To use this Epiphan Webcaster X2 encoder for Facebook and YouTube streaming, you'll need to provide your own power supply and antenna. First, connect the power supply to start up the unit. Then, attach the antenna for better signal reception. When streaming, make sure your internet connection is stable. As for maintenance, keep the unit in a dry and cool place. Avoid exposing it to direct sunlight or moisture. If you notice any issues other than the dim pixels on the front screen, it's best to seek professional help.