Quattro Lnb (Multiswitch). A Quattro LNB is normally used to feed a large distribution system. A single dish with a Quattro LNB fitted and a multi-switch is able to feed anything between 4 and 100 locations and can provide any of the input signals at each output, depending on a tone sent up the cable by the receiver at each location.
The outputs on a multi-switch are able to be controlled with a 22Hz tone and switching voltages in the same way that the outputs from normal universal LNB can be such as changing band and polarisation. The satellite receivers in each of the locations behave as though they are connected to their own dedicated dish and LNB, but really they are just connected to a multi-switch output. Quattro LNBs are considered to have a better lifetime than quad LNBs as they are not being continually switched.