One of the chief reasons for our interconnected world is the space race. Of course, this is seen by many as a divisive power struggle between two world superpowers, but that is only part of the story. As is often the case in human history, our greatest adversity is also responsible for our greatest advancements.
In particular, one of the technologies to come out of this tumultuous time is RTK GPS. These systems rely on satellite information to provide helpful data for surveyors, consumers, governments, military personnel and much more. All across the world, Global Navigation Satellite Systems (GNSS) are proving their worth each and every day.
We can observe this in our daily lives, as terms like GPS have become synonymous with location tracking, cell phone usage and other daily parts of our lives. But what is GPS really? How does it relate to RTK GPS and what exactly is GLONASS? We take a look at these questions and do our best to provide helpful answers and additional information, right down below.
To understand the differences between GPS and GLONASS, it is essential to first understand GNSS. This umbrella term refers to any satellite system (constellation) that belongs to the same country, government, or organization. There are many reasons that different parts of the world chose to make their own constellation (not the least of which was the aforementioned space race).
As a result, North Americans tend to think of GPS as a reference to a type of technology. In reality, however, it is simply the name of the American GNSS constellation. The Global Positioning System (GPS) is the most robust of the current constellations in orbit, but it is still only one of several.
So, if GPS is just one version of a GNSS, what is GLONASS? Well, you may have already guessed, but if not, it is just another GNSS. This one is run by Russia and provides much of the same functionality as the North American version. Though it has slightly fewer satellites in orbit, this amounts to less accuracy, but not necessarily less coverage.
Although both satellite constellations support global positioning, their technical foundations differ in ways that influence surveying performance. GPS relies on a larger satellite network and a specific orbital layout designed for consistent accuracy worldwide. These differences affect signal strength, fix speed, and overall RTK reliability. Choose between constellations or determine when multi-GNSS support is the better option.
When evaluating glonass vs gps for coverage and accuracy, GPS generally leads in precision thanks to its larger satellite network and long-term modernization efforts. GLONASS gives strong performance as well, and its unique orbital placement can outperform GPS at high latitudes or in environments with partial sky obstructions.
In practical RTK surveying, the best results often come from receivers that utilize both constellations simultaneously. Using a multi-constellation setup increases satellite visibility, shortens fix times, and improves reliability in challenging terrain. This is why most modern GPS vs GLONASS comparisons emphasize combined GNSS support rather than relying on a single constellation.
When integrated into an RTK system, both GPS and GLONASS bring unique advantages. GPS provides consistent global accuracy, stable corrections, and highly reliable satellite availability. GLONASS contributes improved coverage in difficult environments, especially where buildings, trees, or terrain reduce visibility. However, both systems have limitations tied to signal geometry, atmospheric conditions, and constellation design. For the most dependable performance, surveyors often use receivers that track both constellations simultaneously. Key considerations include:
Each constellation can be affected differently by local conditions, making multi-GNSS support ideal.
GPS offers stable accuracy, while GLONASS strengthens performance where visibility is limited.
Now that you know the difference between GPS and GLONASS, you may be interested in getting your hands on a GNSS receiver that works with these exciting technologies. Or, perhaps we raised more questions than we provided answers for. In either case, reach out or give us a call and we would be happy to provide you with great service, friendly conversation and knowledgeable solutions for everything surveying!
Bench Mark Equipment & Supplies is your team to trust with all your surveying equipment. We have been providing high-quality surveying equipment to land surveyors, engineers, construction, airborne and resource professionals since 2002. This helps establish ourselves as the go-to team in Calgary, Canada, and the USA. Plus, we provide a wide selection of equipment, including global navigation satellite systems, RTK GPS equipment, GNSS receivers, and more. We strive to provide the highest level of customer care and service for everyone. To speak to one of our team today, call us at 403-286-0333 or email us at [email protected]
