PSN-L Email List Message
Subject: Re: Help with a Lehman
From: John or Jan Lahr JohnJan@........
Date: Sun, 09 Jul 2006 22:26:58 -0700
At 08:06 PM 7/9/2006, you wrote:
> ...what practical considerations I might run in to if I
> significantly lengthen the boom.
The entire sensor must be shielded from drafts. The longer the boom,
the larger the cover
must be! For amateur seismology there is little point in trying to
achieve a period longer than 15 or 20 seconds. Tilt sensitivity will
limit the period you can achieve without frequent releveling.
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