[irised] Gain

[Dell Taylor and Jerry Cook]

Hi Dennis,
I have had my AS-1 on a counter in a 2nd floor classroom (gain = 25), under
my desk (gain = 30), on the floor at the side of the classroom next to the
wall (gain = 40), and currently in the corner behind a display case (gain =
80). Use whatever it takes so that the background noise is 1-2mm.
J. Bob

-----Original Message-----
From: irised-bounces at iris.washington.edu
[mailto:irised-bounces at iris.washington.edu] On Behalf Of John or Jan Lahr
Sent: Tuesday, January 16, 2007 5:48 PM
To: irised at iris.washington.edu
Subject: Re: [irised] Time is of the essence

Dennis,

I think you should be able to run with a gain of 20 or so.  The trace 
should always show some vibration.

John

At 03:49 PM 1/16/2007, you wrote:
>I just recently received and as1 and was wondering what is the 
>optimal gain for the helicorder to where you get earthquakes but not 
>as much kid noise. I have mine set to 1 currently but is that 
>sensitive enough to pick up events?
>On Jan 16, 2007, at 9:12 AM, Jerry Cook wrote:
>
>>Hi All,
>>I am having trouble with my computer clock. Every morning when I 
>>come in I ping "atomic clock sync" and my clock is off by about 3.5 
>>minutes. I have the program set to ping automatically but that only 
>>happens once a day. Is there a way to automatically ping more 
>>often? Why is my clock so inacurrate?
>>J. Bob
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>><mailto:irised at iris.washington.edu>irised at iris.washington.edu
>>http://www.iris.washington.edu/mailman/listinfo/irised
>
>Dennis Griner
>5th Grade Highland Terrace
><mailto:dennis.griner at shorelineschools.org>dennis.griner at shorelineschools.o
rg
>
>
>
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