A dual LNB is an LNB system that features two outputs rather than one and allows satellite television subscribers to watch multiple channels on separate television sets simultaneously. Dual LNB systems use only one parabolic satellite dish, but have two cable connections that are connected to separate televisions in the user’s house. When the LNB collects television signals, it splits them into two equal signals that each television receives at the same time. Like dual LNB systems, triple and quadruple LNB systems are also available.