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George A. Shimp II & Associates, Inc.
Land Surveying - Land Planning
- Surveying Florida Since 1974 -
Equipment
George A. Shimp II & Associates, Inc. currently utilizes a wide range of field equipment to increase productivity and meet the demands of the customers.
Robotic Total Stations: We currently use four robotic total stations. Robotic Total Stations differ from Total Stations in that they do not require a field technician to operate the Total Station once it is set up and running. The instrument will lock onto the target prism reflector and follow the prism as the rod operator moves. All data collection is handled at the rod, rather than at the total station, which makes it possible to run a "one-man field crew" on simple jobs without losing productivity.
Real time Kinematic (RTK) GPS: We currently use the Topcon HiPer system to obtain real time geodetic coordinates for our projects. This system allows the user to rove up to 1.5 miles from the base and obtain high precision coordinates on distant monuments and control points. While the advantages of an RTK system are obvious on large projects, it also comes in handy on small surveys, as well. For example, many legal descriptions for small tracts of land are dependant upon the location of section corners, which may be up to one mile from the site. The biggest practical difference between RTK and robotic total stations is that RTK does not require a "line-of-sight" between the base and the rover. RTK is limited by radio range, and because its operates depends on clear reception from satellites, it is also limited to being used in "open" areas where tree canopy coverage and tall buildings are limited.
Static GPS: We currently use 4 Locus GPS receivers. This system is "static", which means the receivers must remain still over the monument for approximated 30 minutes to log data from satellites. The data is then downloaded to an office computer and processed to obtain high precision geodetic coordinates. This system differs from RTK in that coordinates are not obtained in real time, but because it does not rely on radio communications between receivers, it can measure distances of up to 10 miles. This system is most useful for referencing projects to State Plane Coordinates or elevation datums (NGVD29 or NAVD88) when the government set control points are at a great distance from the site.
Contact Information:
George A. Shimp II & Associates, Inc. 3301 DeSoto Blvd., Suite D Palm Harbor, Florida 34689
Phone: (727) 784-5496 Fax: (727) 786-1256
Email: rls2512@aol.com
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