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Doteck develop and design 4K UHD video over fiber, 4K UHD encoder, HD video encodeR&Decoder, HD video fiber optic equipment, HD multimedia fiber optic extender HDMI & DVI & VGA & YPbPr & IP, AES & EBU digital audio over fiber, analog audio over fiber, L band satellite signal over fiber, HD video audio embeddeR&De embedder, HD video converter & splitter, audio converter & splitter, HD video up & down converter, Broadcasting, Electronic Media, CCD CCTV Camera ...