FTA digital satellite TV receivers typically consist of a tuner, demodulator, and decoder that work together to decode digital satellite signals. A tuner selects the desired signal from a range of frequencies, and a demodulator extracts information from the signal. The decoder then converts the signal to a digital or analog format that can be displayed on a TV screen.The receiver is usually connected to a satellite dish that receives the signal from the satellite. The receiver also includes an Electronic Program Guide (EPG), which displays a schedule of upcoming shows and allows viewers to easily browse channels. FTAs differ from traditional cable or satellite TV services because they don't require any subscription fees or contracts. They provide access to a wide range of channels including news, sports, entertainment and educational programming without access restrictions