What are directional antennas?
A. Directional antennas come in many different styles and shapes. An antenna does not offer any added power to the signal. It simply redirects the energy it receives from the transmitter. When the antenna redirects this energy, it has the effect to provide more energy in one direction and less energy in all other directions. As the gain of a directional antenna increases, the angle of radiation usually decreases. This provides a greater coverage distance with a reduced coverage angle. Directional antennas include yagi antennas, patch antennas, and parabolic dishes. Parabolic dishes have a very narrow radio frequency (RF) energy path. The installer must be accurate in how these are aimed at each other.
