Hello PSN;

I have been looking at your noise profiles and begin to wonder
about technical specs for amateur hardware.

Can any of you tell/show me what the noise profile
should look like coming from the ground, through
velocity transducer, through anti-alized filtered hardware
Through 12 bit A/D into single float raw data display using
like Winquake FFT  for the following types of data:

0. acceleration    inches/second^2
1. Velocity            inches/second
2. Displacement  inches

I invite you to create a representation of your
ideas and draw them in paint or whatever program
then send it to me as a BMP or JPG or GIF file
as an attachment.

You do not need to show detailed squiggles just
the general profile of what to expect.

It seems to me your hardware is overfiltering
or your sample rates are wrong. Something
does not look right to me in your various
noise profiles but I cant put a finger on
any of it. Possibly you are converting from
other kinds of source data than RAW to make
your PSN files.

Thanks Ahead of time, for your responses.
regards,
geoff

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