OBN - STATION INSTRUMENTATION

2. Global Seismograph Network - GSN:

DATES OF OPERATION:	19 Feb 1989 to 17 Jun 1998.

SEISMOMETER TYPE AND DATA ACQUISITION SYSTEM:
Streckeisen Model STS-1/VBB 3 component system for broadband, long period and
very long period channels.  IDA MK4 data acquisition system.  

CALIBRATION EPOCHS:	1989, 050 - 1998, 168

DIGITAL FORMAT:
16 bit integer words for all broadband (20 sps) data.  32 bit integer words
for synthesized long period (1 sps) and very long period (0.1 sps) data.  

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