Guralp Systems CMG-DCM build <10,000 - Manual (Page 179)

Operator's Guide
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adc­command module calib­noise arguments
Perform a broad-band noise calibration according to the
specified arguments, which are given as a space-separated
list of key=value pairs:
•
component=[ ALL | Z | N/S | E/W ] - specify
the component(s) to be calibrated
•
duration=m - specify the duration, in minutes, where
m is an integer value. For accurate results, the
duration should be significantly longer than the
response time of the instrument.
•
amplitude=a - specify the amplitude, where a is the
integer percentage of the full output of the cailbration
signal generator. This can normally be given as 100
but should be reduced if clipping is noticed.
•
adc­command module obs­deploy
Deploy an OBS system by levelling the bowl, then unlocking
and centring each mass in turn. This sub-command takes no
options.
•
adc­command module obs­level bowl=which
Level the bowl or bowls of an OBS system. The parameter
which should be one of 1BOWL (for single-bowl units), Z, N/S
or E/W.
•
adc­command module obs­datum bowl=which
Return the levelling bowl of an OBS system to the datum
position. The parameter which should be one of 1BOWL (for
single-bowl units), Z, N/S or E/W.
•
adc­command module obs­unlock
Unlock each of the masses for deployment of an OBS system.
This sub-command takes no options.
•
adc­command module obs­lock
Lock each of the masses for deployment of an OBS system.
This sub-command takes no options.
November 2010 179