Before America entered World War II, the streets of New York were seething with rival anti-Semitic groups, while German immigrants hailed Hitler as the man of the hour. In this moving novel, Ulla Lenzie tells the story of a German immigrant's life after becoming entangled in a Nazi spy ring in New York during World War II. It sheds light on the Nazi regime's espionage activities in the United States, while illustrating the political entanglements of the time through the life story of Josef Klein, a target of global powers in New York. "Amateur Radio covers a fascinating period in time, captured in unique prose." - The New York Times "The power of this impressive novel lies precisely in the fact that it raises questions but does not discuss them in a curious, penetrating way. Ulla Linze is exactly like her hero: unguarded, telling the story without judgment or preaching, and in doing so, she creates space for her characters to come to life and transforms this fragment of her family history into a literary narrative." - Süddeutsche Zeitung "A thrilling history lesson that addresses a chapter we know little about." - Berliner Morgenpost "How did she manage to write about characters losing their soul and themselves in such a way that we all found support and solace in reading!" - Lucy Fricke "Ula Linze has written a great piece of prose, intense, passionate yet devoid of pathos, utterly true, true, and honest." - David Wagner