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Güralp Systems digital instruments and data modules use Güralp Compressed Format (GCF) to share seismic data. The format is used both for data storage and for data transmission over serial links or TCP/UDP networks. Two protocols, the BRP protocol and the scream protocol, are used for transmitting GCF data. Read more...
This article explains how to convert seismic data from Guralp Systems instruments into the formats required by different analysis packages. Depending on your application, data streams can be converted in real time, or saved in GCF format and converted to your preferred format later. Read more...
The easiest way to extract data from a GCF file is by using the “View” mode of Scream!. Read more...
Güralp provide a number of GCF file format conversion utilities to help with protocol conversion and common data management tasks you can access these in the Firmware and Software area.
GCF data from digitisers are identified by the combination of System ID and Stream ID. The “System ID” identifies the digitiser from which the data originate and each stream from a given digitiser is then identified by its “Stream ID”. Each Stream ID is composed of two parts, the “Serial Number” and a two-character suffix to identify which data are contained in the stream. Read more...