The moving electrons create a magnetic field surrounding the wire, strong enough to affect a compass. HowStuffWorks You can get an idea for how a radio transmitter works by starting with a battery and a piece of wire. A battery sends electricity (a stream of electrons) through a wire if...
An AM radio transmitter uses an oscillator to create the carrier wave for the station, while an AM radio receiver uses a special form of oscillator called a resonator to tune into a station. There are even oscillators in computers, metal detectors and stun guns. To better understand how ...
The moving electrons create a magnetic field surrounding the wire, strong enough to affect a compass. HowStuffWorks You can get an idea for how a radio transmitter works by starting with a battery and a piece of wire. A battery sends electricity (a stream of electrons) through a wire if...
The burst might last a microsecond. The radar set then turns off its transmitter, turns on its receiver and listens for an echo. The radar set measures the time it takes for the echo to arrive, as well as the Doppler effect of the echo. Radio waves travel at the speed of light, ...
The transmitter sends a control signal to the receiver using radio waves (see How Radio Works for details), which then drives a motor, causing a specific action to occur. The motor in a car may cause the wheels to turn, while the motor in a plane may adjust the flaps. The power sourc...
Others have one large transmitter and one small, movable reflector; the suspended object moves when the reflector moves. Frequently Answered Questions Is acoustic levitation possible? Yes, acoustic levitation is possible. How does acoustic levitation really work? Acoustic levitation is a phenomenon in ...
The most common perimeter scanner is a basic radar system, consisting of a radio transmitter and receiver. The transmitter sends out radio signals and the receiver monitors the signal reflections that come back. Based on this information, the radar device can determine the proximity of any ...
1) Electrons rush up and down the transmitter, shooting out radio waves. 2) The radio waves travel through the air at the speed of light. 3) When the radio waves hit a receiver, they make electrons vibrate inside it, recreating the original signal. This process can happen between one ...
A transponder is an electronic device used to wirelessly receive and transmit electrical signals. Fittingly, its name is equally derived from the words "transmitter" and "responder." It was originally developed to be attached to an object that needed to be located, and some are still used in ...
FEC corrects data errors that are detected at the receiving end and improves a device's effective range by four or more times without having to use more transmission power. This means a device can successfully receive data when it is at a much longer range from the transmitter, where the ...