Log book for station MUD

Up-to-date information about the Seismograph in Mønsted Kalkmine

22. Aug 2001: The digitizer configuration was changed - the IIR DC removal filter corner frequency was changed from 10 sec to 1000 sec.

29. June 2001 - 23 Aug 2001: The station was down during this period. The instruments were damaged by lightening - the UPS and the power supply in the computer were replaced, the HRD24 was repaired by Nanometrics (GPS engine replaced).