Multiswitch

A typical Ku band universal LNB designed for the European market can be switched between four modes (two frequency ranges and two polarisations) selected by signals from the receiver (supply voltage for polarisation and presence or absence of a 22 kHz tone for frequency range).

Some multiswitches can also mix in terrestrial TV and FM radio signals which can then be split out again by a special faceplate (known as a triplexer).

Such Integrated Reception Systems allows satellite, TV and radio service to be supplied down a single cable saving on installation costs.

Some multiswitches only have two inputs (for one dual LNB), in this case, depending on the voltage supplied by the receiver; either horizontal or vertical polarisation is selected.

As North American DBS providers are notorious for forcing proprietary "package" receivers on their subscribers, often with no ability to tune outside the one pay-TV package, the wideband "quattro LNB" able to tune multiple distinct Ku band frequency ranges is uncommon.