Selection of a good HDTV antennae involves a comprehensive understanding of the antennae gain, antennae beamwidth and the front-to-back ratio. A good antennae should be in a position to receive any kind of signal that is usable by the HDTV.
A good HDTV antennae has a higher antennae gain, which involves the relative comparison by which a signal is magnified as compared to the dipole antennae. The narrower the antennae beamwidth, the more desirable the antennae is. It involves the wideness of the angle that receives signals once the aerial is orientated to a certain direction.
Larger antennas have narrower beamwidths. The best antennas are usually in a position to manage the signals received from the rear points, especially due to reflections from large buildings in urban areas. The antennas should transmit both the VHF and UHF signals. The best antennas offer more than a 360-degree rotation for the best signal reception. The best HDTV antennas are heat resistant and rarely react to high temperatures, since they are always exposed in the open to the sun.
A good HDTV antenna must also be from a reputable company. Because of roof complexities and shiny surfaces, dealing with non-experienced companies may result in huge losses.