To do the project, friends often encountered when wiring cable transmission length exceeds maximum limit problems. The maximum length of HDMI line is 25 meters, but in the actual wiring often beyond this distance, so it is necessary to adopt the way of regeneration signal amplification, to extend the transmission distance relay. The most commonly used method is to use the add signal amplification chip HDMI line and the HDMI extender.
When using the line a distance of more than 20 meters (including 20 meters), then consider using chip HDMI line. This chip HDMI long-term will be equipped with USB socket connected with the power of a, the power supply interface is used to signal amplification chip power supply, complement and enhance HDMI cable signal.
With amplifying chip HDMI line is the longest can reach 50 meters, because the power amplifier will be subject to limitation of cables (beyond power will burn the cable), reached only HDMI line transmission power ratings, where the signal amplifying signal reduction to the original, so will again reach the limit distance. So if the wiring distance of more than 50 meters, will use the HDMI extender. HDMI line to extend the transmission distance device can be up to 150 meters, can replace the use of transmission further circulation.
HDMI extender consists of the sending end and receiving end of two devices, intermediate by cable as a transmission medium, low cost, good effect of cable transmission, very suitable for signal relay. Send HDMI extender end first converts the HDMI signal to signal lines, and then through the cable transmission, the last in the HDMI extender in the receiving end to restore the signal into HDMI signal, to complete one HDMI signal extending. Finally, access to the HDMI line can be normal use! HDMI extender can currently achieve the transmission distance of 150 meters, so the distance using the HDMI line of friends can according to the situation to choose suitable way for line.