The purpose of an RF modulator is to ensure that the signal provided by the carrier can travel from place to place. There are three primary types of modulation that accomplish this task.
Radio frequency, or RF, modulation, while formerly used to describe frequencies of a certain bandwidth, is now a term used to describe various wireless signals. The process of modulation relates to how the signal is carried from one place to another.
Amplitude modulation, or AM, involves changing the signal's intensity and was the first method of sound broadcasting. Frequency modulation, or FM, involves changing the frequency or amount of signal. Phase modulation, or PM, involves changing the phase of the carrier. Both FM and PM are known as angle modulations that do not involve changes in amplitude.Learn More
A common method used to censor sound includes the playback of a loud, single-tone "beep" sound in place of the sound to be censored. Offending sounds may also be silenced completely.Full Answer >
Transistors function as current amplifiers or binary switches. With amplification, a small current controls a gate for a greater current. As switches, a 5-volt threshold (gate open) equals binary digit one, less than 5 volts (gate closed) equals binary zero.Full Answer >
A ferrite core is a kind of magnetic core made of ferrite and on which the windings of electric transformers and other wound components including inductors are formed. It is used to prevent eddy currents because of its properties of high magnetic permeability and low electrical conductivity. Ferrite cores are ceramic magnetic bodies that consist of soft ferrites formed into various shapes.Full Answer >
The neutral wire in electronics is the wire in which electricity returns from the hot wire. It is also connected to the ground wire.Full Answer >