JRC JAN-7201, JAN-9201

JRC JAN-7201/JAN-9201 ECDIS Quick Reference Guide for Mariners

Essential Instructions for Electronic Chart Display and Information Systems

1. Introduction

This guide serves as a quick reference for mariners utilizing the JRC JAN-7201 and JAN-9201 Electronic Chart Display and Information Systems (ECDIS). It is designed to provide concise instructions and visual aids for efficient operation of these systems, covering fundamental functions, navigation tools, and system configurations. The content is presented in a tabular format with graphic reproductions of ECDIS screenshots to facilitate understanding.

The guide is part of a series aimed at supporting mariners at various stages of their maritime training and careers, offering specific guidance for different ECDIS manufacturers.

Cover of the JRC JAN-7201/JAN-9201 ECDIS Quick Reference Guide, showing the title, JRC brand, and model numbers against a map background.

Figure 1: Cover of the JRC JAN-7201/JAN-9201 ECDIS Quick Reference Guide. This image displays the guide's title, the JRC brand logo, and the specific model numbers JAN-7201/JAN-9201, set against a background resembling a nautical chart.

2. Key ECDIS Menu Functions

Understanding the primary menu functions is crucial for effective ECDIS operation. This section outlines the essential menu items and their purposes.

  • Chart Management: Accessing and updating electronic navigational charts (ENCs).
  • Route Management: Creating, editing, and saving routes.
  • Sensor Management: Configuring and monitoring connected navigation sensors (GPS, gyro, speed log).
  • Display Settings: Customizing the presentation of chart information and system data.
  • Alarm Management: Reviewing and acknowledging system alarms and warnings.

3. Main Display Overview

The main display provides the primary interface for navigation. Key elements include:

  • Chart Area: The central part of the screen displaying the electronic chart.
  • Conning Information: Real-time navigation data such as own ship's position, speed, course, and heading.
  • Information Panel: Displays details about selected objects, alarms, and system status.
  • Toolbars: Quick access to frequently used functions like zoom, pan, and measurement tools.

4. Navigation Tools

The JRC ECDIS systems offer various tools to aid in safe and efficient navigation.

  • Electronic Bearing Line (EBL) and Variable Range Marker (VRM): Used for target bearing and range measurements.
  • Parallel Index Lines: Assists in maintaining a safe distance from hazards or shorelines.
  • Guard Zones: Configurable areas that trigger alarms if an object enters or exits them.
  • Trial Maneuver: Simulates ship movements for planning and assessing potential actions.

5. Chart Display Settings

Customizing chart display settings enhances situational awareness and reduces clutter.

  • Display Base: Shows essential navigation features.
  • Standard Display: Includes additional information for safe navigation.
  • All Information Display: Presents all available chart data.
  • Safety Contour: Defines the minimum safe depth for the vessel.
  • Shallow Contour: Highlights areas of shallow water.
  • Deep Contour: Indicates areas of deep water.
  • User-Defined Display: Allows mariners to select specific features to be displayed.

6. Route Planning

Effective route planning is critical for safe passage. The JRC ECDIS facilitates this process through:

  • Waypoint Creation: Defining specific points along the intended route.
  • Route Editing: Modifying existing routes, including adding, deleting, or moving waypoints.
  • Safety Check: Automatically checking the planned route against chart data for potential hazards, shallow waters, and restricted areas.
  • Alternative Routes: Storing and managing multiple route options.

7. Route Monitoring

Once a route is planned and activated, continuous monitoring is essential.

  • Cross Track Error (XTE): Displays the vessel's deviation from the planned track.
  • Waypoint Approach Alarms: Notifies the mariner when approaching a waypoint.
  • Look-Ahead Function: Provides an early warning of potential hazards along the planned route.
  • Track History: Records the vessel's actual track for review and analysis.

8. System Settings

Configuration of system settings ensures optimal performance and compliance.

  • User Profiles: Customizing settings for individual mariners.
  • Data Logging: Managing the recording of navigation data.
  • Software Updates: Procedures for updating the ECDIS software.
  • Sensor Calibration: Adjusting and verifying the accuracy of connected sensors.

9. Important Notes

This section is provided for mariners to record specific operational details, custom settings, or critical observations pertinent to their use of the JRC JAN-7201/JAN-9201 ECDIS. It is recommended to document any unique configurations or procedures adopted for specific voyages or vessel requirements.

  • Date:
  • Note:
  • Reference:

10. Specifications

Key technical details for the JRC JAN-7201/JAN-9201 ECDIS Quick Reference Guide:

  • Publisher: Witherby
  • Publication Date: March 1, 2022
  • Language: English
  • Print Length: 29 pages
  • ISBN-10: 1914992571
  • ISBN-13: 978-1914992575
  • Item Weight: 2 pounds
  • Reading Age: 18 years and up

11. Warranty and Support

For specific warranty information regarding the JRC JAN-7201/JAN-9201 ECDIS units, please refer to the official documentation provided with the hardware or contact JRC customer support directly. This quick reference guide itself does not carry a separate warranty.

For technical support related to the JRC ECDIS systems, please consult your vessel's equipment manuals or contact authorized JRC service centers. Publisher support for this guide is limited to content accuracy and updates.

© 2022 Witherby. All rights reserved. This guide is for informational purposes only.