With this Monoblock LNB, you can receive programs of 2 satellites with one antenna (suchas Fuba SAT mirror 85 cm) independent of each other. Naturally, the same high quality standards apply to the Monoblock LNBs as for the standard LNBs of MAXIMUM. Continuous further enhancement & best measurement values result in a crystal-clear reception for highest television pleasure. Owing to the long life of the LNBs of MAXIMUM the manufacturer gives an extended warranty of 5 years for all models. Monoblock LNB: For receiving 2 Satellites for example: Astra & Eutelsat). Consists of 2 LNBs & a Di S Eq C switch. SAT Receivers are directly connected. Universal Quad-LNB (Quattro-Switch) incl Matrix: The LNB has 4 outputs (with horizontal & vertical & low & high-band on each output). You can connect up to 4 digital SAT receivers directly. Another multi-switch is not necessary. Di S Eq C is a control bus, which feeds signals via coaxial cable, which is located between the receiver & connected equipment (multiswitch, satellite rotor, etc.). The control commands are transmitted in a series (consecutively) to the connected device. One of the two satellite positions can be selected via the Di S Eq C signal.