Hiram Percy Maxim and Clarence D. Tuska, Unlicensed Amateurs! QRT QRT (1916)
“ Scofield made the mistake of his life in not applying for a license in the beginning. Every amateur ought to remember this case for the first time he sends out a message and signs calls letters which he has selected himself either from his initials or something else, he is guilty of not only operating an unlicensed station, but operating without an operator’s license and also sending unauthorized call letters. ”
