This indoor antenna is a type of tv antenna placed indoors, as opposed to being mounted on the roof. these days, indoor antennas are a common solution for receiving signals. this indoor antenna is simple and cheap solution that may work well when the receiver is relatively near to the broadcasting transmitter and the building walls do not shield the radio waves too much.being close to other electric or electronic equipment in the building, an indoor antenna is prone to picking up more electrical noise that may interfere with a clear (analog) reception