HDMI is currently the best choice for Audio and Video connections. Because it transfers both audio and video on one cable, in an uncompressed format, its perfect for high definition displays and setups. HDMI is also compatible with the latest digital transmission standards like HDCP (High-bandwidth Digital Content Protection).
HDMI has one main drawback. Unfortunately it is not designed for long cable runs. The higher the resolution and the longer the cable, the more the signal has a chance of become degraded. This is because the cables are manufactured using twisted copper pairs of very small-gauge wire. Unlike normal coaxial cable, this makes interference and degradation a reality whenever dealing with lengths over 50 feet.
Fortunately, the wise creators of the HDMI standard thought long and hard about their specification. Because they choose to include a line for power within the cable, it has become possible to power repeaters that are internal to the cable. Normally, signal boosters and repeaters need an external power source to boost the signal, but because of its design, HDMI can actually be extended without an external power source.
These...
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