![]() ![]() This data can be received via an UHF radio link, Internet connection (NTRIP) or a cellular modem. When using RTK (Real Time Kinematic), the correction data is processes in real-time. Before you can import this data, we will explain in the following paragraphs how PPK works and what steps needs to be taken to get to a PPK correction file which can be used in Hydromagic. This functionality can be found under the miscellaneous tools window in the Sounding Generation Wizard. Since version 9.0, Hydromagic offers functionality to merge your survey data with PPK correction files to get a sub-centimeter accurate bathymetric survey. This might be useful, for example when you are surveying at a remote area without cellular coverage to get your RTCM correction data in. In cases where you need sub-centimeter accuracy, and you do not have direct access to a RTK base station, you can use PPK (Post Processing Kinematic) to (post)process your position data with base station observation data. How to perform a PPK survey using Hydromagic
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