PSN-L Email List Message
Subject: Re: Hekla volcano geophone planned
From: ian ian@...........
Date: Fri, 08 Feb 2008 14:23:47 +0000
today's mid-Atlantic quake saturated my high gain channel (+/-0.1V), so
a lot of the data comes from the mid-gain channel (+/-1.0V)
The trace is a bit noisy with the strong winds here causing the trees to
bend and twist.
> In a message dated 06/01/2008, ian@........... writes:
> Looking back I can see that there are a few traces (not many) which
> flipped between channel gains +/-0.1V and +/-1.0V. So the feature is
> giving me more gain to look into the weaker signals without being
> clobbered with saturation on the stronger traces - both the high
> and low
> pass filters apply a 20db gain to compensate for the attenuation
> of the
> Hi Ian,
> I would expect that all your out of range signals will be due to
> the surface waves?
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