Frequently Asked Questions
How do I assemble the instrument?
What type of dampening oil should I use?
Introductory level Q & A
What can I expect to record with my AS-1?
Where's the data? What are these .Z files?
Exactly how do I extract and save an event in .sac format?
Autosynchronizing your computer clock
How can I adjust my arrival time if my computer clock is behind?
How do I share data with other teachers?
How do I get the latest version of AmaSeis?
A nearby earthquake was reported, but I can't see anything on my helicorder record.
How can I fix my display if data is only going part way across the helicorder screen
"No data on COM1" when AmaSeis starts up.
The helicorder is displaying a totally flat trace.
The trace wanders around
Other noise of unknown source
My station was quiet but now it's very noisy!
My station was working but now it's going crazy with very high amplitudes.
How can I stop from having glitches on my helicorder screen (large negative spikes)?
How do I remove the spikes on the helicorder screen?
How do I know when an event occurs?
How do I pick P and S arrivals
How does the fault rupture length relate to epicenter?
Should I have been able to record that event?
What is the P-Wave shadow zone and what does it mean if you are located in that zone?
AS-1 Microseism Noise
Is up really up... or is my AS-1 polarity flipped? How can I tell?