PRE OWNED JRC J NAV 500 JRC J NAV 500 MARINE GPS

The JRC JNAV-500 features a 5.7-inch high-contrast monochrome LCD that displays position, speed, and heading data with exceptional clarity. Designed to meet strict SOLAS requirements, it is built for 24/7 operation in harsh maritime environments. The unit is known for its "User-Friendly" interface, featuring a large numerical display and a dedicated keypad for quick access to critical navigation functions.

This navigator is a core component of many integrated bridge systems. It is equipped with multiple NMEA 0183 output ports, allowing it to provide stable position and timing data to Radars, AIS, ECDIS, and GMDSS consoles. Its high-sensitivity 12-channel receiver ensures a fast "Time to First Fix" (TTFF) and maintains a stable bottom lock even in challenging satellite geometry.

TECHNICAL SPECIFICATIONS

-- Model: JNAV-500 (NWZ-4570)

-- Manufacturer: JRC (Japan Radio Co., Ltd.)

-- Display: 5.7-inch Monochrome STN LCD

-- Resolution: 320 x 240 Pixels

-- Receiver Type: 12-channel parallel, SBAS ready

-- Position Accuracy: GPS: 13m (95%), DGPS: 5m (with optional receiver)

-- Storage: 2,000 Waypoints, 2,000 Track Points, 100 Routes

-- Interfaces: 3x NMEA 0183 Outputs, 1x NMEA Input, RS-232C

-- Supply Voltage: 12V to 24V DC

-- Power Consumption: Less than 10 W

-- Waterproofing: IPX5 (Display Unit)

-- Compliance: IMO MSC.112(73), IEC 61108-1

KEY FEATURES & APPLICATIONS

-- Multi-Display Mode: Features various screen layouts including Plotter, Steer, Highway, and Digital data, allowing the navigator to choose the most relevant view for the current voyage stage.

-- Robust Data Integration: Simultaneously feeds position data to multiple bridge systems via three dedicated NMEA output ports, ensuring synchronization across the vessel's electronics suite.

-- Man Overboard (MOB) Function: A dedicated, easy-to-reach MOB button provides an instantaneous position save and navigational guidance back to the event location.

-- SBAS Capability: Utilizes WAAS, EGNOS, or MSAS signals to enhance position accuracy, providing more reliable data for coastal navigation.

-- Self-Diagnostic Tools: Includes a built-in testing system that monitors satellite health and internal hardware integrity, providing peace of mind during long ocean transits.

-- Compact Design: The NWZ-4570 display unit is designed for easy flush-mounting in modern bridge consoles or bracket-mounting in older wheelhouses.

TYPICAL CONDITION (USED/REFURBISHED)

Our refurbished JNAV-500 units from the Alang yards undergo a thorough multi-point technical restoration. We focus on the LCD contrast and backlight consistency, ensuring the monochrome screen is sharp and readable. The internal backup battery is checked and replaced to safeguard your routes and waypoints. We also perform a signal test on the NMEA 0183 output buffers to ensure clean data delivery to your AIS and Radar. Every unit is supplied with a factory-reset configuration and a technical test report from our Bhavnagar facility.

COMPATIBLE BRAND MODELS:

JRC JNAV-500, JRC NWZ-4570, JRC JAN-901B, Furuno GP-150, Furuno GP-90, Furuno GP-170, Koden KGP-920, Samyung GP-290, Tokyo Keiki G-1.

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