Some reports pointed out that increasing the diameter of the copper wire in the cable to reduce impedance is one of the effective ways to extend the length of the cable. There are also reports that the 24AWG specification cable performs better than 28AWG. In addition, some people use optical fiber or two CAT-5 network cables to replace the standard HDMI copper wire. Some manufacturers also manufacture HDMI signal boosters to meet the needs of users.
There is a single HDMI equalizer IC, which can make the maximum length of 24AWG HDMI cable 50 meters.
