Hello John, Wednesday, July 05, 2000, 4:29:02 PM, you wrote: JH> We often have these problems in our labs. I have an inelegant solution to JH> this problem. I take aluminum foil, cover both sides in paper and tape it JH> shut and wrap it around the data recording portion of the cards. It JH> completely eliminates noise...but it looks like hell. The new computer that is causing the problem is not even one of the the seismo computers, it's just on the same network. It's an NT machine that routes between my local network and the network that I get my Internet signal from. I had to make an 2.4 ghz link to my house since the nearest phone line is 6 miles away. From your suggestion I assume that it might be that the noise is coming the the air as RF interference. I will try to make some more shielding as you suggest. I have a new 3 component broadband that I have kludged into Larry's board. It's flat between 23 second and 40 Hz. I post the PSN files on an FTP at 200.46.19.178 anonymous no password. For now I have only been collecting data but I hope to start some sort of long term project. If you have any ideas please let me know. I am trying to make the leap between seismometry and seismology. My interest run towards local events since the network run by the University of Panama probably can't see events much below 2.5 Md. Warmly, angel __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>