Demystifying Public RTK Networks

RTK, or Real-Time Kinematics, is a technology that offers unparalleled precision in positioning, typically accurate to within a couple of centimeters. This level of accuracy, often referred to as "survey-grade," has traditionally been reserved for specialized applications due to the high cost and complexity of the required equipment. Historically, users needed to set up and maintain their own base stations to utilize RTK. 

Fortunately, technological advancements and increased government investment have made RTK more accessible. Many government agencies have established public RTK base stations, offering users the ability to tap into this precise positioning data with minimal setup. By leveraging these networks, individuals and businesses can now enjoy the benefits of RTK without the significant upfront costs. 

The Challenge of Public RTNs

While the potential of RTK is exciting, utilizing public real-time networks (RTNs) has its hurdles. These networks, often managed by state departments, vary widely in terms of availability, coverage, and the type of correction data they provide. This inconsistency makes choosing the right network for your project a complex task, especially when working across different states. Additionally, the performance of these networks can be influenced by your location and the type of GPS receiver you use.

A New Resource to Navigate the RTN Landscape

To address the lack of reliable information about public RTN availability, Bad Elf developed a web app. This interactive tool, built with ArcGIS Experience Builder, provides a clear visual overview of states offering public RTNs. It highlights networks that are free to use and those that support Multi-Signal Messages (MSM), a critical feature for modern receivers like the Bad Elf Flex Mini.

The app also offers practical tools to help you plan your project. You can easily access network websites and pre-configured profiles for the Bad Elf NTRIP client directly from the map. Plus, it displays the location of base stations and lets you measure baseline distances to assess potential accuracy, as more error is introduced with greater distances from the nearest base station.

RTK: More Than Just RTNs

While RTNs have made RTK more accessible, traditional base/rover setups still have their place. For projects requiring the highest accuracy or operating in areas with limited cellular coverage, a base/rover system might be the best option.

By providing a comprehensive resource and valuable insights, Bad Elf is committed to helping you harness the full potential of RTK technology.

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