Classicly

The Radio Boys at the Sending Station is a juvenile fiction story by Allen Chapman, a pseudonym used by the Stratemeyer Syndicate as author of several series of children's books like The Radio Boys’ First Wireless, The Radio Boys At Ocean Point, Ralph Of The Roundhouse, Ralph On The Army Train.

Forward from the Book:

Since this volume was written an epoch making invention has been announced to the radio world. It is the super-regenerative system developed by E. H. Armstrong, the wizard of Columbia University. This system is bound to revolutionize the art of wireless communication in every branch, and is in itself the most important discovery since Marconi put into operation the first crude form of wireless apparatus.