 In 1947, he took part in Thor Heyerdahl's Kon-Tiki expedition from Peru to Polynesia as a radio operator, exchanging frequent messages with amateur radio enthusiasts in Chile, the United States, and even Norway, on a tiny 6-watt transmitter.After the expedition he returned to northern Norway, until he, again as a radio operator, lived on the remote Bear Island, far north of the Arctic Circle.From 1959 to 1961 he was a station controller of the radio station on the Arctic island of Jan Mayen.