Jun 26, 2020 TQSL is free software used to upload and sign logs to the ARRL Logbook of the World (LoTW). TQSL works with Windows, MacOS and Linux. https://turbohowto.weebly.com/free-twain-driver-software-for-mac.html. LoTW is free to all Amateur Radio Operators around the world, and membership in the ARRL is not required. .Mac users can access and use Personal Vault by visiting onedrive.com on a browser. Learn more about Microsoft 365 Microsoft 365 is a cloud-based subscription service that brings together premium versions of Word, Excel, PowerPoint, Outlook and OneDrive, with the best tools for the way people work today.