71.6 MB (9.5 MB compressed)
3794 x 6600 pixels
32.0 x 55.9 cm ⏐ 12.6 x 22.0 in (300dpi)
ALEX BARTEL / SCIENCE PHOTO LIBRARY ALEX BARTEL / SCIENCE PHOTO LIBRARY
Mobile telephone masts. Mobile telephones receive and send voice, text and image data in the form of low-intensity microwaves. The signals are relayed through a network of antennas that are mounted on masts. The masts are typically 15 metres high with antennas with a range of a few hundred metres in urban areas. Hundreds of masts and smaller antennas are required to provide uninterrupted coverage across a network. Photographed in 2019.
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