Hi Jim,

LCSV1 is a volume dataset from my 5 second Kinemetrics SV-1 Vertical intermediate 
period sensor (http://www.seismicnet.com/info/Kinemetrics_SV-1_vertical.pdf). The raw 
data channel is LCZS1 and LCZS2 has a period extending filter applied to the data to 
extend the period to 20 seconds.

LC45V is also test of the period extending filter in WinSDR. The sensor is a 4.5Hz 
horizontal geophone. In the volume set are LCEG1, the raw data channel, and LCEG2 the 
period extended channel. The period has been extended to 1Hz.

Regards,
Larry Cochrane
Redwood City, PSN

On 4/11/2012 7:49 AM, Jim ODonnell wrote:
> Thanks for all your posts Larry:
> Question-  Could you be specific on what these sensors are?
>
> 120411.083624.lc45v.psn
> 120411.083624.lcsv1.psn
>
>
> Jim O'Donnell BC-Geophysics
> Geophysical Consultant/Contractor
> Geotechnical/Geothermal/Oil&  Gas/Mining Applications
> Seismic Surveys- Passive Surface Waves, Refraction-Tomography
> Ground Penetrating Radar, Resistivity, Magnetic,&  VLF-EM Surveys
> Geophysics@..........  702.293.5664  702.281.9081 cell
> Boulder City, NV 89005
>
>
> ---------- Original Message ----------
> From: Larry Cochrane
> To: psnlist@..............
> Subject: Re: big quake
> Date: Wed, 11 Apr 2012 02:08:27 -0700
>
> USGS Report:
> 2012/04/11 08:38:38   2.348   93.073  M8.7   33.0 OFF THE WEST COAST OF NORTHERN SUMATRA
>
> -Larry
>
> On 4/11/2012 2:00 AM, Dave Nelson wrote:
>>  large even rolling in right now !!
>>
>>  Dave
>>
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