Радиолюбители из австралии впервые в истории осуществили “связь” (передачу информации) на расстояние в 167км с помощью светового луча (без применения лазера).
After writing the above, Jim Whitfield, N5GUI, informed us that the current all-time record for optical communications using Morse code via light was a greater distance than any of the records listed above. It was non-electronic, indeed it was not even electric. It was by heliograph – a mechanically tilted mirror arrangement reflecting sunlight to provide Morse ‘keying’, and the ‘signal’ was received by the human eye. This record was established by the United States Army Signal Sergeants, from Uncompaghre Peak, Colorado; to Mount Ellen in Utah. The distance? 183 miles! The date? 1896 !!!
With 109 years of optical and electronic development, surely we should at least equal that record today with speech modulation – or is atmospheric pollution now so bad that this can no longer be achieved? Who will take up the challenge, ‘walk up to the plate’ (or the mountain) and do it?
Красиво!
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muha_foreva Reply:
December 18th, 2004 at 17:34
хороша.
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Красивая у тебя дочурка, но гирлянду я бы убрал – отвлекает внимание от лица.
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!
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неужели правда?
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мне больше вот это понравилось …
After writing the above, Jim Whitfield, N5GUI, informed us that the current all-time record for optical communications using Morse code via light was a greater distance than any of the records listed above. It was non-electronic, indeed it was not even electric. It was by heliograph – a mechanically tilted mirror arrangement reflecting sunlight to provide Morse ‘keying’, and the ‘signal’ was received by the human eye. This record was established by the United States Army Signal Sergeants, from Uncompaghre Peak, Colorado; to Mount Ellen in Utah. The distance? 183 miles! The date? 1896 !!!
With 109 years of optical and electronic development, surely we should at least equal that record today with speech modulation – or is atmospheric pollution now so bad that this can no longer be achieved? Who will take up the challenge, ‘walk up to the plate’ (or the mountain) and do it?
[Reply]