WaveGuide 5 Onboard

The WaveGuide Onboard installation compensates for the vertical motions of the ship, so it measures the waves the ship actually has to endure.

This accurate wave monitoring system is an easy to use, reliable and robust device to measure vessel draft level, wave height and wave period. The sensor is capable of maintaining a high level of precision and accuracy in harsh environmental conditions and is particularly suited to maritime use.

The Onboard wave radar, mostly installed at the helideck, bow or bridge of the ship, measures the distance to the water surface. The distances measured are compensated for the heaving, pitching and rolling motion of the radar. Thanks to a highly sensitive motion sensor is incorporated into the radar unit. The WaveGuide Onboard measures the waves the ship actually has to endure.

The radar measures the distance to the water surface 10 times per second. The radar itself facilitates data acquisition, data processing, data presentation and remote service. Data will be internally stored on the device and distributed over the network. Any device connected to the (private) network can access the web-based user interface.

ATEX certified version.



Heave Range: 2 – 75 m to surface
Accuracy: ± 1 cm 1)
Frequency: 10 Hz
Vessel draft level Accuracy: ± 1 cm 2) 3) 
Processing: 10 sec, 1 min, 5 min or 10 min
Interval: 1 min
Wave height Range: 0 – 60 m
Accuracy: ± 3 cm 
Processing: SWAP 4) (per 20 min data block)
Interval: 1 min
Wave period 5) Range: 1 – 100 s
Accuracy: ± 50 ms 3) 
Processing: SWAP 4) (per 20 min data block)
Interval: 1 min 


Mechanical Dimensions: 217 x 319 x 379 mm (d x w x h)
Weight: 14.4 kg (excl. antenna 2.8 kg)
Material: Chromatized aluminum
Electrical Power: 24 – 65 VDC, 65 – 240 Vac, 8 W
Frequency: 10 GHz (X-band)
Modulation: Triangular FMCW 
Emission: 0.1 mWatt max. (Far below acceptable limits for exposure of the human body)
Environmental Temperature: -40 ºC to 65 ºC
Humidity: 0 – 100 %
Ingress Protection:  IP67
Safety: ATEX, II 1/2 G Ex d [ia Ga] IIB T6 Ga/Gb
Communication Network: 1x Ethernet
Data storage: SD 32 Gb
Optional: External converter to RS232 or RS422 or RS485

1) Valid for a still water surface.
2) For a water surface with waves.
3) The accuracy of the wave parameters is not limited by the radar sensor, yet it is defined by the stochastic nature of sea-surface measurements.
4) SWAP is the Standard Wave Analysis Program, in accordance with the applied standards of the Dutch Ministry of Infrastructure and Environment  and of the International Association of Oil and Gas producers.
5) The wave period is not compensated for the horizontal motion. Hence, for a moving vessel, the sensor measures the wave period as encountered by the vessel.

Dutch company

We are a Dutch company, based in Delft. Since 1996, we develop, manufacture and market the WaveGuide. We are proud that our professional systems are trusted across the industry.

Highly accurate wave radar

Our highly accurate wave radar has proven itself for over 25 years. This easy to use, reliable and robust sensor is particularly suited for the extreme conditions offshore.

Key features

– Highly accurate
– Maintenance free
– Plug and play
– Measuring at 10 Hz
– 0 – 60 m wave height
– Network connected
– Up to 10 years of internal data storage

New features

– Improved heave compensation
– Increased accuracy at high pitching and rolling