We demonstrate the use of the new NOAA Catalog function that allows for easy selective or general US ENC downloads as well as a way to see what each chart covers and a one-click way to update all outdated charts. We also note what day and time of the week NOAA updates the charts, so it does not pay to try doing so before then. Other features of qtVlm are illustrated in passing, such as its unique object search by name and chart groups.
Definitions of the numerical chart group categories listed can be seen at [ Ссылка ]
Forgot to add: if you have changed the NOAA Catalog storage folder, you can check to see what it is by looking at the normal folders assignment page: menu Configuration/Charts/Rasters and vectors/Folders
