: CM93 datasets vary by definition depending on the source edition.
OpenCPN makes the installation of CM93 charts straightforward. Step-by-Step Installation: Launch the software.
: The entire global catalog requires less than 2 GB of storage space.
OpenCPN recognizes CM93 charts if placed in its chart directories and index updated. cm93 v2 charts download install
This article will guide you through understanding what CM93 v2 is, where to obtain them legally, and how to install them on your navigation system. 1. What are CM93 v2 Charts?
Once you have the extracted CM93 folder on your computer, follow these steps to load them: Installing Charts - OpenCPN 30 Dec 2024 —
This guide provides a comprehensive overview of the , focusing on how to find, download, and install them for use with marine navigation software. CM93 v2 Charts: Complete Guide to Download and Install : CM93 datasets vary by definition depending on
: Objects like buoys, depths, and coastlines are stored as data layers, allowing you to zoom in without losing clarity.
For users who maintain multiple chart sources (official ENC charts, CM93 v2, o-charts, and others), OpenCPN’s chart groups feature allows you to organize charts by region or priority. A common recommendation is to keep CM93 v2 charts in a separate chart group from newer official charts, to avoid conflicts and simplify management.
Here is everything you need to know to find, install, and optimize CM93 v2 charts on your navigation system. What are CM93 v2 Charts? : The entire global catalog requires less than
Create a new folder, such as C:\CM93_Combined\ , and copy the contents of all three parts into it, overwriting or merging as needed. Then add this combined directory to OpenCPN.
CM93 v2 charts are encrypted with a proprietary C-Map key. OpenCPN includes a reverse-engineered decoder, but your chart set might need a specific CM93_Key.txt file.
| Folder | Coverage Area | Typical Scale | |--------|---------------|----------------| | Z | 40° × 40° | ~1:3,000,000 | | A | 20° × 20° | ~1:1,000,000 | | B | 10° × 10° | ~1:200,000 | | C | 4° × 4° | ~1:100,000 | | D | 1° × 1° | ~1:60,000 | | E | 20′ × 20′ | ~1:12,000 | | F | 5′ × 5′ | ~1:6,000 | | G | 20″ × 20″ | ~1:3,500 |
If you are using MaxSea or TimeZero, the installation process is slightly different: