Yagi antennas differ from most antennas. The reason is that each Yagi antenna is designed to receive a tight band of frequencies according to its size. The sizes range from 1 foot to several yards, so it is important to know the frequencies you wish to receive before building your antenna. Yagi antennas have four main parts. The boom, reflector, driven element and a series of directors. Each wire or rod is slightly larger than the one before it. This means the antenna is directional and with each wire directs and focuses the signal. The end result is you get a strong signal hitting the driven element. Tips Warnings Writer Bio

How to Build Your Yagi Antenna - 71