Geospace Technologies GSXLC Cable-free, Radio-free, Autonomous Data Recorder User Manual GSX 3 rev 1

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Document ID	3907850
Application ID	vvhjv+195PaT2y+NpQ4nhQ==
Document Description	GSX-3 User Manual rev 1
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	27.74kB (346703 bits)
Date Submitted	2018-07-01 00:00:00
Date Available	2018-07-01 00:00:00
Creation Date	2018-06-27 10:25:32
Producing Software	Microsoft® Word 2016
Document Lastmod	2018-06-27 10:25:32
Document Title	GSX-3 User Manual rev 1
Document Creator	Microsoft® Word 2016
Document Author:	David Moore

Geospace Seismic Recorder (GSX-3)
USER MANUAL
7007 Pinemont
Houston, TX 77040 USA
Note: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
Geospace Technologies declares that the radio equipment type IEEE 802.15.4 Radio is in compliance with Directive 2014/53/EU. The
full text of the EU declaration of conformity is available at the following internet address.
http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32014L0053
Operating frequency range：2405~2475MHz; Max. tune-up power with tolerance：1±1.0dBm
CAUTION: Any changes or modifications to this device not explicitly approved by the manufacturer could void your authority to operate this
equipment.
FCC
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
FCC RF Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and
operated with a minimum distance of 20cm between the radiator and any part of your body.
Industry Canada
(English)
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device
may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the
device.
GSX-3 User Manual
Page 1 of 3
(French)
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée
aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.
IC RF Radiation Exposure Statement:
(English)
This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be
installed and operated with a minimum distance of 20cm between the radiator and any part of your body.
(French)
Pour se conformer aux exigences de conformité CNR 102 RF exposition, une distance de séparation d'au moins 20 cm doit être maintenue entre
l'antenne de cet appareil ettoutes les personnes.
Deployment
The GSX-3 should be deployed with the metal plate down. This provides sufficient earth grounding and
maximum cooling of the unit as well as providing the GPS receiver in the top to the unit with an ideal
“view” of the satellite constellation. The grounding spike should be fastened to the unit prior to
deployment to provide maximum earth coupling. The unit should be transported on its side in order to put
the unit into standby mode and minimize battery consumption prior to use. Once the unit is ready to be
deployed connect the battery and the GSX-3 will immediately begin power on self-test.
The GSX-3 will test all of its internal circuits followed immediately by an impedance test of the seismic
sensors. The LED that can be seen from the top of the GSX-3 will flash codes to indicate the GSX-3’s
condition. The GSX-3 will enable the Global Positioning System (GPS) receiver and begin to flash the
code that indicates that it is searching for satellites. Within a few seconds the GPS receiver will have
sufficient satellite information to obtain a 3 dimensional fix. The flash code will change to indicate this
condition and the GSX-3 will now begin to acquire seismic data if it has been programmed to begin
recording immediately. See Programming below. After several minutes the internal GSX-3 clock will be
sufficiently disciplined and the GPS receiver will be turned off. The flash code will again change to
indicate this state. See the flash codes below.
Radio Status Monitoring
A GSX-3 may be connected to a laptop computer and used as a hub to monitor the status of any GSX-3s
within a 50m to 100m radius via a radio dongle enabled high frequency radio link. In this mode the
laptop/hub running LineViewer software monitors and logs status information from all of the GSX-3s that
it communicates with. The laptop stores the GPS location, acquisition status, temperature, battery status
and the nonvolatile memory status of each GSX-3. By moving the hub throughout the seismic spread all
of the GSX-3s in the survey may be monitored and logged. This logging may take place during
acquisition of seismic data with no adverse effect on the data quality.
Flash Codes
GSX-3 Start-up Error Codes
Critical GSX-3 Error:
GSX-3 User Manual
LED flashes repeatedly on solid for 1 second followed by off for one second.
Page 2 of 3
Critical Seis Input 1 Error:
Critical Seis Input 2 Error:
Critical Seis Input 3 Error:
Critical Seis Input 4 Error:
Critical Battery Error:
Non-Volatile Memory Error:
Non-Volatile Memory Full:
LED on solid for 1 second followed by 1 short pulse.
LED on solid for 1 second followed by 2 short pulses.
LED on solid for 1 second followed by 3 short pulses.
LED on solid for 1 second followed by 4 short pulses.
LED on solid for 1 second followed by 5 short pulses.
LED on solid for 1 second followed by 6 short pulses.
LED on solid for 1 second followed by 7 short pulses.
GSX-3 Run Time Codes
GPS on but no GPS fix:
GPS on with GPS fix:
Recording with GPS off:
Sleeping:
Running geophone tests:
One LED flash per second.
Two quick flashes once per second.
One quick flash each 8 seconds.
Two quick flashes each 10 seconds.
LED flashes on for 10 ms 5 times per second.
Downloading
The GSX-3 non-volatile memory may be read and cleared by removing the battery connection
and inserting the unit into one of the outlets in the GeoReaper. See the GeoReaper User Manual
for further instruction.
Programming
The GSX-3 recording parameters such as sample rate, pre-amp gain, record mode, and testing,
are programmed and stored in non-volatile memory in the GSX-3 by the GeoReaper. See the
GeoReaper User Manual for further instruction.
GSX-3 User Manual
Page 3 of 3

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