Better RTK Performance in Challenging Environments: Inside Our Latest Firmware Upgrade

RTK positioning performs exceptionally well in open-sky environments. However, real-world surveying is rarely that simple.

Surveyors often work under tree canopies, between buildings and in other frequently obstructed environments. In these conditions, satellite visibility can be limited and signal quality can degrade, observations may change rapidly, and maintaining a reliable fixed solution becomes more challenging.

To address these common field scenarios, our latest firmware introduces a dedicated RTK algorithm upgrade, designed to improve ambiguity resolution, fixed-solution stability, and error detection in challenging environments.

What Has Been Improved?

The latest RTK engine introduces three key improvements:

• Multi-Engine Positioning
• Enhanced Multi-Frequency Processing
• Comprehensive Fixed-Solution Validation

Together, these improvements create a more robust process for achieving and maintaining reliable RTK fixed solutions.

1. Multi-Engine Positioning for More Reliable Ambiguity Fixing

The new RTK engine uses multiple positioning engines, each with different processing strategies.

Rather than relying on a single solution strategy, the engines work together across different stages of RTK processing, including:

• Ambiguity fixing
• Ambiguity search
• Fixed-solution validation
• Fixed-solution maintenance

This multi-engine approach improves the efficiency of ambiguity fixing while strengthening the ability to maintain a fixed solution when satellite observations change.

It also provides stronger error detection and correction, helping reduce the risk of unreliable fixed solutions in challenging environments.

2. Enhanced Multi-Frequency Processing

Modern GNSS receivers can provide observations across multiple frequencies. The latest RTK engine makes better use of this information throughout the ambiguity-fixing process.

Multi-frequency observations are now more deeply integrated into fixed-solution verification, providing additional information to evaluate whether a solution is reliable.

At the same time, the system takes advantage of the redundant information available across multiple frequencies to improve fixed-solution continuity.

The result is a more reliable and stable RTK solution, particularly when signal conditions change rapidly.

3. Comprehensive Fixed-Solution Validation

A reliable fixed solution is not simply about achieving a fix—it is also about knowing that the fix can be trusted.

The new RTK engine introduces a more comprehensive validation strategy that evaluates the fixed solution from multiple dimensions.

It makes full use of:

• Pseudorange observations
• Carrier-phase observations
• Multi-frequency combinations
• Prior position information
• Atmospheric information

The validation process covers the entire RTK workflow—from initial ambiguity fixing to fixed-solution maintenance.

By progressively checking the solution from coarse to fine levels, the system can identify and correct potential errors earlier, significantly improving the reliability of the final fixed solution.

Built for Real-World Surveying

The latest algorithm upgrade is specifically designed for challenging field conditions where satellite visibility is frequently obstructed or signal quality changes rapidly.

The improved RTK engine works to deliver faster fixing, stronger fixed-solution stability, and greater positioning reliability.

For surveyors, this means less waiting, fewer interruptions, and more time spent collecting reliable data in the field.

Upgrade to the Latest Firmware

Experience the latest improvements in RTK performance with our new firmware.

Download the latest firmware [GNSS Receiver Firmware v630AM(K8)]  and upgrade your receiver today.