GPS/GNSS Calibration Services

GPS/GNSS Calibration Services from CTPM

Accurate positioning has become essential infrastructure for modern construction, surveying, marine navigation, oil and gas operations, and automotive testing. Commercial GPS and GNSS systems must deliver precise, verifiable positional accuracy to support project layout, quality control, and regulatory documentation across increasingly demanding applications. When GPS/GNSS equipment falls out of calibration, the consequences can include inaccurate positioning data, costly rework, project delays, and compliance failures in industries where precision directly affects safety and project outcomes.

Cal Tec Process Management, backed by the trusted Accredited Labs network, provides ISO/IEC 17025 accredited GPS/GNSS calibration services that deliver the traceable positional accuracy your operations require.

GPS/GNSS Equipment We Calibrate:

We provide traceable SI data with fast service and minimal downtime. GPS Time Standard is also available. We offer precise speed and distance calibrations for automotive testing and proving grounds. Our certification covers all RTK Systems components, including:

Base
Rover
Data Collector
Radios

Don't see your equipment listed here? Contact us for a custom quote.

What is GPS/GNSS Calibration?

GPS/GNSS calibration is the process of verifying and documenting the positional accuracy of commercial GPS and GNSS systems against known reference positions and traceable standards. This service produces detailed positional accuracy data reported in SI units with NIST traceability, providing the documentation needed to meet the quality standards of heavy civil construction, marine, oil and gas, and nuclear plant construction industries.

Calibration covers complete RTK (Real-Time Kinematic) system components, including the base station, rover, data collector, and radios, ensuring that every element of the positioning system contributes to accurate, reliable results. For automotive testing and proving ground applications, precise speed and distance calibrations are also available, along with GPS Time Standard calibration.

Why GPS/GNSS Calibration is Essential for Your Operations

Project Accuracy and Quality Control
Construction layout, grading, and surveying all depend on accurate positioning data. Calibrated GPS/GNSS systems ensure that positional measurements translate into accurate fieldwork, reducing costly rework and layout errors on job sites.

Regulatory Compliance and Industry Standards
Heavy civil, marine, oil and gas, and nuclear construction industries increasingly require documented, traceable positioning accuracy as part of quality management systems. ISO/IEC 17025 accredited calibration with NIST-traceable, SI-unit data provides the documentation these industries demand.

Complete System Verification
Because positioning accuracy depends on every component of an RTK system working together, calibrating the base, rover, data collector, and radios as a complete system provides more meaningful assurance than testing components in isolation.

Automotive Testing and Proving Ground Precision
Speed and distance measurements used in vehicle testing and proving ground applications require precise, calibrated GPS data to ensure valid test results and repeatable performance benchmarking.

Powered by Accredited Labs

As part of the Accredited Labs family, CTPM combines local, personalized service with the resources and expertise of a national calibration network. This partnership ensures consistent quality, technical support, and the capabilities needed to handle your most challenging calibration requirements.

Personalized Customer Service

We believe in building long-term relationships with our customers. That's why we prioritize clear communication, consistency, and reliability. Our team takes time to understand your specific needs, applications, and challenges, so we can provide calibration solutions that support your operational goals and quality objectives.

ISO/IEC 17025 Accreditation

We operate under the rigorous ISO/IEC 17025 standard, which demonstrates our technical competence and quality management system. This internationally recognized accreditation means our calibration results are accurate, reliable, and globally accepted. Our technicians undergo continuous training in evolving technologies and techniques.

Comprehensive Documentation

We go beyond calibration certificates, providing you with the documentation and support your quality system needs. Our detailed reports include measurement data, uncertainty analysis, and recommendations for calibration intervals. We also maintain comprehensive records for easy certificate retrieval and audit support.

Flexible Service Options

We understand that every business has unique operational requirements. That's why when possible we offer on-site calibration services to reduce your downtime. For instruments requiring controlled environments or specialized equipment, our fully equipped laboratories provide optimal calibration conditions.

Fast Turnaround Times

Production schedules don't wait for calibration delays. We prioritize quick turnaround times without compromising quality, helping you maintain operational efficiency while meeting calibration requirements. Our streamlined processes and scheduling ensure your instruments return to service as quickly as possible.

Submit Your Equipment List

Send us a list of the equipment you need calibrated, and we’ll provide a tailored quote with clear pricing—no hidden fees.

Schedule Your Calibration

Choose a convenient time for an in-lab or on-site equipment calibration. Our certified technicians ensure precision and compliance with ISO/IEC 17025 standards.

Stay Compliant & Audit-Ready

Receive detailed calibration reports and certification, giving you peace of mind for audits and operational excellence.

GPS/GNSS Calibration Services