Shown here, in the August 1963 issue of Radio-Electronics, is the path of a telephone call made from Washington to London, as part of that year’s Armed Forces Communications & Electronics Association (AFCEA) convention. The call was carried by conventional telephone lines at the beginning and end, but between Goose Bay, Newfoundland, and Flyingdales, England, it was a series of 13 hops over Canada, Greenland, Iceland, and Britain, via tropospheric scatter.

While not identified in the article, the system appears to be the North Atlantic Radio System.