The NetMedla MODCAM is a self contained camera and modulator that converts the video signal to a selected television channel. It is powered over the same coax cable that (etuins the video broadcast signal (or One Wiie Video'" installation. II mounts toa typical round 4 inch junclion box and is viewed with a television tuner. Other junction boxes from youi local hardware store may aho be used after leplacing the round base with another that has a 1/2 inch diameter hole foi the elbow bracket. Equipment that does not have a tuner,such asa security monitor,Quaddlsplay.orDVR, will require a demodulator (any TV tuner device with a composite video output such as a VCR) to convert the video lor its use.