The JRC JLR-7700MK2 GPS Navigator is a core component of a vessel’s integrated bridge system. When paired with the DGPS Sensor NNN-4331 and the active KE83003 Antenna, it transforms into a high-accuracy differential GPS (DGPS) system, receiving corrections for positional accuracy within 2-5 meters. This reliability is critical for safe navigation in congested waterways, during poor visibility, or when executing precise maneuvers.
Key Features & Benefits:
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High-Accuracy DGPS Operation: The included NNN-4331 Sensor processes signals from satellite-based augmentation systems (SBAS) like WAAS, EGNOS, or MSAS, providing differential corrections to the GPS fix for unmatched reliability.
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Rugged & Reliable Display Unit: The main JLR-7700MK2 unit features a sunlight-readable CRT (Cathode Ray Tube) display, renowned for its clear visibility in all lighting conditions and long operational life.
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Comprehensive Navigation Data: Displays essential information including Lat/Long, Speed Over Ground (SOG), Course Over Ground (COG), heading, cross-track error, and time to waypoint.
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Dedicated High-Performance Antenna: The KE83003 is a specially designed active GPS/DGPS antenna, ensuring strong signal reception even in challenging marine environments.
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NMEA 0183 Output: Easily integrates with other bridge equipment such as radar, AIS, echo sounders, and gyrocompasses, sharing precise positional data.
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Built for the Marine Environment: All components are built to withstand saltwater spray, vibration, and humidity, meeting stringent marine standards.
System Components :
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JRC JLR-7700MK2 GPS Navigator Main Unit – The display and control head.
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JRC NNN-4331 DGPS Sensor Module – The brain that calculates the differential correction.
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JRC KE83003 GPS/DGPS Active Antenna – The antenna with integrated pre-amplifier.
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Interconnecting Cables .
Target Vessels & Applications:
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Commercial Fishing Vessels
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Workboats & Patrol Boats
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Tugs & Barges
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Ferries
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Large Yachts & Research Vessels
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As a primary or backup GPS system for any vessel requiring IMO-compliant equipment.
Technical Specifications :
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Position Accuracy: DGPS Mode: 2-5m (95% typical), GPS Only: <15m.
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Display: 8-inch CRT.
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Input Voltage: 24V DC (standard marine).
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Output: Standard NMEA 0183 sentences (GGA, GLL, RMC, etc.).
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Channels: Parallel tracking multi-channel receiver.
