PSN-L Email List Message

Subject: RE: Range of 4,5Hz geophone
From: =?ISO-8859-1?Q?J=F3n_Fr=EDmann?= jonfr500@.........
Date: Sat, 07 Jan 2006 21:02:20 +0000

Hi all

I do think i found the source of the problem, i think that the ampling
of the psnamp board was too low. I did change it, but i am not sure how
much i did change it, it has the jumper on and the gain is from 175 -
1750. I did turn them clockwise and i think the settings now at maximum
settings. I see bit more noise then i did before.

If the range of a 4,5Hz geophone is up to 640 km max, then i problay
will not have problems picking up most small quakes that happen near me,
or at least up to 200km away from me.

Jón Frímann Jónsson


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