Q: How often are CM93 V2 charts updated? A: CM93 V2 charts are regularly updated to ensure that they remain accurate and up-to-date. The frequency of updates may vary depending on the region and the chart type.
What are you using? (Windows, Mac, Linux, or Android?) What version of OpenCPN do you have installed? Are you getting any specific error messages during setup?
A robust navigation strategy should include at least two independent chart sources (for example, updated NOAA ENC charts plus official S63 charts). This provides redundancy and allows cross-referencing.
Unlike official S57 or encrypted S63 Electronic Navigational Charts (ENCs), CM93 version 2 operates on a specific database architecture. The File Structure
Before we dive into the download and install process, it’s critical to understand what you’re dealing with.