The QPSK/COFDM Estro2 conversion system allows reception of SD or HD Satellite services, even encrypted ones (ideal for the Tivùsat platform), and enables tuning via a digital terrestrial decoder or a DVB-T/T2 TV. Satellite channels, even from different transponders, are converted to a DTT mux selected by the user and mixed with the regular services received through the terrestrial TV antenna. The system is compatible with both Legacy LNBs (Single, Quad, Quattro VHVH, etc.) and SCR and dCSS LNBs. For each converted channel, a preferred LCN (Logical Channel Number) can be assigned to create a channel list organized according to the user’s needs. The range includes 7 different models (FTA, with CI CAM slot, with or without HDMI/USB input), enabling the conversion of groups of channels (SD or HD), selected even from different TPs, to DVB-T (digital terrestrial) or DVB-C muxes. Models with HDMI/USB inputs offer the possibility to convert signals from external sources such as PCs, decoders, or storage devices to DVB-T mux. The system is modular and can be expanded with additional components to increase its capacity.