Seismology Instruction with the AS 1

  Longitude

   Enter 

in 

decimal 

degrees

  Elevation

Enter in meters

  Station Code 

A 4 letter code, the fi rst two letters represent your school or 

organization, the last two letters are a state abbreviation.  If you select 

this code, please check to not duplicate an existing station code at 

http://www.scieds.com/spinet/spinet_stations.php

.  If you have any 

            questions or concerns, contact the network administrator at 

spinet@scieds.com to be assigned a code.

  Component

The AS 1 is a vertical component instrument

To determine the latitude and longitude of your school consult a topographic map or 

use a handheld GPS receiver.  If these options are not available, maps are available 

online.  Go to 

http://terraserver.homeadvisor.msn.com

, type in the school address and 

 select 

Go.  Select an available image and record the latitude and longitude displayed 

under the address.

Once the station properties have been entered, this information is stored and does 

not need to be entered again.

Instrument Settings

     All settings in this section only affect the way the data is displayed on the computer screen.  

They do not effect the data values that are stored on disk.

   From the File Menu choose Settings > Helicorder

   Lines Per Hour   The display can show anywhere 

from 24 minutes to 24 hours of data on the screen.  

This value defaults to 1, which means that the width 

of the screen represents one hour. The data for one 

day is contained on one screen, this can be useful in 

searching for earthquakes.  If you change the lines per hour setting  to 3, one hour of 

recording will take up three lines and 8 hours of recording will be seen on one screen 

rather than 24 hours.  The value can be increased up to 60 to show details of the 

waveforms.  This can be useful for in class testing and demonstrations.  Select a 

number that divides into 24 unless you are using a number greater than 24 such as 

30 or 60 (one line a minute).

AmaSeis Version 1.0 Level 2005.05.19

3.3