Atlona Technologies AT-HDTX HDBaseT Transmitter Over Single Category Cable Atlona transmitters use advanced HDBaseT technology to extend signals farther on a budget, with maximum distances as far as 230 feet (70 meters). Power outlets are only needed at the transmitter, so no other power is needed at the receiver. Upgrade in the field via USB port. With our TX boxes you get resolutions up to Ultra HD (4Kx2K) as far away as 130 feet (40 meters), the longest of the value transmitters that meet HDBaseT specifications. Recommended Receivers: AT-HDRX - PoCc, audio, and video. AT-HDWP - US wall plate with PoCc, audio, and video. AT-HDWP-UK - UK wall plate with PoCc, audio, and video.