Cet artefact appartient à : © Bell Canada
Impression - Bulletin d'entreprise
Nouvelles du téléphone (Bulletin anglais)
1953, 20e siècle
Collection historique Bell Canada
Clefs pour l'histoire:
Microwave Network Established Under the Direction of Thomas Wardrope Eadie, President of the Bell Telephone Company of Canada from 1953 to 1963
The Canadian microwave network improved long-distance telephone communications and made television broadcasting possible.
Microwave networks were pioneered in the Maritimes. When Prince Edward Island was connected to the mainland in 1948, it was a world first.
During the Second World War, a number of microwave applications were developed, including radar. In the 1950s, the nature of telecommunications changed with the advent of television in 1952.
Heinrich Rudolf Hertz was a German engineer and physicist. In 1888 he proved the existence of the electromagnetic waves theorized by James Maxwell in 1873. He has lent his name to the hertz (Hz), a unit of frequency (one cycle per second) used to measure radio waves.