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)
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)
yojik.eu dimock)