Highly accurate speed and distance log for high-mileage trips.
IMO MSC.96(72)-compliant Doppler Speed Log; compatible with ships above 300 GT.
Measures ship speeds within a range of 0.03kn or 0.3%*with greatly improved ship speed
tracking to assist with precise navigation during berthing.
Equipped with proprietary bubble detection, which informs when speed accuracy is
reduced due to bubble contact.
Color LCD display model with touch panel for improved night visibility is also available.
Also available in a three-unit model, which provides smaller ships with the same
exceptional speed tracking capability.
The JLN-740 series is a Doppler Speed Log compliant with the IMO MSC.96(72) standard, required on all internationally-voyaging ships exceeding 300 GT. Boasting never-before-seen accuracy for speed measurement, the JLN-740 is also installed with our company's proprietary bubble detection, which informs you when measurement accuracy is impaired due to air bubble contact. A model featuring color LCD touch panels for the main and sub displays, allowing you to view important information and adjust brightness in all displays from one location, is also available.
Precise Ship Speed Tracking
The JLN-740 series utilizes digital signal processing, which, coupled with optimizations to existing speed measurement waveforms and the reliability of ship bottom mounting, has resulted in water speed measurement with accuracy up to 0.03kn or 0.3% in all models*