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  • Electric signal amplifiers designed for amplification of video (typically in the VHF and/or UHF bands) signals usually following specific standards (e.g., NTSC, PAL). These devices consist of a wide-band, high-fidelity, electronic amplifier with video signal inputs, electronic circuits to amplify the signal, controls (e.g., gain, brightness), appropriate output ports for the amplified signals, and a power supply. Video amplifiers are used mainly in hospital information and communication systems to compensate for transmission losses in remote cable connections throughout the facility and/or to boost signal reception from wireless systems.
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