JRC JLN-550 Doppler Sonar Dual Axis Speed Log


JRC’s JLN 550 Doppler Sonar Dual Axis Speed Log provides ship speed information with higher stability in dual frequency mode.  The lower ultrasonic frequency measures ground speed & the higher ultrasonic frequency calculates the ship’s speed against water with a minimized effect of aeration.  Compact transducer enables bow installation.

Key Features

  • Reduced error with ultrasonic beam fore & aft directions
  • Doppler measurement ensures accurate & stable speed data in rough conditions.
  • Downsized transducer (though dual frequency) smaller than conventional
  • High visibility display with multiple modes
  • Easy to interface (2nd display, smaller remote displays, send data to Radar & ECDIS)
  • GPS connectivity enhances speed data & accurate positioning
  • Optional unique online maintenance for remote trouble-shooting & monitoring

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