ham; radio operator(в процессе радионаблюдения управляет работой приёмно-передающего оборудования системы радиосвязи, производит минимум регулировок и ремонта и, когда необходимо, ведёт журнал работы радиостанции)
Marconi man(He could not even see his radio transmitting
key, but that did not matter, for Mr. Johnson of the
Marconi school had always insisted that no one
could be a real Marconi man until he was as good
in pitch darkness as he was in the light of day.Abysslooker)