QEX is a magazine published by the ARRL for communications experimenters. The articles and papers in it are much more technically-oriented than most of what is in the QST ARRL magazine. One must be an ARRL member to access the QEX files and maybe even a QEX subscriber (I am one - I don't know if an ARRL member can access the QEX files without having a QEX subscription).
I haven't tried to access any QEX papers in a while. The papers as published in the physical magazine are limited in length and so, make available more technical details, software, schematics, etc., etc., there are a bunch of additional files for many of the papers on the ARRL/"QEXfiles" web pages. It appears that the original text of the published papers is not available but the supplemental files referenced above are.
Remember that the magazines published by the ARRL are all copyrighted and so it is not strictly lawful to pass PDF copies of them around, at least to non-subscribers. I'm guessing that that is the reason that one cannot just download PDF copies of the articles.
I will look to see if I can find my paper copy of the 2017 May/June issue of QEX. I think I unpacked my QST and QEX magazines a while back.
As an aside, QEX is a pretty good technical publication.
DaveD
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On 7/11/2019 11:47 AM, dk1vi wrote:
Have searched the net, but did not find a copy of the QEX 2017/05. Do you know any source for this reference?