In radio engineering, an antenna (American English) or aerial (British English) is an electronic device that converts an alternating electric current into radio waves (transmitting), or radio waves into an electric current (receiving).

2025年1月28日 · If you want to cut the cord but keep live TV, you need the right antenna to tune into over-the-air broadcasts. Here's what you need to know, along with our top picks.

Utah Antenna Map & Signal Information. View a TV antenna tower map and technical signal information by zip code to determine signal strength and antenna selection.

Get sharp pictures from your local stations with TV antennas from Best Buy. Shop indoor/outdoor digital TV antennas or an amplified HDTV antenna for indoor use.

A 'T' antenna consists of a long horizontal wire crossing the gap between the tops of two towers, with a vertical wire attached to the center of the horizontal wire, hanging down from its center; the dangling vertical wire is the radiating part of the antenna. The wires outline the shape of the letter 'T', hence the name.

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Before we can design an antenna or discuss antenna types, we must understand the basics of antennas, which are the fundamental parameters that characterize an antenna. So let us learn something. We'll start with frequency and step through radiation patterns, directivity and gain, and ultimately close with an explanation on why antennas radiate.

2024年9月16日 · Let me put it this way: An Antenna (or sometimes called as an Aerial), is an electrical device that converts electric power into electromagnetic waves (or simply radio waves) and vice-versa.

2025年3月9日 · Antenna, component of radio, television, and radar systems that directs incoming and outgoing radio waves. Antennas are usually metal and have a wide variety of configurations, from the mastlike devices employed for radio and television broadcasting to the large parabolic reflectors used to receive

2025年2月14日 · Antennas and transmitters are the key to virtually all forms of modern telecommunication. Let's take a closer look at what they are and how they work! Photo: A truck-mounted satellite dish antenna. Photo by courtesy of …