Satellite receivers are electronic devices that allow you to tune into TV satellite, since they receive the signal from the satellite dish outside, decode it and displayed it on the TV. There are external, internal satellite receivers for PCs, and they have numerous features such as HD, ability to decrypt, TDT, multimedia player, upgradeable firmware, hard disk, Ethernet, card reader, USB, Time Shift, parental control or games. Types of satellite receivers, satellite receivers receive from the outdoor dish antenna TV signal, decode it and displayed it on the TV, various formats to exist: external satellite receivers: are external devices that are connected to the TV and to the signal source. Internal satellite receivers: are integrated into the TV. Satellite receivers for PC: are TV tuner cards with PCMCIA or USB interface connecting to a personal computer.
Television via satellite television satellite is a television system that transmitted television signal through a communications satellite, so that the signal can be tuned from other points of the Earth by satellite antennas and satellite receivers. Satellite TV involves three elements: issuer: satellite television starts in the issuing Center transmission antenna. These parabolic antennas are oriented toward a specific satellite and are very large, between 9 and 12 m in diameter, in order to transmit the signal to the most power possible. Satellite: it receives the signal from the transmitter Center and relayed to Earth at a different frequency to avoid interference with the signal received. Receiver: the signal from the satellite is picked up by the antenna dish reception, usually between 60 and 80 cm in diameter and equipped with an LNB (Low Noise Block, low-noise block) that amplifies, filters and converts the frequency of the signal. Then sends the signal to the satellite receivers through coaxial cable, where it is decoded into the desired shape (TV, audio or data output). Jayme Albin : the source for more info. Features look at some satellite receivers account important features: analog/digital: satellite television is transmitted in analog and digital.
High definition: many channels broadcast in HD (High Definition HD). Pay channels: some satellite receivers can decrypt the signal, allowing you to tune channels of payment. DTT: some models allow you to tune in the Freeview channels. Firmware update: is suitable that firmware is upgradeable to add future functionality. Controls: usually satellite receivers are used by remote control and menu, acting as OSD TV, although some have buttons and LCD display. Connectors: you should have more common, like DVI, HDMI, s-video and SCART connectors. Additional functions: many models have advanced features such as player Multimedia, hard drive, Ethernet connectivity, card reader, USB connector, delayed reproduction (Time Shift), parental control, blocking chains or games.