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Unit Serial Number: 77 
Event Number :     1 
Selected Channels : ch1   ch2  ch3 
Clock Synchronization Source : External IRIG - E 
Record Kind : Event Record 
Timezone Offset : 8 
Latitude of Unit Location : N 39deg 10' 14 
Longitude of Unit Location :E 117deg 13' 8 
Elevation of Unit Location : -1 m 
Azmuth of Sensor : 0 
Full Scale Range of Standard FBA : +/- 2g 
Natural frequency of FBA is : 80Hz , 80Hz , 80Hz 
Sensitivity of FBA is : 1250mv/g , 1250mv/g , 1250mv/g 
Damping ratio of FBA is : .70, .70, .70 
Channel I.D string :11111111,22222222,33333333 
Report Intensity Parameters : Yes 
Threshold for defined duration : 20% 
Selected four frequencies for calculating responses spectrum : 8Hz 5Hz 2Hz 1Hz  
The AFT weight is :  0.85,0.05,0.10 
The Res weight is :  .1, .4, .1, .4 
The 3_r weight is :  .4, .6 
Sample Frequency :  200 Hz 
Preamplifier Gains : X1 
High Pass filter: DC coupled 
Internal Channel Trigger Votes:  1,  1,  1 
External Trigger Votes: 2 
Total number of weights required to trigger: 2 
Pre-event Memory Length: 20 sec 
Post-event Memory Length: 20 sec 
Minimum Run Time: 40 sec 
Channel Trigger Algorithm: 1.STA versus LTA  2.STA versus LTA  3.STA versus LTA 
LTA Critical Value: 5 
STA Length: 100 samples 
LTA Length: 20 STA 
STA/LTA difference or Bandpass-filtered Thresholds :  5, 5, 5 
STA/LTA ratio: 2,2,2 
GPS Turn-on interval : 120 min 
File Lengh : 8200 
Event start_time :2003/4/2 8:17:50 795 
Time of last synchronization time : 2003/3/31 10:20:22 
New time of last synchronization time : 2003/4/2 6:20:37 0 
Old time of last synchronization time : 2003/4/2 6:20:36 989 
Channel Positive Maximum of record : 0,210,215 
Channel Negative Maximum of record : -205,0,0 
User Comment: 1.19