Newfoundland. A first faint message is picked up by Guglielmo Marconi and his collaborators. It comes from the other side of the Atlantic. It consists of the three dots that identify the letter “S” in Morse code. The frequency used must have been around 850 kHz (350 m wavelength). The experiment was carried out in broad daylight, a terrible condition for ionospheric reflection. This sparked a controversy, which continues to this day, over the scientific validity of the experiment. But whether he heard something genuine or not, a few months later (February 1902) he proved it beyond all doubt (with witnesses), and this time the best transmission occurred at night…
