Two frequency bands are in use in the USA for broadcasting: VHF, separated in low and high, and UHF. Low VHF encompasses channels 2 to 6 (frequencies 54-88 MHz), High VHF uses channels 7 to 13 (frequencies 174-216 MHz) and UHF uses channels 14 to 36 (frequencies 470-608 MHz).

An intelligent antenna has an integrated built-in amplifier, while a passive antenna does not have an amplifier. An intelligent antenna will work on active mode if it’s connected to power provided from a downstream power supply, receiving power through the coax cable. A passive antenna is not an active component even when connected to a pre-amplifier, it is rather just a passive component of an active system.

Broadcast signals are electromagnetic waves that propagate freely in space. The antenna works as an interface or media converter from these electromagnetic waves to conducted waves. Simply put, the antenna collects the airwaves, either very weak or very strong. In addition, depending on the distance to the television transmitter and other factors such as altitude, trees, hills/mountains and buildings, the signal strength may be reduced. Signals can be amplified at the antenna, as we do, downstream of the coaxial cable antenna, or even, in the case of very strong signals, the antenna may not need an amplifier.

There is no perfect antenna for everything, but depending on the situation, it will be convenient to choose one or the other. The selection of the right antenna depends on the frequency and strength of the available stations received in the user location. With these two factors in mind, you can consult our webpage to help you in making the right decision. In addition to listing the TV stations that are available in your area, our webpage also recommends an antenna (or antennas in case of several directions) which maximizes the number of stations and the quality and strength of the signals received. Finally, it is important to remember that antenna reception depends on many factors (the power and height of the transmitter, the existence of obstacles, the height of the antenna, and so on). If any doubt arises, it is preferable to select an antenna with a longer range to ensure good performance.

Receiving excessive signal (location very close to the broadcasting tower) can be as bad as having poor signal. In case of excessive signal, the use of a high dynamic range antenna is recommended, like the Ellipse or the DAT BOSS MIX LR, which adjust the output level no matter the reception conditions in order not to overdrive the TVs.