SPEED LOG

Doppler Sonar (JLN-550)

The JLN-550 Doppler Sonar is designed to provide ship speed information with higher stability in
the dual frequency modes; one using a lower ultrasonic frequency that is adequate to measure the ship’s speed against the ground up to larger depths and the other using a higher ultrasonic
frequency that allows the ship’s speed against the water to be measured even in water with tiny
bubbles. The transducer is designed for dual-frequency transmission, but its size is smaller than
the conventional models.

     

DOPPLER CURRENT METER (JLN-628)

Quick acquisition of tidal current and fishfinding information.
Improved functions and features, with space saving design
support efficient fishing operations.
1- Four-directional Fish Echoes Multi-display CRT
2- Simultaneous Display of Fish Echoes and Tidal Current
3- Simultaneous Display of Current Directions and Ship Speed
 
 

 
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