Guralp Systems CMG-6TD User Manual
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4.12 Configuring the built-in digitizer...........................................................................42
4.13 Downloading data over FireWire...........................................................................43
4.13.1 Reading 6TD disks..........................................................................................44
4.14 Receiving data in Scream!......................................................................................47
5 Configuration with Scream!...........................................................................................49
5.1 Configuring the digitizer..........................................................................................49
5.1.1 System ID..........................................................................................................50
5.1.2 Output control...................................................................................................51
5.1.3 Triggering.......................................................................................................... 52
5.1.4 Mux Channels...................................................................................................58
5.1.5 Ports................................................................................................................... 59
5.2 Controlling the instrument......................................................................................60
5.2.1 System............................................................................................................... 61
5.2.2 Triggering.......................................................................................................... 62
5.2.3 Calibration.........................................................................................................62
5.2.4 Data flow .......................................................................................................... 63
5.2.5 Transmission mode commands........................................................................65
5.2.6 Buffering mode commands...............................................................................68
5.3 Digitizer status streams............................................................................................69
5.3.1 GPS.................................................................................................................... 69
6 Calibrating the 6TD........................................................................................................ 71
6.1 The calibration pack................................................................................................71
6.2 Poles and zeroes....................................................................................................... 71
6.3 Frequency response curves......................................................................................73
6.4 Obtaining copies of the calibration pack.................................................................73
6.5 Calibration methods.................................................................................................74
6.5.1 Noise calibration with Scream! .......................................................................74
6.5.2 Sensor response codes......................................................................................77
6.6 The coil constant......................................................................................................78
7 Command-line interface.................................................................................................79
7.1 FORTH...................................................................................................................... 79
7.2 General configuration..............................................................................................80
7.2.1 SET-ID............................................................................................................... 80
7.2.2 BAUD.................................................................................................................81
7.2.3 LOAD................................................................................................................. 81
7.2.4 LOAD-I.............................................................................................................. 81
7.2.5 TEMP?............................................................................................................... 82
7.2.6 ETHER............................................................................................................... 82
7.3 GPS and timing systems...........................................................................................82
7.3.1 GPS-TYPE..........................................................................................................82
7.3.2 HR-CYCLE.........................................................................................................82
7.3.3 XGPS................................................................................................................. 83
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Issue F - February 2014