HDMI or High Definition Multimedia Interface devices will require a signal booster or repeater in order to acheive lossless signal strength if the cable is subjected to a long cable run.
Interfacing between cables, a HDMI Repeater will maintain optimum quality whilst eliminating Digital noise associated...
More Info
Line Repeaters or Boosters are used when the application requires a long cable run. They interface inline and remove digital noise whilst boosting the original signal strength.
Typically Repeaters or Boosters are found in Studios or Multi Media centres where longer Digital cable runs are required.