JLR21/31 GPS Compass

JLR21/31 GPS Compass

JRC JLR21/31 GPS Compass

The JLR-21/31 GPS compass continues the success of its predecessor, reaching a new level of performance and stability with many new features and enhancements.

Features
The JLR-21/31 GPS compass continues the success of its predecessor, reaching a new level of performance and stability with many new features and enhancements. This system is also known as a 3D Dynamic Sensor™, which besides giving heading information, is designed to provide highly accurate information of the movement of the ship in all axis.

 

Heave compensation
The JLR-21/31 has heave functionality built-in as standard. In rough ocean conditions (with high waves), the GPS compass can correct up and down (attitude), movement. This is especially useful for fish finders and sonars on fishing vessels where high waves are compensated for with up to 20 cm accuracy, providing better potential for a profitable catch.

 

High-speed update
JLR-21/31 supports Speed Over Ground (SOG) and Course Over Ground (COG). The position, SOG and COG are updated every 200 milliseconds (which is 5 times faster than previous model JLR-20), delivering high accuracy.

 

High-speed tracking
The GPS compass has its origins as a direction sensing system, but the JLR-21/31 goes far beyond that. The JLR-21 provides a heading accuracy of 0.5° and the JLR-31 has an impressive 0.25° heading accuracy. Heave accuracy is 20 cm or better and roll and pitch for both models is 0.5°. The tracking Rate of Turn (ROT) is 45° per second. On the left a comparison between the previous GPS compass model (JLR-20/30) and the new model (JLR-21/31).

 

Display modes
The JLR-21/31 incorporates many display modes readily available on a highly visible 5.7 inch LCD display. The display is fully dimmable and the keys are also backlit, making it easy to operate in low-light settings on the bridge.

 

Simple operation
The compact design of the JLR-21/31 incorporates an intuitive interface, providing enhanced ergonomics and user friendliness. The logic of the controls and excellent on-screen menus will greatly shorten most users’ learning period.

 

Antenna design
The processor is built into the antenna. Eliminating alignment between antenna and processor found in separate systems, 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 display unit. The outer shell of JRC’s new antenna system has a smooth surface. This slippery exterior makes it almost impossible for birds to perch on the domes or for the antennas to be completely covered in snow. Should something interfere with the coverage, JRC’s proven antenna design incorporates a layer of air that reduces possible blind spots, allowing for a more precise heading than conventional systems.

  • IMO Compliant
    Yes
  • Receiver Type
    Multi-channel all-in-view (12 channels, 1 channel SBAS)
  • Frequency
    1575.42MHz ± 1MHz (C/A code)
  • Direction Accuracy
    0.5° RMS, 0.25° RMS (JLR-31)
  • Display Resolution
    0.1º
  • Resolution Output
    0.1º or 0.01º (selectable)
  • Tracking Rate of Turn
    45º/sec
  • Tracking Acceleration
    1G
  • Roll/pitch Output
    -60º to 60º
  • Startup Time
    Less than 2 minutes (warm start fix)
  • DGPS Input
    RTCM SC-104 version 2.0 (type 1, 2, 9, 16)
  • SBAS Receiver
    Built-in (WAAS/EGNOS/MSAS)
  • RAIM Function
    Built-in
  • Position Accuracy
    12m 2drms (C/A code, HDOP4, SA OFF)
  • 6m 2drms when SBAS corrected
  • 4m 2drms when DGPS corrected (when connected to beacon receiver)
  • Display
    5.7-inch LCD, 320 by 240 pixels
  • Operating Keys & Backlight
    12 keys, LED (display and backlight keys)
  • Dimmer Levels
    4 levels (bright, medium, dark, off)
  • Display Modes
    Compass rose, bow heading, navigation, rate of turn (ROT), water/ground speed, trend graph, calculation, GPS status
  • Output Ports
    5 independent working NMEA0183 ports
  • Transmission Speed
    4800, 9600, 19200, 38400, 57600 bps
  • Output Interval
    20ms, 25ms, 50ms, 100ms, 200ms, 500ms, 1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s, 9s
  • Sentence
    IEC61162/NSK (shared) 5 ports (AD10 output available: 2 of 5 ports)
  • IEC61162 Output
    HDT, THS, ROT, ZDA, GGA, VTG, RMC, GBS, DTM, GSA, GSV, GNS, MSS, GST, GLL, ALR, ATT, HVE
  • Current Data Input
    1 port (CUR, VBW)
  • Alarm Contact Signal
    2 ports (alarm output), 1 port (ACK input)
  • LOG Pulse
    1 port (off, 200p/nm, 400p/nm)
  • Power
    12V to 24 V DC (-10% to 30%)
  • Power Consumption
    12 W (including sensor), 6 W (excluding sensor)
  • Transmission Speed
    4800, 9600, 19200, 38400, 57600 bps
  • Ambient Conditions
    -15° to 55°C (operating), -25° to 70°C (storage)
  • Waterproofing
    PX4 (display), IPX6 (sensor)
JLR21/31 GPS Compass
JRC

JLR21/31 GPS Compass

JRC JLR21/31 GPS Compass