Brett--It is always encouraging to see someone gaining an interest in
amateur seismology.  My suggestion is TO BUILD something for your first
system--(there is a half dozen designs out there) and later on you can move
to a "black box" that does the work for you.  Any seismic system is an
electro/mechanical device that you can tune into--understand its workings &
improve performance as you go along. There is a satisfaction in a working
system where you are part of the nuts & bolts.
   Best wishes,  Jim
----- Original Message -----
From: "Brett Nordgren" 
To: 
Sent: Thursday, January 31, 2008 6:44 PM
Subject: Re: Comparison of available seismometers


> Les,
>
> Many thanks.  I hadn't looked at the manual, only the spec. page.  It
> sounds like that should have what I'm looking for.
>
> Brett
>
> At 01:40 PM 1/31/2008 -0800, you wrote:
> >Hi Brett,
> >
> >I believe that the VolksMeter User's Manual, Appendix A - Theory Of
> >Operation, addresses the frequency response issue.  The User's Manual is
> >available on-line at our website, www.rllinstruments.com  Section 7
(which
> >starts on page 7 of the appendix document) is relevant to your question:
> >http://www.rllinstruments.com/PDF_Files/VM%20II%20UM%20-%20App%201.pdf
>
> >
>
> >I hope this answers your questions.  If not, please let me know.
> >
> >Regards,
> >
> >Les LaZar
> >RLL Instruments / a division of Zoltech Corporation
>
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