The NetMedla MODCAW It 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 retumi the video broadcast signal for One Wiie Video'" installation. It mount! toa typical round 4 inch junction box and it viewed with a television tuner. Other junction boxes from youi local hardware ttore may also be used after leplacing the round bate with another that has a 1/2 inch diameter hole foi the elbow bracket. Equlp-meni that doetnothaveatuner,suchasa security monitor,Quaddltplay.orDVR, will requlrea demodulator (any TV tuner device with a composite video output such as a VCR) to convert the video for its use.