Abstract: A dipole antenna adjustable in span and distance to the reflector provides higher gain reception for a television receiver. By maintaining the ratio of span to distance constant optimum tuning is possible over a given band of frequencies. Tuning adjustment control is obtained from behind the reflector to eliminate interference with the radiation pattern of the antenna. BACKGROUND OF THE INVENTIONThe present invention relates to tunable communication antennas and more specifically to a directional antenna tunable over the UHF band of television frequencies.More and more in recent times VHF channels for television broadcasting in many areas of the country has become limited and the need has greatly increased for UHF channel utilization. Broadcasting in the UHF band, however, presents the problem of greater transmission path loss and higher gain antenna systems are required.