alponching

Hi Good afternoon to all. I saw an advertisement regarding PVT this morning. They said using this device you can transmit both power and video at the same time over a single coaxial cable. I would just want to ask if anybody here have already used PVT (power video transmitter) to transmit video and power over a long distance? for example 300 Meters. Did it work fine? is the video quality good? I hope someone can help me with this. Thank You very much in advance.

Good Afternoon to all members!