Abstract: A method and apparatus for adjusting the position of an antenna to improve reception at a television includes a signal generator which measures the signal strength received by the antenna. The signal generator sends a low frequency coded signal to a display visible to a person who is adjusting the antenna. The display provides a quantitative indication of the signal strength to the installer of the antenna, allowing precise adjustments to be made in accordance with the displayed value. The signal generator provides the coded signal to the display via the same cable used to carry the received signals from the antenna to a receiver, such as a set-top box.