Последние добавленные видео:
radio-frequencies
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5 years ago
423124 5 years ago 4:38GCSE Physics - Radio Waves
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4 years ago
107859 4 years ago 4:52Wireless principles : RF or radio frequency , Hertz explained in simple terms| free ccna 200-301
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6 years ago
125631 6 years ago 33:52Radio Frequencies, Bands, Modes and Bandwidth Explained.