A Uhf antenna is a directional radio antenna used to receive television broadcasts. This type of antenna is typically employed in digital television systems and can pick up both VHF and UHF channels.
Selecting the ideal UHF antenna for your 4wd needs is essential. Knowing where you plan to use your vehicle will help determine which type of antenna will work best.
Are you primarily planning to use your 4wd on flat country roads, or do you intend to venture off-road and go up into the mountains? Knowing whether you require either UHF or VHF antenna service will determine which model best suits your needs.
The dB Gain of an antenna refers to the amount of radio frequency energy emitted in one direction by an antenna. This value is usually expressed as power dBi over a dipole but can also be referenced to an isotropic radiator.
Antenna gain also depends on the length of its elements, which are inversely proportional to the wavelength of the radio signal. For instance, UHF frequencies require shorter antenna elements than VHF ones to be effective.
Antennas typically consist of various elements, such as dipoles, reflectors, and antennas. These antennas may be internal or external, typically encased in plastic for protection.
