38 Years On And Little Has Changed


It has been a while since Mr. Kees van der Vaart registered CT Systems at the chamber of commerce. August 1976 it was to be exact, 38 years ago this month. In the meantime a had lot has happened and a lot has changed, but in a way nothing really has. Effectively the only changes is the progression in technology, that being more computer power and storage, advances in telecommunications and the advent of multiple GNSS systems. But in the meantime we are still building the hardware and software we want to see available in the world, travelling all over the place to help out our customers, and to simply enjoy the work we do.

Just for the fun of it we put our revolutionary ODIN colour video plotter next to our GeoDredge dredging computer. They mark a 30 year difference and light years in technological advances, yet, all-in-all they still do the same job. They provide a revolutionary solution for positioning and navigation making them unique and pioneering for the period in time that they exist.

With many advances on the way we have no other objective to keep on going on for the decades to come, endlessly pushing the envelope with new products and ideas.

Always feel free to drop by for a chat, a coffee or a fried egg! See you soon!

Julian van der Vaart

Posted in News

Real Time Dredging Sonar Trials


The first field test of our new real time dredging sonar system called Multi Dredge is commissioned on the Dutch river Vecht. The new Multi Dredge system consists of multiple survey-grade transducers strategically placed on a dredging vessel. Each transducer is individually controlled and timed by our Viking software and the georeferenced bathymetric data of each transducer is used to upgrade the dredging matrix in real time.

With the use of our Multi Dredge system the dredging vessel simultaneously functions as a survey vessel, saving a considerable amount of time and money in the process.

Spray pontoon with Viking Multi Dredge

Spray pontoon with Viking Multi Dredge

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Viking Tug Management System Mobilisation

Viking Tug Management Installation

Mobilisation of our Viking Tug Management System on the dive support vessel VOS Shine and the tugboat Dutch Pioneer. The Viking Tug Management System enables real time sharing of the anchor plan using a long range telemetry link. The master vessel and the tug will see both vessels on their screen, along with full anchor planning and actual anchor placement.

For more information about the Tug Management System see: Viking Software – TMS module

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GeoDredge installation on a PLM Grab dredger

GeoDredge installation on a PLM Grab dredger of Osinga Baggerwerken B.V. on board of the vessel Zeus.


Osinga Baggerwerken B.V. already had a single position DGPS at the top of the crane,
it is now upgraded to a RTK heading system with an encoder on the hoist and close wire of the grab dredger.

With those encoders it can now tell the height of the bucket as well as the bucket is opened or closed.


The system is using a Trimble RTK GNSS with heading and a mobile VRS correction signal of 06-GPS.

The software on the crane: Viking Dredge with Gridding and Networking Module
The software on the vessel: Viking Navigation with Networking Module and Navionics

Posted in News

A Magnetic survey in Bissendorf Germany

CT Systems did a Magnetic survey in Bissendorf Germany

The area was a forest-field of 100 by 100 meters, we found some reinforced concrete and some other objects.


A plot of the area after post processing.



Magnetic sensor in combination with a Hemisphere DGPS.

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Measurement of the VOS Power and VOS Producer

A measurement of VOS Power for DP1 on a typical Dutch day at the Oranjewerf Amsterdam.



And later the VOS Producer was measured as well for DP1


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  • CT Systems
  • De Wieken 6
    Hippolytushoef1777 HT
    The Netherlands
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