QST is a magazine for amateur radio enthusiasts, published by the American Radio Relay League (ARRL). It is a membership journal that is included with membership in the ARRL. The publisher claims that circulation of QST in the United States is higher than all other amateur radio-related publications in the United States combined. Although an exact number for circulation is not published by the American Radio Relay League, the organization claimed 158,238 members at the end of 2021, almost all of whom receive the magazine monthly, in addition to issues delivered to libraries and newsstands. Its first issue was dated December 1915. QST suspended publication after September 1917 due to World War I, but has been in continuous publication since it resumed in May 1919. Magazine name The magazine’s name is the radio "Q signal" for "calling all stations" or "the following message is to be forwarded to all amateur stations". Content QST includes projects for the amateur radio enthusiast, and pictures, articles, columns, and reports on ARRL affairs. Particular interest is given to amateur radio's role in emergency communications such as in the hours after the September 11 attacks and in Hurricane Katrina. Supplemental content to the magazine is available on the ARRL website, including an abridged archive in PDF format, available to ARRL members, that spans all content dated 1915–2011. As part of its centennial celebration in 2014, ARRL published two volumes of QST reprints from 1915 to 2013: One on Amateur Radio technology and the other on advertising. History The first issue of the magazine was published in December 1915, with its first three issues financed by American Radio Relay League founder Hiram Percy Maxim and secretary Clarence D. Tuska, with an expectation that increased membership would finance its continued existence. In October 1916, the editors announced the formation of The QST Publishing Company, mostly to insulate Maxim and Tuska from possible litigation risks. Publication of QST was temporarily suspended after the September 1917 issue. In April 1917, the United States government, following its entrance into World War I, banned all amateur radio activities, and a large percentage of the magazine's subscribers had entered military service. The ban on amateur radio was lifted after the conclusion of the war. QST returned in May 1919 with no cover – billed as “ARRL special bulletin” – and only 8 pages long. At a meeting in New York on March