Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Install
Faster access than browser!
 

Keying (telecommunications)

Index Keying (telecommunications)

Keying is a family of modulation forms where the modulating signal takes one of a specific (predetermined) number of values at all times. [1]

11 relations: Amplitude-shift keying, Baseband, Bluetooth, Frequency-shift keying, Line code, Modulation, Morse code, Passband, Phase-shift keying, Symbol rate, Telegraphy.

Amplitude-shift keying

Amplitude-shift keying (ASK) is a form of amplitude modulation that represents digital data as variations in the amplitude of a carrier wave.

New!!: Keying (telecommunications) and Amplitude-shift keying · See more »

Baseband

Baseband is a signal that has a very narrow and near-zero frequency range, i.e. a spectral magnitude that is nonzero only for frequencies in the vicinity of the origin (termed f.

New!!: Keying (telecommunications) and Baseband · See more »

Bluetooth

Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485GHz) from fixed and mobile devices, and building personal area networks (PANs).

New!!: Keying (telecommunications) and Bluetooth · See more »

Frequency-shift keying

Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is transmitted through discrete frequency changes of a carrier signal.

New!!: Keying (telecommunications) and Frequency-shift keying · See more »

Line code

Some signals are more prone to error than others when conveyed over a communication channel as the physics of the communication or storage medium constrains the repertoire of signals that can be used reliably.

New!!: Keying (telecommunications) and Line code · See more »

Modulation

In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted.

New!!: Keying (telecommunications) and Modulation · See more »

Morse code

Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.

New!!: Keying (telecommunications) and Morse code · See more »

Passband

A passband is the range of frequencies or wavelengths that can pass through a filter.

New!!: Keying (telecommunications) and Passband · See more »

Phase-shift keying

Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency reference signal (the carrier wave).

New!!: Keying (telecommunications) and Phase-shift keying · See more »

Symbol rate

In digital communications, symbol rate, also known as baud rate and modulation rate, is the number of symbol changes, waveform changes, or signaling events, across the transmission medium per time unit using a digitally modulated signal or a line code.

New!!: Keying (telecommunications) and Symbol rate · See more »

Telegraphy

Telegraphy (from Greek: τῆλε têle, "at a distance" and γράφειν gráphein, "to write") is the long-distance transmission of textual or symbolic (as opposed to verbal or audio) messages without the physical exchange of an object bearing the message.

New!!: Keying (telecommunications) and Telegraphy · See more »

References

[1] https://en.wikipedia.org/wiki/Keying_(telecommunications)

OutgoingIncoming
Hey! We are on Facebook now! »