Things To Learn About Antennas
You should try to hold out your hand and catch pictures, words, and information passing by. More or less, that is actually how an antenna functions. The antenna is the metal dish or rod that will catch the radio waves and turn them into electrical signals that will feed the radio, telephone systems, or television. These antennas are also called receivers. You need to know that the transmitter is actually another type of antenna which will do the opposite job of the receiver which is to turn the electrical signals to radio waves so that they can travel back and forth to space or travel around the world. Transmitters and antennas are the key to all types of modern telecommunication. That is why you should read this article in order for you to know more about them.
You need to know the function of these antennas.
If you are a boss of a radio station and want to transmit your programs all around the world, how are you going to do it? You need to make use of microphones to catch the sound of voices and turn them to electrical energy. You will take the electricity and allow it to flow into a tall metal antenna. As the electrons will wiggle back and forth the metal antenna, they will from an electromagnetic radiation in the form of radio waves. The radio waves will travel at the speed of light and they will the radio programs along with them.
It is important for you to know that most of the time, antennas and transmitters have a similar design. For instance, if you have a satellite phone that can receive and send video or telephone calls to any parts of the world using space satellites, then the signals will be received and transmitted using a single satellite dish or a special type of antenna. But most of the time, receivers and transmitters look different. The radi or tv broadcasting antennas are huge and can high into the air for hundreds of feet because they need to send powerful signals over very far distances.
It is important for you to take note that waves don’t usually zap through the air. Based on the type of waves you want to send, how far you want to send the waves, and when you will be sending the waves, there are actually three ways on how the waves can travel. The waves can travel from transmitter to receiver via the ground wave, through the ionosphere, or by line of sight.
You should take note that two antennas are needed in a radio. You should know that the signals on these wave bands are carried by radio waves of various wavelength and frequency. If you want to learn more about antennas, check out this link now.