An aerial picks up radio or TV signals: it plucks them out of the air. So "aerial" relates to the air. The word comes from Latin "aerius" meaning "airy" and Greek "aerios" meaning "of the air".
Aerial vs. Antenna
Definitions
An aerial is a device that transmits or receives radio waves traveling in the air. "Aerial" relates to the air.
An antenna receives signals from a specific direction. There are many types of antennas, each with a specific purpose, like omni-directional or directional antennas. AM and FM radios need different wavelengths.
Differences as Nouns
- Aerial: Sends or receives radio or TV signals and operates in the air.
- Antenna: Refers to sensitivity like a receptor organ and can be a part of the entire system including the aerial.
Common Usage
In the US, the term "antenna" is more common, while in the UK, "aerial" is frequently used; however, both terms can be used interchangeably.
Installation and Costs
Antenna installation typically ranges from $150-$500 depending on location, job complexity, type, and technician experience. When finding TV antenna installation, consider the aerial type, location, and cost.
Types of Antennas
- Helical
- Parabolic dish reflector
- Arecibo radio telescope antennas
Note: An antenna produces an electric current from radio waves applied to a receiver.