At 09:17 AM 10/17/99 -0700, Jan wrote:
>Strong motion is well and good.... but if you don't provide something that
the
>students can relate to.... you're not going to get interest or usage.
Hi Jan,

I totally agree.  Strong motion can only be part of the package, because
at any one school there could be years between interesting records.  At
least in California the obvious solution is to have two gain levels,
so that small events will be picked up for everyday review and interest
but large, rare events will still be captured on scale.

In Colorado, as in much of the US, we need to rely both on high 
gain and long period sensitivity, as teleseisms will provide the 
only week to week activity of note.  The best bet would be to 
for this area would be to have three outputs: high and low gain 
high frequency and high gain low frequency.  Of course
this could be done with one broad band, high dynamic range 
sensor, if the cost and maintenance were within reason.

John
John C. Lahr
1925 Foothills Road
Golden, CO 80402
(303) 215-9913
http://lahr.org/john-jan

I am only one, But still I am one.
I cannot do everything, and because I cannot 
do everything, I will not refuse 
to do the something that I can do.
Edward Everette Hale

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