The Extron P/2 DA4 Plus and P/2 DA6 Plus are one input VGA--UXGA distribution amplifiers that split a signal and distribute it to four or six separate outputs. With 300 MHz (-3dB) of video bandwidth, the P/2 DA4 Plus and P/2 DA6 Plus are capable of driving any VGA--UXGA computer signal up to 250 feet (76 meters) using Extron high resolution VGA cable. Each output is individually buffered and amplified to help maintain the original signal integrity and eliminate noise interference. The P/2 DA4 Plus and P/2 DA6 Plus are also compatible with a variety of data displays and include a video gain switch for long cable runs.
Technique de diffusion 3D avec lunette passive et active sur 
Technique de diffusion 
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