Aerial antennas for UHF (Ultra High Frequency) are designed to receive TV broadcasts transmitted on frequencies between 470 MHz and 862 MHz. These antennas are used to receive digital TV signals (freeview) that have replaced analogue TV signals.
UHF aerial antennas are typically designed as directional antennas, which means that they are optimized to receive signals from a specific direction. This is because UHF signals are highly directional and tend to propagate in straight lines. A directional antenna can help improve signal strength by focusing on the signal from the intended transmitter and reducing interference from other sources.
There are various types of UHF aerial antennas available in the market, such as Yagi, log-periodic, bowtie, and patch antennas. The Yagi antenna is a popular choice for UHF reception due to its high gain and directional characteristics. It is designed to receive signals from a particular direction and can be used for both indoor and outdoor applications. The log-periodic antenna is another popular option that can be used for UHF and VHF reception. It has a wider frequency range and can receive signals from multiple directions.
When selecting a UHF aerial antenna, it is important to consider factors such as the signal strength in your area, the distance from the transmitter, the terrain, and any obstructions that may affect the signal quality. It is also important to choose an antenna with the appropriate gain, directionality, and impedance to ensure optimal reception.