PSN-L Email List Message

Subject: Re: calibration info
From: The Lahrs johnjan@........
Date: Fri, 01 Dec 2000 22:04:36 -0700


I'm glad that you have a system working with AmaSeis software.

Could you post the schematic and parts list for your electronics/AD
and also make your version of AmaSeis available?  I think others might
find it quite useful.


At 12:22 PM 11/19/00 , you wrote:

>...  My home brew
>electronics board only has 3 chips: one low noise opamp, one switched
>capacitor 8 pole bessel filter chip, and one PIC microprocessor
>with built-in 16 bit adc and serial output ports.  I run a serial cable to
>my PC directly from the mpu, and system power (~3ma) is drawn from
>the serial port.  I log the serial data at 16 sps with the Amaseis freeware
>which can produce files for input to WinQuake. My data logging
>computer is an old P90 that simultaneously runs SETI@HOME and
>is used for other odd jobs, so Amaseis does not seem to be using
>much of its resources.
>Dave Saum

John C. Lahr
1925 Foothills Road
Golden, CO 80402
(303) 215-9913

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Larry Cochrane <cochrane@..............>