{"id":3131,"date":"2026-07-24T15:02:29","date_gmt":"2026-07-24T07:02:29","guid":{"rendered":"http:\/\/www.whiskyharborhub.com\/blog\/?p=3131"},"modified":"2026-07-24T15:02:29","modified_gmt":"2026-07-24T07:02:29","slug":"how-does-gnss-rtk-work-in-areas-with-high-electromagnetic-interference-46ae-5d43ad","status":"publish","type":"post","link":"http:\/\/www.whiskyharborhub.com\/blog\/2026\/07\/24\/how-does-gnss-rtk-work-in-areas-with-high-electromagnetic-interference-46ae-5d43ad\/","title":{"rendered":"How does GNSS RTK work in areas with high electromagnetic interference?"},"content":{"rendered":"

Hey there, fellow tech enthusiasts and professionals in the geospatial field! As a supplier of GNSS RTK equipment, I’ve had my fair share of experiences dealing with the unique challenges that come with using this tech in different environments. One of the most tricky situations we often encounter is working in areas with high electromagnetic interference (EMI). So, today, I’m gonna break down how GNSS RTK works in these tough spots and what we’re doing to make it work better. GNSS RTK<\/a><\/p>\n

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First off, let’s quickly go over what GNSS RTK is. GNSS stands for Global Navigation Satellite System, which includes well – known systems like GPS (USA), GLONASS (Russia), Galileo (EU), and BeiDou (China). RTK, on the other hand, stands for Real – Time Kinematic. It’s a technique that uses carrier – phase measurements from the satellites to provide centimeter – level positioning accuracy in real – time.<\/p>\n

In a normal situation, a GNSS RTK system consists of a base station and a rover. The base station has a known position, and it receives signals from multiple satellites. It then calculates the error in the satellite signals and sends this correction data to the rover via radio or cellular communication. The rover uses this correction data to adjust its own position calculations, resulting in a highly accurate measurement.<\/p>\n

But when we move into areas with high EMI, things get a whole lot more complicated. EMI can come from a bunch of sources, like power lines, radio transmitters, industrial equipment, and even solar flares. These electromagnetic waves can interfere with the weak signals that the GNSS RTK receivers are trying to pick up from the satellites.<\/p>\n

One of the main ways EMI affects GNSS RTK is by degrading the signal – to – noise ratio (SNR) of the satellite signals. SNR is basically a measure of how strong the desired signal (the satellite signal) is compared to the background noise (the interference). When the EMI is high, the background noise increases, and it becomes harder for the receiver to distinguish the satellite signals. This can lead to loss of signal lock, which means the receiver can no longer track the satellite properly.<\/p>\n

Another problem is that EMI can introduce errors in the phase measurements. Since RTK relies on precise carrier – phase measurements to calculate the position, any error in these measurements can lead to significant inaccuracies in the final position determination. For example, if the EMI causes a small shift in the phase of the satellite signal, the rover’s position calculation could be off by several centimeters or even meters.<\/p>\n

So, how do we get around these issues? Well, at our company, we’ve been working on a few different strategies.<\/p>\n

Firstly, we’ve been investing in improving the antenna design of our GNSS RTK receivers. A good antenna can help to filter out some of the unwanted electromagnetic noise. We’ve developed antennas with better gain and directivity, which means they can pick up the satellite signals more effectively while reducing the impact of EMI from other directions.<\/p>\n

Secondly, we’ve enhanced the receiver’s internal signal processing algorithms. These algorithms are designed to analyze the received signals and identify and reject any interference. For example, some of our algorithms use adaptive filtering techniques to adjust the filter parameters in real – time based on the characteristics of the noise. This way, the receiver can adapt to different EMI conditions and maintain a stable signal lock.<\/p>\n

We’ve also been working on improving the communication link between the base station and the rover. In high – EMI areas, the radio signals used for data transmission can also be affected. So, we’re using more robust communication protocols and higher – frequency bands, which are generally less susceptible to interference. Additionally, we’ve incorporated error – correction mechanisms into the communication, so that even if some data is lost due to interference, the rover can still recover the necessary correction information.<\/p>\n

Another important aspect is the software that comes with our GNSS RTK equipment. Our software has built – in features for detecting and compensating for EMI – related errors. For example, it can use historical data and statistical analysis to estimate the magnitude and direction of the interference, and then apply appropriate corrections to the position calculations.<\/p>\n

In practical applications, we’ve seen some really positive results. Our customers who operate in areas with high EMI, such as near large industrial plants or in urban canyons, have reported that our GNSS RTK systems are able to maintain high – precision positioning more reliably compared to other products on the market.<\/p>\n

However, we know that there’s always room for improvement. We’re constantly conducting research and development to further enhance the performance of our systems in high – EMI environments. We’re also working closely with our customers to understand their specific needs and challenges, so that we can tailor our solutions to their requirements.<\/p>\n

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If you’re in the market for a GNSS RTK system and you’re worried about working in areas with high electromagnetic interference, we’d love to have a chat with you. We’re confident that our products and expertise can provide you with the reliable and accurate positioning solutions you need. Whether you’re in construction, surveying, agriculture, or any other field that requires precise geospatial data, our team is ready to help you find the best fit for your project. So, don’t hesitate to reach out and start a discussion about your requirements. We’re looking forward to hearing from you and helping you take on those challenging high – EMI environments with ease.<\/p>\n

Represented Brands<\/a> References<\/p>\n