Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Grimeton Radio Station, Varberg' has mentioned 'North America' in the following places:
Occurrence Sentence Text Source
From the 1920s through the 1940s it was used to transmit telegram traffic by Morse code to North America and other countries, and during World War II was Sweden's only telecommunication link with the rest of the world.
After careful calculations, the station was located in Grimeton, on the southwest coast of Sweden, which allowed good radio wave propagation conditions over the North Atlantic to North America.