The JLN-720 satellite log provides accurate ship speed and distance right with your fingertip operation. Regardless of weather conditions, the system is capable of providing accurate speed up to an amazing 0.02kn or 0.2% all over the world using JRC’s proven GPS compass technology. On the bridge the system is operated on a color LCD display with touch panel, providing clear and straightforward information.

The processor is built into the antenna which eliminates alignment between antenna and processor, therefore contributing to an easy setup with less error and significantly reduced installation time. This concept also reduces the installation costs as only a single cable is used between antenna and processor unit. Should something interfere with the coverage, the proven antenna design incorporates a layer of air that reduces possible blind spots, allowing for a more precise speed than conventional systems.

  • Highly accurate speed measurement
  • Triaxial vessel speed calculation
  • Intuitive operation
  • BAM compliant alert handling

Price: Contact


Name Satellite log
System GPS satellite
Receive Freq. 1575.42MHz ±1MHz(C/A code)
Speed range (Bow P/S) -99.99∼99.99kn
(Fore/Aft.) -99.99∼99.99kn
(Stern P/S) -99.99∼99.99kn
Distance run range 0∼999999.99NM
Speed accuracy 1% or 0.1kn whichever value is greater
0.2% or 0.02kn whichever value is greater
(5 satellites or more)
Distance accuracy 1% or 0.1NM in each hour whichever value is greater
Speed Indication Integer 2-digit + decimal 2-digit
Display unit Vertical 5″ WVGA with touch panel
Interface port Input IEC 61162-1 ×3
Output IEC 61162-1 ×8
Power supply 100V or 230V AC ±15%,50/60Hz,1Φ
Power consumption 110VA max
Operating temp GPS compass sensor -25∼55℃
Distributor -15∼55℃
Main display -15∼55℃