On Thu,4/13/2017 12:13 PM, Samuel Cartinhour wrote:
I recently decided to try JTDX (v 1.7.0), a derivative of the popular WSJT-X software by Joe Taylor.
Why would you want to do that? WSJT in all of its forms is K1JT's invention, the code is written by a team of programmers under Joe's direction, and is under constant development to improve its performance and incorporate new digital modes optimized for different purposes.
The latest released version (fully compiled, ready to run) was released about six months ago, and I'm seeing greatly improved decoding (occasionally as low as -28 dB) and even two decodes on the same tone frequency! In-progress versions can be downloaded from code form, but must be complied by the user. No fun unless you're a computer geek. :)
This is what K1JT wrote on the WSJT Developer's email reflector a month or so ago to the JTDX author.
Jim K9YC - - - - - - - - While I have your attention, I must remind you of obligations you assumed under the GNU General Public License (GPL) when you copied the source code of WSJT-X, made some changes, and renamed it as "JTDX vXX.X ... by UA3DJY". 1. Compliance with GPL requires that a derivative work (such as JTDX) must be licensed in a compatible manner. Just saying "It is open source software distributed under the GPL v3 license" is not enough. Apparently a significant fraction of JTDX distribution takes place from the web sitehttp://jt65-dx.com/download/wsjtx-ua3djy.html . 2. I see nothing on that web site mentioning any license requirement. 3. I see a JTDX screen shot in which the main window title is given as "WSJT-X v1.7.0-devel JTDX v16.6 ... by UA3DJY." We have never released a program called "WSJT-X v1.7.0-devel", so I would not expect to see such a designation on a derivative work. 4. Describing JTDX as "by UA3DJY" is surely misleading, and a violation of the copyrights on our code. Probably >90% of code in your derivative work was written by someone other than yourself. 6. Finally: if you were truly committed to the Free Open Source Software (FOSS) philosophy, I would expect your development work to be organized in a way so that can give back to, as well as take from, the amateur software development community. I can see no evidence that you are doing this, for example with an open source-code repository. -- 73, Joe, K1JT ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
