17:56:09 MST, Epic <epic () hack3r com>  said:
Lately the SNR wouldn't allow for minimal communications if this were
any communications infrastructure.
You'd be amazed what Shannon lets you get away with.
http://seti.sentry.net/archive/bioastro/2000/0147.html
-178dBm.  Yowza.  Need a really big-ass dish to find that signal. ;)


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