WK 9 LEC NAV 6

Summary

In this lecture for NAV 6, Module 2 Week 9, Second Mate Evaristo Feliciano covers the basic operations of Electronic Information Systems (EIS). The focus is on searching and loading charts, handling chart information, and using the chart panel. He explains how to open the chart panel, find and load specific charts, and discusses chart Autoload, chart fixing mode, and chart scaling mode. Feliciano also touches on setting priorities for different types of charts and using the chart assistant. Additionally, he covers conditional symbolization for safety and navigating hazards, as well as using electronic range and bearing line tools for navigation. The lecture concludes with instructions for a quiz and assignment, emphasizing the importance of understanding EIS functions for maritime navigation.

Takeaways

• 😀 The lecture is part of the NAV 6 course, focusing on Module 2 Week 9, and is led by Second Mate Evaristo Feliciano.
• 📚 The learning outcome is to demonstrate the basic standard function of the Electronic Information System (EIS), continuing from the previous week's topic.
• 🗺️ The lecture discusses the process of searching for and loading charts, which is a fundamental operation in navigation systems.
• 🔍 To open the chart panel, select the appropriate line from the task list menu on the control panel, which then allows for searching and loading of charts.
• 📈 Charts can be searched by entering a chart number, and if no exact match is found, a partial match or 'no chart found' message will be displayed.
• 📑 Once a chart is selected, details such as chart number, scale, original scale, issue date, last correction, and format are displayed.
• 🔄 The chart panel's right-hand part includes settings for chart autoload, chart fixing mode, and chart scaling mode, which are crucial for navigational accuracy.
• 🛠️ The lecture also covers the use of ENC (Electronic Navigational Chart) and DNC (Digital Navigational Chart), with ENC being the standard for most commercial vessels and DNC used primarily by military ships.
• 🔄 The 'Auto scale' feature loads the chart at its original scale, whereas turning it off allows for manual selection of the scale ratio.
• 📊 Conditional symbolization settings are discussed, which determine the visibility of certain objects like isolated rocks based on safety contour settings.
• 📍 The use of Electronic Range and Bearing Line (ERBL) is explained, which can be activated and offset from the vessel to assist in navigation, particularly in channeling.

Q & A

What is the main topic of the lecture for NAV 6 Module 2 Week 9?

The main topic of the lecture is the basic standard function of ECDIS (Electronic Chart Display and Information System) as a continuation from the previous week's topic.

How do you open the chart panel in ECDIS?

You open the chart panel by selecting the appropriate line of the task list menu on the control panel.

What is the purpose of the tab in the left part of the chart panel?

The tab in the left part of the chart panel is used to switch between the complete list or back position, depending on which chart is required to be found.

What happens when you select a chart number and press enter?

When you select a chart number and press enter, the chart details such as chart number, scale, original scale, issue date, last correction, and format will be displayed.

What does the message 'No chart found' or 'Partial match found' indicate?

The message 'No chart found' indicates that no chart matches the entered number. 'Partial match found' means a group of charts has been found that starts with the entered character.

How can you load a chart in ECDIS?

You can load a chart by typing the chart number, highlighting it, and then pressing the 'Load Chart' button, which will display the chart in the chart area.

What is the function of the 'Chart Autoload' button in the General page of the chart panel?

The 'Chart Autoload' button is used to turn on the chart autoload mode, which automatically loads the largest scale chart available.

What does the 'Chart Fixing Mode' do in ECDIS?

The 'Chart Fixing Mode' keeps the chart fixed until the loading mode is switched off, meaning the chart remains loaded even if the vessel moves or another chart is manually loaded.

What is the difference between 'Auto Scale' and 'Off' in the chart scaling mode?

With 'Auto Scale' on, the chart is loaded on its original scale. When 'Off', the chart is loaded on the screen's current scale, maintaining the same scale as the previous chart.

What is the purpose of the 'Priority Chart' setting?

The 'Priority Chart' setting determines which type of chart to load first, such as ENC (Electronic Navigational Chart), DNC (Digital Navigational Chart), or HCF (Hydrographic Chart Raster Format).

How does the 'Conditional Symbolization' feature work in ECDIS?

Conditional Symbolization controls the display of certain objects, such as isolated rocks, based on safety contour settings. If an object is within the safety contour, it may not be displayed to prevent the vessel from entering a shallow area.

What is the Electronic Range and Bearing Line (ERBL) and how is it used?

The Electronic Range and Bearing Line (ERBL) is a tool used to measure the direction and distance from the vessel to a point. It can be activated and used to display information about the range and bearing on the ECDIS.