A GPS survey uses satellite signals to establish precise ground coordinates, allowing surveyors to measure boundaries, elevations, and other essential site features with exceptional accuracy. Because dependable data is vital for construction, land development, engineering, and planning, GPS technology has become a standard method across many project types, improving efficiency, reducing errors, and supporting better decision-making throughout the development process

1. How Does GPS Surveying Work?
A GPS survey uses satellite signals to establish precise ground coordinates, allowing
surveyors to measure boundaries, elevations, and other essential site features with
exceptional accuracy. Because dependable data is vital for construction, land development,
engineering, and planning, GPS technology has become a standard method across many
project types, improving efficiency, reducing errors, and supporting better decision-making
throughout the development process.
Understanding Modern Positioning
Techniques
A surveying professional uses signals from multiple satellites to determine precise ground
positions for accurate mapping and construction. Each satellite transmits its location and the
exact time of the signal. By measuring how long the signal takes to reach the receiver, the
equipment calculates distance to each satellite, enabling the surveyor to determine highly
reliable coordinates for boundaries, elevations, slopes, and other natural or manmade
features, providing essential data for site planning, design, and construction projects.
Satellite Geometry and Accuracy
Signal quality, weather conditions, and the number of satellites within view all influence the
precision an Oklahoma surveyor can achieve. For most boundary and construction needs,
receivers must lock onto at least four satellites. More satellites improve geometric strength
and reduce the likelihood of measurement errors. Satellite geometry, terrain features, and
potential obstructions all play a role in how accurate the final measurements will be.
Components of a GPS Survey System
A dependable GPS survey requires more than just a handheld receiver. Professional-grade
systems include high-sensitivity antennas, data collectors, and processing software designed
for engineering and mapping applications. These tools allow surveyors to collect large
quantities of field data efficiently while maintaining the precision required for design and
construction. Key system elements usually includes:
●​ Base receiver for reference corrections
●​ Rover receiver for mobile field measurements
●​ Radio or cellular link for real-time communication
●​ Post-processing software for refining and validating measurements

2. Survey Methods Used Today
Surveyors choose among several methods depending on the precision required.
High-accuracy positioning often relies on Real-Time Kinematic (RTK) or Post-Processed
Kinematic (PPK) solutions. Each technique provides distinct advantages based on the
project's size, location, and accessibility.
Common Techniques
These methods ensure accurate and efficient results for projects of any size.
●​ RTK: Produces real-time corrected positions with centimeter-level precision
●​ PPK: Processes data after fieldwork to refine accuracy
●​ Static surveying: Collects long-duration measurements for establishing control points
●​ Network RTK: Uses multiple base stations for statewide coverage
How a Land Surveyor Uses GPS in the Field
Before beginning data collection, a land surveyor Tulsa evaluates satellite availability,
obstructions, weather patterns, and site conditions as part of the survey workflow. This
preparation helps ensure stable signal acquisition and reduces the chance of multipath
interference from vegetation, buildings, or nearby structures. On large or uneven job sites,
planning also determines how the surveyor establishes control points and navigates
challenging terrain. Typical field workflow includes:
1.​ Establish or verify a known control point.
2.​ Set up the base station and confirm signal stability.
3.​ Use the rover unit to collect data across the site.
4.​ Validate measurements and record notes about environmental conditions.
5.​ Review the collected information before leaving the field.​
Why Oklahoma Projects Benefit From GPS
Technology
Many regions require accurate land data to manage utilities, roadways, and drainage systems.
An Oklahoma surveyor can collect location information rapidly, even over large acreages or
rugged terrain. This makes GPS technology particularly advantageous in local terrain:
●​ Fewer physical obstacles
●​ Broad sky visibility
●​ Faster data acquisition on large acreages
●​ Reduced need for extensive line-of-sight setups
●​ Improved efficiency in both rural and urban projects​

3. Practical Uses for Surveying Results
As urban areas expand and new neighborhoods emerge, a land surveyor Tulsa can provide
builders, engineers, and property owners with reliable, real-time measurements using GPS
technology. Accurate field data supports grading decisions, utility placement, roadway
design, construction staking, and preparation for site development. Other typical uses are:
●​ Subdivision planning
●​ Right-of-way mapping
●​ Utility coordination
●​ Floodplain and drainage evaluation
●​ Construction layout and earthwork planning​
Reliability Standards for Local Surveying
A certified Oklahoma surveyor follows strict accuracy and documentation standards. This
includes maintaining redundant measurements, verifying satellite geometry, and ensuring
compliance with state and municipal requirements. Thorough field notes, reliable control
points, and validated data checks help guarantee that the final survey meets the expectations
of engineers, builders, and property owners.
Verification Procedures
These steps ensure consistently accurate and reliable survey results.
●​ Cross-checking GPS positions with conventional methods
●​ Reviewing PDOP (Position Dilution of Precision) values
●​ Logging environmental conditions and potential signal disruptions
●​ Confirming coordinate consistency during post-processing​
Reliable Results for Smarter Planning
GPS technology allows surveyors to gather reliable measurements efficiently, even across
challenging or expansive terrain. Sisemore & Associates provides comprehensive surveying
and civil engineering services supported by advanced equipment, experienced professionals,
and a commitment to delivering accurate results. Our team offers boundary surveys,
construction layout, topographic mapping, complete site development support, and more. To
discuss your project, contact us today.