Baseband video is the analog signal you get from the "Video Out" connector on a VHS, Camera or other equipment. Usually it's an RCA-style connector, or a BNC on professional-grade devices. The single video plus stereo audio products (AV900 & AV901) are among our most popular products, sending signals over UTP CAT5 or CAT6 cable. There are multi-channel panel devices available here, as well. Two units required to create a complete system.