1 Channel HDMI Transmission. The Dahua PFM700-E is a video HDMI video extender used to transmit 1 channel HDMI video signal. It has excellent anti-thunder, anti-static and anti-interference capabilities and has a maximum transmission distance of 50m (164 feet). There is no need to install driver program or set network parameters, making this transmitter and receiver set both easy and convenient to install.. Real-time transmission HDMI video signal. HDMI transmission distance 50m (max.164ft), with CAT6 of pure copper cable. Support to transmit one-way infrared remote control signal. Excellent anti-thunder, anti-static and anti-interference capabilities