A satellite dish LNB, or “low-noise block-down-converter,” is the antenna part of a satellite dish set-up and receives the satellite signals focused by the dish. The LNB amplifies the high frequency satellite signals, and then converts them into lower frequency signals, which can be sent along co-axial cable to the satellite box. As the LNB contains complex electronics, it can develop faults over time, which manifest as losing the ability to view certain channels. In extreme cases, all channels can be lost and the satellite box cannot lock onto the satellite signal. When this happens, the LNB should be replaced, a relatively simple procedure. Warnings Writer Bio
