GRFO - STATION INSTRUMENTATION (2)


1. Global Seismograph Network - GSN:

DATES OF OPERATION: 26 Jan 1994 to Present.

SEISMOMETER TYPE & ADC:
Teledyne-Geotech Model 36000 borehole seismometer.  ADC is Quanterra QX80.    

DIGITAL FORMAT:
24 bit integer data words for all broadband, long period, very long period and
ultra long period channels.  Range: +8,388,607 to -8,388,608 counts
16 bit integer data words for mass position and all environmental channels.
Range:  +32767 to -32768

EVENT DETECTOR ALGORITHM:  None

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COMMENTS: