Convert SL2 to SL3

Understanding SL2 and SL3 file formats

SL2 and SL3 are proprietary file formats used by Chirp SonarLog devices and software, primarily for storing sonar log data. SL2 is an older format, while SL3 is the newer version, offering improved data structure, compatibility, and support for advanced sonar features. Upgrading from SL2 to SL3 ensures better performance and compatibility with the latest Lowrance, Simrad, and B&G devices.

Why convert SL2 to SL3?

Converting SL2 files to SL3 is essential for users who want to utilize the latest features in modern sonar devices and software. SL3 files support enhanced imaging, more detailed data, and are required for some advanced post-processing and mapping tools.

How to convert SL2 to SL3

Currently, the most reliable way to convert SL2 files to SL3 is by using the official Lowrance SonarViewer or Insight Planner software. These tools are designed to work with sonar log files and offer conversion capabilities.

• Download and install Lowrance SonarViewer from the official Lowrance website.
• Open the software and use File → Open to load your SL2 file.
• Navigate to File → Export or File → Save As and select SL3 as the output format.
• Save the converted file to your desired location.

Alternatively, Insight Planner by Navico also supports SL2 to SL3 conversion with similar steps.

Best software for SL2 to SL3 conversion

The recommended software for this conversion is Lowrance SonarViewer, as it is free, official, and specifically designed for handling sonar log files. Insight Planner is another robust option, especially for advanced mapping and planning needs.

Tips and considerations

• Always back up your original SL2 files before conversion.
• Ensure your software is updated to the latest version for best compatibility.
• Converted SL3 files may be larger due to additional data and features.