SD logging App Now Free

With effect from January 1, version 21 of the logging App SD by EI5DI is free and unrestricted.

SD supports RSGB, UKEICC and IRTS HF contests, and hundreds of others worldwide.

SD runs on Windows, and on Linux with Wine, and on Raspberry Pi 3 with Wine and Exagear (from

No registration or key file is required. SD will continue to be supported and updated, and users can request help by emailing sd-user (at)

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