ARPSN - Amateur Radio Public Seismic Network
Redwood City, CA - PSN - FFT-CSP Animation - April 2009


Channel One - North/South

Chang Heng's seismoscope
For More Information:
A New Look at an Old Tool:
the Cumulative Spectral Power of Fast-Fourier Transform Analysis
Sheng-Chiang Lee and Randall D. Peters
Physics Department, Mercer University, Macon, GA 31207
http://www.flyingsnail.com/AmateurRadio/VolksMeter-FFT-CSP.html

Presented by ARPSN
Amateur Radio Public Seismic Network