User's Manual
Table Of Contents
- 5 Data Collection Mode
- 6 Surveying Techniques
- 6.1 Low Frequency Reflection (Profiling) Mode
- 6.2 High Frequency Reflection (Profiling) Mode
- 6.3 Antenna Orientation
- 6.4 Triggers
- 6.5 Free Run
- 6.6 Odometer Data Acquisition
- 6.7 Signal Polarity
- 6.8 Spatially Aliasing the Data
- 6.9 Creating a Test Line for Data Quality
- 6.10 Adding GPS for Positioning
- 6.11 Common Mid-Point (CMP) Survey
- 6.12 Transillumination Surveys
- 7 Troubleshooting
- 8 File Management
- 9 Care and Maintenance
- 10 Helpful Hints
- Appendix A: Data File Formats
- Appendix B: GPR Signal Processing Artifacts
- Appendix C: Excerpts from the HP Fiber Optic Handbook
- Appendix D: Health & Safety Certification
- Appendix E: FCC Regulations
- Appendix F: Instrument Interference
- Appendix G: Safety Around Explosive Devices
pulseEKKO PRO Appendix F: Instrument Interference
F-1
Appendix F: Instrument Interference
Immunity regulations place the onus on instrument/apparatus/device manufacturers to assure that extra-
neous interference will not unduly cause an instrument/apparatus/device to stop functioning or to function
in a faulty manner.
Based on independent testing house measurements, Sensors & Software Inc. systems comply with such
regulations in Canada, USA, European Community and most other jurisdictions. GPR devices can sense
electromagnetic fields. External sources of electromagnetic fields such as TV stations, radio stations and
cell phones, can cause signals detectable by a GPR which may degrade the quality of the data that a GPR
device records and displays.
Such interference is unavoidable but sensible survey practice and operation by an experienced GPR prac-
titioner can minimize such problems. In some geographic areas emissions from external sources may be
so large as to preclude useful measurements. Such conditions are readily recognized and accepted by the
professional geophysical community as a fundamental limitation of geophysical survey practice. Such
interference being present in the GPR recordings is not considered as an equipment fault or as a failure to
comply with immunity regulations.