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How do signals travel from the transmitter to the radio receiver when theres no wires?
Wiki User
∙ 12y ago
Light travels from the sun to your eyes with no wires. Heat travels from the fire
to your skin with no wires. A radio signal is exactly the same kind of thing as
heat and light. They're all called "electromagnetic radiation". Other examples
of the same thing are infrared, ultraviolet, and X-rays. The only difference
between all of them is their wavelength. They're made of electric and magnetic
fields, and none of them needs anything to carry it. They travel through empty
space with no trouble at all, without even any air in it.
Wiki User
∙ 12y ago
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Can radio signal travel through salt water?
Radio signals can travel through salt water.
FM signals travel as what changes?
FM signals travel as changes in the frequency of the wave.ANSWER: DEFINITELY not frequency remains the same.The duty cycle changes.It definitely IS the the frequency which changes. It changes at the same rate as the frequency of the modulation.It can be demodulated with a frequency discriminator. If the frequency remained constant and its "duty cycle" changed, the discriminator wouldn't demodulate it.
Can radio waves travel through air?
Of course, they are similar to visible light waves, just a different wavelength and frequency. Indeed, many electromagnetic waves (radio waves) can travel through solid objects and water depending on the frequency and the medium through which they travel. If radio waves couldn't travel through the atmosphere, your radio wouldn't receive a signal, hence no music.
How does a usb radio transmitter work?
Radio transmission occurs when sound or pictures are changed into waves and transmitted. Radio waves are then sent to receivers. The more powerful that a signal is, the further the signal will travel
What formula is used to figure the time it takes a radio signal to travel from Mars to Earth?
Radio waves, like all other waveforms in the electromagnetic spectrum travel at what is known as the speed of light. i.e. 3x10 to the power 8 metres per second (300,000,000) but the distance between the earth and mars varies enormously depending on their relative positions in their orbits around the sun. Anything from approx 35 million miles at it's nearest to about 340 million miles or thereabouts at it's furthest. So roughly 3 minutes minimum to about 30 minutes maximum.
How do AM FM waves travel to a transmitter?
They're usually generated by the transmitter ... that's where they come from ... and they travel to the receiver as electromagnetic radiation, just as light from the sun and heat from the fireplace both travel to you.
What are the Signals that carries tv pictures and sound?
Radio Frequency Energy, AKA as RF Energy are magnetic waves that travel from the transmitter's antenna and is picked by the receiver's antenna then feed to the TV's tuner. If you are on cable or satellite the explanation is still the same.
How do TV waves propagate Do they pass through geography and buildings or do they bounce from transmission source to the ionosphere and back down as in reflected or straight line of sight?
Ideally they should travel from the transmitter directly to the receiver (line of sight). But in reality, they travel in all the ways you mentioned - direct (line of sight), through buildings and obstacles, they bounce off the ground and other objects (including the atomosphere) and then eventually arrive at the receiver.
How do you FM signals travel?
They travel in a back and forth motion
How does wireless remote control for crane works?
Radio remote control: The wireless equipment or machines works on radio waves technology. The artificial radio wave is generated to control the electronic machine such as the overhead crane is called radio remote control. The overhead crane is used for industrial purposes which move and travels above the head at a particular height. The device can move the EOT crane in different directions like cross travel, long travel, and hoist. The hoist is used for lifting and lowering heavy objects. The transmitter and receiver are the two main components that are used for sending and receiving the signal for communication. The radio transmitter has various types such as 8 button radio remote, 12 button radio remote, and joystick radio remote control devices. These all types of devices have their features and specifications. Principle of wireless remote control for crane: The transmitter and receiver are used for communication to control the machines. The transmitter is a handy and small device that can be easily carried by one hand. The operator uses the transmitter device while the receiver is attached to the overhead crane. Communication happens between the transmitter and receiver when the transmitter sends the signal. Whenever the operator pushes the button on the transmitter device a data-packed is sent to the receiver in an encryption form. That means data is first converted to the cipher text from the plain text. When the signal reaches the receiver first decodes the data, the data is converted from cipher text to plain text. This encryption technique is used for the safety of data packets and the communication is not affected by the external entity. More than 10 times in a second communication happens between the transmitter and receiver. And the transmitter device can range from 10 meters to 200 meters distance for communication. While communicating with the receiver the transmitter device detects many things like how many data packets are sent, the communication, the speed of communication, the loss of data packets, successful transmission, number of errors, the signal quality, the distance, and many more. The hopping method is followed by the transmitter and receiver to circumvent unnecessary interference. The EOT crane remote control device provides the interlocked systems in a pair while in use. That means two buttons in a pair cannot be used at the same time. If an up button is pressed on the transmitter device at that time down button cannot be pressed. And we have to keep pressing the up button until the overhead reaches its destination. Features of overhead crane remote control systems: The radio remote control can range from 10 meters to 200 meters. The device uses the 2.4 GHz frequency band technology. The transmitter device is made in such a way that it prevents corrosion and shock. More than 10 times in a second communication happens between the transmitter and receiver. The communication can range from 10 meters to 200 meters. The transmitter device is highly optimized and customized while in use. The crane remote control coating is so strong that it can be used for harsh industrial conditions. The transmitter is a wireless device and works on the battery or charging systems. The remote control adjusts the power automatically according to the distance. The transmitter device works well at a very low battery also. Precedence of crane remote control: The main advantage of the crane remote control system is that it works on the battery or charging replacement system and hence the overhead crane can be operated from a long distance also. And the operator doesn't have to sit inside the crane which makes risk free. The battery used in the transmitter device is durable and can last long up to 6 months. The communication is very safe and secure between the transmitter and receiver. The communication happens rapidly i.e. 10 times in a second. The transmitter uses wireless technology for communication and if any error or lag is found in the systems then the transmitter stops working immediately. According to the distance, the power is automatically adjusted by the transmitter device. That means if the distance is less between the transmitter and receiver then less power is consumed by the device. And if the distance is far then the power is adjusted according to the distance.
What are the three necessary conditions for the production of sound?
1. A source 2. Elastic medium (air) 3. A receiver
How far can cellular telephone signals travel?
Cellular telephone signals can travel up to 22 miles.
How do signals from the hypothalamus reach the pituitary gland?
Signals heading to the anterior pituitary travel through the hypophyseal portal vein. Signals heading to the posterior pituitary travel through the pituitary stalk or infindibulum.
How does microwaves travel to make a phone work?
They travel just like the radio waves that make your car radio work. They are sent from a transmitter - and picked up by your phone - the phone sends radio waves back to the transmitter to complete the circuit.
Who invented the radio player?
If you're asking, who invented radio, an Italian inventor named Marconi is generally credited with the invention of radio around the end of the Nineteenth century.A radio is not a player, it is a device consisting of a transmitter, which changes sound waves into radio waves that can travel great distances. The second part of a radio is called a receiver. It receives the radio waves the transmitter sends out and converts them back to audible sound.
What kind of signals can travel without air?
people who have powers
What kinds of signals travel without air?
people who have powers
