Before doing a channel scanning. Make sure your antenna is pointed toward the broadcast source and your antenna has the correct reception range for your area. The reception range is found on the antenna packaging. Also, if you are in an area of high interference (e.g., buildings, hills, mountains, or trees between you and the broadcast towers), you may need an attic-mount or outdoor antenna. Tools and resources, such as, are available to check your area for signal strength and available broadcasts.