Over the past few years, I have spent a lot of time as a subcontractor to various engineering companies performing UXO (UneXploded Ordinance) surveys. Most of these surveys use GPS systems for positioning of the geophysical sensors. I spent a lot of time both collecting and processing data for these surveys. I began to wonder if I could build an inexpensive GPS system of my own for use on mining and hydrocarbon exploration surveys where the need for accuracy isn�t so critical. Earlier this year, I built such a system using a small Garmin receiver and a handheld computer (PDA) to log the data. I have used this instrument successfully on a production survey and have tested it against a full differential survey grade instrument.
I have posted all of the information on the system configuration, difficulties I ran into along the way, and the results of the test on my web page, www.bigskygeo.com for anyone who is interested. Just follow the link to GPS and Geophysics. Clark Jorgensen Big Sky Geophysics P.O. Box 353 Bozeman, MT 59771 USA (406) 587-6330 phone (406) 587-6394 fax [EMAIL PROTECTED] _______________________________________________________ List archive: http://www.mail-archive.com/[email protected]
