Mapping program AutoCHART. The PRO version is enhanced compared to the standard processing of sonar data from a sonar with a Side Imaging probe. Additionally, the PRO version also renders the bottom characteristics (its hardness). The data processing for mapping the situation under the surface remains the same. Basic procedures and settings are detailed in the user manual, which is included in the package in Czech. When purchasing, it is necessary to inform the seller about the model of the sonar you have. The data is provided on a memory card, either SD or microSD. A specific sonar model (e.g., HELIX 5) may be equipped with a microSD slot, making it impossible to use the AutoCHART program supplied on an SD card. Technical requirements: Computer with at least 512 MB RAM (1024 MB RAM recommended), 10 GB free hard disk space, Windows XP (SP3) / Win 7 / Win 8, DVD-ROM drive, SD card reader, USB port.