High definition digital television content is readily available for free, directly over the airwaves.To pull in these high-quality signals, a rooftop or indoor antenna is required. However, you can’t just slap an antenna anywhere and expect results – careful aiming is often required. Resources like Antennaweb and TV Fool can point you in the right direction for antenna selection and aiming. Antenna preamplifiers give a small boost to the signal as it leaves the antenna, helping push the signal along the wire until it reaches an amplifier, located in a basement or attic space. These devices are normally used in situations where an individual coaxial feed exceeds 200 feet. If that feed must serve several sets, amplified splitters maintain signal strength, ensuring that each set receives the right amount of signal. Some are adjustable, so if one or more televisions are unusually close or far away from the splitter, you can dial in the amount of boost required to get the signal there – or reduce it to prevent signal overload. If you have two or three sets that are relatively close together – such as a living room, bedroom and adjoining den – a basic, high-quality unamplified splitter is usually acceptable. Writer Bio
