What is the primary use of a Yagi antenna?

The primary use of a Yagi antenna is to improve reception of radio waves. Yagi antennas consist of multiple elements arranged in a specific configuration, typically including a driven element, reflectors, and directors. This design allows the antenna to focus its energy in a specific direction, which enhances the strength of the received signal. This directional property is particularly beneficial for receiving weak signals from specific sources, making Yagi antennas popular in applications like ham radio, television reception, and other forms of communication where signal clarity is important.

While other antenna types may serve different purposes, such as transmitting audio signals or allowing for multiple frequency transmission, the Yagi's unique design is specifically optimized for directional reception, thereby enhancing signal quality and reducing interference from other sources. This makes the Yagi antenna a preferred choice when improved performance in receiving radio waves is required.