Huibert-Jan Lekkerkerk is a contributing editor and author of other publications on GNSS and Hydrography and principal Hydrography lecturer at Skilltrade. He is also a technical manager at the Dutch government. He has worked as client representative on projects such as Maasvlakte 2 and the Ketelmeer environmental dredging project.


With or Without You? – Analysis of a Galileo Outage

“On Tuesday, 18 July 2019, technical weather is forecast as I get into my car on my way to an important GNSS verification test. Yesterday I received a short e-mail from the local reseller, informing me that Galileo is off air. Should the verification go ahead or not?” In this new column... (read more)