Stationary Directional Antennas, Yagis

An FM directional antenna is a specialised antenna used to direct the signal from FM radio stations in a specific direction for better reception quality. This type of antenna is often used by people who live or work in areas with poor FM reception.

A directional FM antenna works by directing the FM signal from one transmitter in a particular direction while blocking the signal from other directions. This is achieved by using special elements within the antenna to focus the signal in the desired direction.

Installing a directional VHF antenna usually requires some basic knowledge of electronics and construction. It is best to follow the manufacturer's instructions and ensure that the antenna is properly connected to the FM receiver. It is also important to install the antenna in a location with a clear view of the transmitter and to ensure that it is protected from wind and weather.

Yagi antennas are a type of antenna known for their directivity and high gain. They typically consist of a longer element, called a boom, to which several shorter elements, such as a reflector and several directors, are attached. This configuration helps focus and amplify radio waves in a specific direction. There are different Yagi antennas for different frequency ranges in amateur radio, from shortwave to VHF/UHF. They vary in size, number of elements and design, depending on which bandwidths are covered and which specific requirements are to be met, for example for satellite communication, radio links or competitions.

A Yagi antenna is a type of directional antenna that consists of a long element called a boom and several shorter elements arranged perpendicular to the boom. These elements are typically an active feed line (the dipole), one or more directors in front of the feed element, and a reflector behind the feed element. The Yagi antenna works on the principle of wave amplification, in which the dipole absorbs and radiates the signal. The directors help amplify the radiation of the signal in a particular direction while the reflector reflects the signal in the opposite direction, thus increasing the forward gain. This arrangement creates a directional pattern that allows the Yagi antenna to efficiently receive and transmit signals in a specific direction, making it particularly suitable for long-distance communications