PSN-L Email List Message

Subject: Ambient ground noise and solar flares?
From: Thomas Dick dickthomas01@.............
Date: Tue, 12 Jul 2011 13:03:45 -0500


I have not been satisfied with my seismic units; an AS-1 and two 
homemade Laymans,  running Larry's software and electronics. The last 
two months the FFT shows strong peaks at ~.2 hz and .04hz. These peaks 
are unusually strong this year ...vertical scale log over 50 and 
reaching 120. This is based on taking FFT's at about 3 AM local time 
provided there is no regional or teleseimic earthquake data coming in. 
Is there any literature on this ambient noise being associated with 
sunspot activity? I noticed a flare was recorded yesterday and about the 
same time last month. It even affected my cell phone range. The oceans 
and surface storms that I normally attribute to these peaks have been 
relatively mild the last week here in middle U.S. Any comments?
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