50.0 MB (5.4 MB compressed)
4180 x 4180 pixels
35.3 x 35.3 cm ⏐ 13.9 x 13.9 in (300dpi)
JIM WEST / SCIENCE PHOTO LIBRARY JIM WEST / SCIENCE PHOTO LIBRARY
Morse code radio message. Close-up of an amateur radio operator, also known as a ham radio operator, using a morse code keyer while participating in a public relay event. In this event, the participants set up their equipment in a public place and attempt to contact as many other relay stations as possible. This is the American Radio Relay League's annual field day. Photographed on 28 June 2015, in Livonia, Michigan, USA.
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