GCFTools

GCFtools for UN*X systems

(page last updated April 24, 2010)

Current Release Version: 1.6.5 Sept 2004 (contact us for a more recent release or to get sourcecode)

GCFtools news:

The GCFtools software suite now supports the new Guralp 6TD instrument. Please grab the latestrelease to use the new dfdextract program and updated gcfconv program. dfdextract allows usersto extract GCF images off of 6TD field disks using Solaris or Linux. Another new feature of GCFtoolsis the ability of gcfclient to reliably pull data from a DM connected to a Lantronix MSS100 TerminalServer. Included in Release v1.6.1 is a copy of gcf2ew which allows users on Solaris and Linuxsystems to feed data from a DM digitizer connected to a MSS100 or via direct serial into theEarthWorm processing software.

Release v1.6.5 gcf2ew is now included with Earthworm 7.X and works on Linux and Solarisplatforms. Other modifications were made for newer Guralp digitizers but this code is not publiclyavailable yet.

Release v1.4: ISTI proudly announces the release of the GCF PASSCAL Database Tools. Theseprograms allow for importing data from a Guralp DM24 digitizer into the PASSCAL DataBase(PDB) . Guralp users now have the full suite of freely redistributable, open source PASSCAL seismicprocessing tools at their disposal. The PASSCAL software allows the user to accomplish many tasks,include writing Full SEED volumes as well as the the many viewing and organizational tools. Theprograms for loading the data into the PDB as part of the standard ISTI GCF distribution(GCFtools).

GCFtools Summary:

The GCFtools software suite provides the user with a complete solution to data acquisition using theGuralp SAM/DM or 6TD digitizer modules under the UN*X operating system. Presently the softwaresuite is written for use under SunOS, Solaris, and Linux. The current version of the softwareprovides the following capabilities:

GCF data path to the PASSCAL DataBase (PDB) under UN*X.GCF data acquisition via serial communications under UN*X.Reliable GCF data feed to Earthworm using gcf2ew under Solaris.GCF data acquisition via MSS100 Lantronix Terminal Servers - Internet enable and reliablyreceive GCF packets from remote field sites.UNIX to Windows (SCREAM) connectivity via Internet or Local Area Network usingTCP/IP. Transmit Windows acquired data to a UN*X host or vice versa.GCF data conversion to common seismic formats such as miniSEED, AH, PASSCAL-SEGY,and SAC.

UN*X access to data written on SAM/DM SCSI disks.UN*X access to data written on 6TD DFD SCSI disks.UN*X client/server capability - allows user to reliably transmit GCF data between UN*Xhosts for conversion and archiving.C Language Application Programming Interface (API) - a C library with documentation forprogrammers to use under UNIX.Complete UN*X manual pages for all utilities. Including a Users Manual in Word.

Currently Released Programs:

gcfutil, gcfconv, gcfclient, gcfserv, gcfdisk, xdisk, tkgcf2mseed, dfdextract

For Support Contact ISTI and request access to this code. We provide the code for free,but require a support contract for help.

Instrumental Software Technologies, Inc., Copyright 1999-2010