PSN-L Email List Message
Subject: Re: Self leveling and about spurious noise
Date: Wed, 20 Nov 2002 11:45:19 EST
Tom that suggestion of yours to use water tanks is great. It will not work in
my setup due to a lack of space but it is a good idea.
My seismo has been off for years but may soon be going again. I find so
much on our web and pleased I found it.
When I had it going I was bothered with spurious responses. Many times
the trace was one quarter inch peak to peak. I think it was because I am
seven miles from the Pacific at Manhattan Beach, CA. I have read that waves
cause a shift for miles. Any ideas on that? I have made a rough calculation
of how much the sift was but didn't keep the figures and not sure if all was
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