In the process of writing Foxhole Radio, I accumulated files of notes regarding early army radio, especially on what would have been considered portable equipment for field use. These letters, diagrams, manuals, and photographs cover 1897 through the First World War, from spark sets through the first vacuum tube transmitters and receivers and the earliest radio telephones.

Rather than simply let all of this languish in file boxes and computer hard drives, I organized it all chronologically, and, as these things do, it began to take a life of its own. It soon became a sort of field guide to these early sets.

Mostly based on contemporaneous records, U. S. Army Radio: portable transmitters and receivers 1897-1918 covers an overlooked area of tactical communications. It is hoped that it will inspire further research and future volumes on related communications topics from the same period, especially the development of aircraft communications, radio telephony, and early radio development in other military services.

U.S. Army Radio is available through Amazon in both paperback and eBook formats.