Guralp Systems CMG-DCM build <10,000 User Manual
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Acquisition Modules and Platinum Firmware
Recording and Retrieving Data
only one file will be generated per day. The files may contain a single
component or multiple components: see the next field description for details.
The default file period is 30 minutes.
File name: The contents of this field determine how the data files are named.
Tokens within the field are replaced by parameters derived from the data
while all other characters are coped verbatim into the resulting file-names. It
is possible to organise files into hierarchical directories by using
forward-slash characters ('/') in this field. Please see section 11.2.2 on page
146 for details of the tokens that can be used.
Note that if this field contains any token that identifies a stream, individual
files will be created for each stream. If no such token is present, multiple
streams will be recorded into each file.
Flush threshold: This drop-down menu allows control over the percentage
utilisation of the miniSEED ring-buffer which triggers a flush to the mass
storage device. The default is 50% but you can also choose 10%, 25% or 75%.
MiniSEED compressor: This drop-down menu allows the operator to select
which instance of gdi2miniseed is used as the data source. The menu will
offer all configured instances.
11.2.1.3 GCF
GCF is the native recording format of Platinum firmware. It can be read
directly by Scream and many software packages are available (from the GSL
web-site) for converting it into other formats.
Selecting the “GCF” tab displays the following screen:
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Issue E - February 2014