The book is "Today I Am a Ham" and is about a boy learning to be a ham radio operator and all he goes through in getting his license. Back when this book was written (1961), a ham had to first pass a test to be a novice and could then only send messages via Morse Code. Then he had to take another exam (within a year of getting his novice license) before he could send messages via voice. The main character, Eric, is the son of a high school football coach with three sisters. He worries that he disappoints his dad because he "isn't athletic." But he surprises both himself and his dad in the end.