Combiners
Combiners are used to combine the different types of signals together in 1 cable. So they have several inputs and 1 output. Normally this is done outside so that you do not need to install separate cables from outside to inside for each signal type. You can separate the different signals inside with an antenna wall socket or another combiner that is just installed the other way around (1 input and several outputs).
There are several types of signals you can combine together: Satellite TV, UHF (terrestrial TV), VHF (terrestrial TV, but not used in Finland), FM radio.
