Telescopic portable radio mast. The mast, held up by guy ropes anchored in the ground, supports the antenna used to transmit and receive signals. The
Telescopic portable radio mast. The mast, held up by guy ropes anchored in the ground, supports the antenna used to transmit and receive signals. The rest of the radio equipment is in the car at lower right. Radio technology was developed in the 1890s, with the range of broadcasts increasing as the technology and antenna designs improved. Photograph published in 'La Telegraphie Sans Fil' (Wireless Telegraphy, 1914), by the French geophysicist Alphonse Berget (1860-1934).
Size: 3638px × 5816px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
Model Released: No
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