Copyright (C) 2001-2020 by Joe Taylor, K1JT. Copyright (C) 2016-2020 by Igor Chernikov UA3DJY and Arvo Järve ES1JA. JTDX is forked from WSJT-X, a computer program dedicated to amateur radio communication using very weak signals. The program runs equally well on Windows, Macintosh and Linux systems, and installation packages are available for all three platforms. JTDX is an open-source project released under the GPL license (See COPYING). If you have programming or documentation skills or would like to contribute to the project in other ways, please make your interests known to the development team. Project Web site: http://www.jtdx.tech Project mailing list: https://jtdx.groups.io/g/main