This is an example of RF installation for apartment building. The system enables the users to receive any TV program from each TV-SAT outlet in the apartment. Subscribers of SAT TV are able to connect their SAT receivers and receive programs from the satellite once selected by the administrator of the building. The antenna and diplexer are installed on the roof, the set of amplifiers and splitters - in the attic. Such a design provides opportunity for developing the system in the future, for instance, by CCTV monitoring - as shown here. While building a new building or during renovating or upgrading the old one, the user should remember about cabling every room where TV-SAT outlets are to be installed. It is also a good idea to make a little investment in quality SAT cable to avoid a need of replacement in a few years' time. Due to the complexity of such an installation the design should be entrusted to a professional company.