JLN-720 Satellite Speed Log
JLN-720GPS-based satellite speed log using C/A code reception at 1575.42 MHz. Provides speed over ground in bow, stern, port, and starboard directions with enhanced accuracy of 0.2% or 0.02 knots with 5+ satellites. Compliant with SDME standards for ships of 50,000 GT and above.
Technical specifications
- Measurement Method
- GPS satellite (C/A code)
- Frequency
- 1575.42 ± 1MHz
- Speed Range
- -99.99 to 99.99knots
- Speed Accuracy (standard)
- 1% or 0.1 knot
- Speed Accuracy (enhanced, 5+ sats)
- 0.2% or 0.02 knot
- Distance Accuracy
- 1% or 0.1 NM per hour
- Display
- 5-inch WVGA color LCD, vertical, touch panel
- Weight (GPS Compass Sensor NNN-21)
- 5.9kg
- Weight (Main Display NWZ-510SDG)
- 1.2kg
- Power Supply
- 100 / 230 VAC ± 15%, 50/60 Hz
- Power Consumption
- 110VA
- Temperature Range (GPS sensor)
- -25 to +55C
- Temperature Range (display)
- -15 to +55C
Certifications
- SOLAS
Data source
All data sourced from jrc.co.jp
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