GPS & Grade Control for Heavy Equipment Course

Lesson 1 • How Satellite Positioning Works

Covers the GNSS constellation structure, signal transmission, and trilateration math. Establishes the physics behind every GPS reading operators will use on-site.

Lesson 2 • Coordinate Systems and Datums

Explains geographic vs. projected coordinates, datums, and vertical references. Ensures operators understand why datum mismatches cause real-world elevation errors.

Lesson 3 • Correction Technologies Overview

Introduces SBAS, DGPS, and RTK correction methods and their accuracy tiers. Prepares operators to select the right correction source for a given job requirement.

Lesson 1 • System Cabling and Power Supply

Identifies cable routing, connector types, and power requirements for grade control hardware. Prevents installation errors and helps operators spot wiring faults quickly.

Lesson 2 • In-Cab Display and Control Box

Explains display hardware, interface layouts, and operator input methods. Operators learn to navigate menus, read guidance screens, and adjust settings efficiently.

Lesson 3 • Onboard Sensors and Receivers

Covers GNSS antennas, IMUs, and slope sensors mounted on the machine. Links each sensor's role to the grade control output operators see on the cab display.

Lesson 4 • Base Stations and Reference Networks

Describes fixed base stations, network RTK services, and their role in delivering corrections. Connects infrastructure choices to the accuracy level achievable on the job site.

Lesson 1 • Reading and Interpreting Site Plans

Teaches plan view, cross-section, and profile reading for earthwork projects. Builds the drawing literacy required before any digital model can be created.

Lesson 2 • Control Point Establishment

Covers surveying control points, benchmarks, and site calibration procedures. Accurate control points are the foundation for all subsequent machine positioning on site.

Lesson 3 • Creating Digital Terrain Models

Explains TIN and grid surface model creation from survey point data. Operators understand how surface model quality directly affects blade guidance accuracy.

Lesson 4 • Exporting Files to Machine Systems

Covers file format standards, data transfer methods, and version control for design files. Ensures the correct, current design file is always loaded on the machine.

Lesson 1 • Machine Measurement and Geometry Input

Covers measuring blade width, mast offsets, and pivot points for system configuration. Accurate geometry input is the first step toward reliable automated grade control.

Lesson 2 • Calibration Verification and Documentation

Validates calibration results against known control points and records findings. Documentation creates an audit trail and supports troubleshooting if accuracy degrades later.

Lesson 3 • Slope Sensor and IMU Calibration

Covers static and dynamic calibration of slope sensors and inertial measurement units. Correct IMU calibration prevents roll and pitch errors from corrupting grade output.

Lesson 4 • Blade and Bucket Tip Calibration

Teaches the touch-point and bench calibration methods for blade and bucket tip position. Tip accuracy directly determines whether the machine cuts to the correct design elevation.

Lesson 1 • Reading Guidance Displays During Operation

Explains how to interpret cut/fill indicators, cross-slope readouts, and position arrows while moving. Operators develop the visual scanning habits needed to maintain grade without stopping.

Lesson 2 • Dozer Blade Control Techniques

Covers cut-and-fill pass sequencing, push distance management, and slope control on dozers. Connects dozer-specific machine behaviour to grade control system response.

Lesson 3 • Pre-Shift System Startup Checks

Covers power-on sequence, satellite acquisition, and design file confirmation before work begins. A disciplined startup routine prevents costly rework caused by undetected system faults.

Lesson 4 • Common Operational Errors and Fixes

Identifies blade hunting, elevation drift, and signal loss errors encountered during grading. Operators learn immediate corrective actions to minimise downtime and rework.

Lesson 1 • Machine-Specific Calibration Differences

Highlights calibration steps unique to excavators and scrapers versus graders and dozers. Prevents calibration errors caused by applying the wrong procedure to a different machine type.

Lesson 2 • Slope and Batter Control Techniques

Covers cutting accurate batters, benches, and variable slopes with excavator guidance. Operators apply design surface data to complex slope geometries beyond simple flat grades.

Lesson 3 • Scraper GPS Integration

Explains GPS-based cut depth and fill thickness control for self-propelled and push-pull scrapers. Connects scraper-specific loading and spreading cycles to grade control system feedback.

Lesson 4 • Excavator Geometry and Sensor Layout

Covers boom, arm, and bucket angle sensors plus antenna placement on excavators. Understanding the kinematic chain is essential before any excavator grade control can be trusted.

Lesson 1 • Systematic Fault Diagnosis Process

Introduces a structured divide-and-isolate troubleshooting methodology for grade control faults. A repeatable process reduces diagnostic time and prevents misdiagnosis on the job site.

Lesson 2 • Preventive Maintenance Schedule

Establishes daily, weekly, and monthly maintenance tasks for all grade control components. Preventive maintenance extends hardware life and reduces unplanned downtime on active projects.

Lesson 3 • Sensor and Cable Fault Diagnosis

Identifies failed slope sensors, IMU errors, and cable faults using diagnostic software tools. Sensor faults are the most common hardware failure mode in field grade control systems.

Lesson 4 • GPS Signal and Correction Faults

Covers low satellite count, correction dropout, and multipath errors affecting position quality. Operators learn field tests and antenna repositioning to restore reliable signal reception.

Lesson 1 • High-Precision Subgrade and Paving Control

Covers subgrade tolerance requirements and GPS-guided trimming for paving operations. Tight subgrade accuracy reduces asphalt thickness variation and lowers material costs.

Lesson 2 • Large-Scale Mass Earthwork Management

Applies GPS fleet tracking and cut/fill balance data to optimise mass earthmoving operations. Supervisors use real-time volume data to direct haul routes and reduce over-excavation.

Lesson 3 • As-Built Data Collection and Reporting

Explains machine-generated as-built surface capture, comparison to design, and report generation. As-built data provides contractual proof of grade compliance and supports final payment claims.

Lesson 4 • Road Corridor and Superelevation Control

Covers grading road corridors with variable superelevation, transitions, and vertical curves. Operators use corridor design files to maintain correct cross-fall through complex horizontal alignments.