Amateur radio operators,also known as ham radio operators,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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / West, Jim |
Bildgröße: | 3460 px × 5051 px |
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