If you are looking for GPS or GIS solutions, consider the following: Dick Lewis, RLA GeoSystems, has extensive experience with both GPS and GIS solutions. A Trimble representative for both survey and resource GPS, he is a Certified Trainer for Trimble’s Pathfinder products and ESRI's ArcView and ArcCAD GIS software. He is a dealer for ArcView, ArcCAD and PC ARC/INFO. Lewis has conducted GIS/ArcCAD classes at California State College, Los Angeles and given over 50 GPS-GIS seminars.
 
He is a member of the Computer Press Association with over 40 published articles on GIS and computer technology. Lewis was a speaker at the 1995, 1996 and 1997 Trimble User’s Conference. He has published a chapter on GPS for a recent book, "GIS Data Conversion."
  
RLA operates a Trimble Super Base Station for Trimble users. Users can dial-in by modem and download base station hourly files for differential correction. The new PFinder software differential engine has increased RLA base station’s submeter range for ProXLs.
 
This Web page offers a variety of solutions for surveyors, GIS practioners and GPS mappers. We can offer solutions to you too!