Frequency-Shift Keying

What is Frequency-Shift Keying (FSK)?

Definition and meaning of Frequency-Shift Keying

Frequency-shift keying (FSK) lets in Digital Data to be transmitted via Modifications or shifts within the frequency of a provider Signal, maximum usually an Analog provider sine wave. There are Binary States in a sign, zero (0) and one (1), every of that is represented by using an analog wave shape. This binary facts is transFormed by means of a Modem into an FSK sign, which may be transmitted thru phone strains, Fiber Optics or wi-fi Media.

FSK is usually used for Caller ID and faraway metering programs.

FSK is likewise known as Frequency Modulation (FM).

What Does Frequency-Shift Keying Mean?

For Instance, a low-pace Hayes-well matched Modem uses an unbit FM Method. When no Digital facts is transmitted, the frequency is 1,seven hundred Hz. When a one is transmitted, the frequency shifts to two,200 Hz. When a 0 is transmitted, the frequency shifts to at least one,2 hundred Hz. The Range of those frequency shifts consistent with 2d is measured because the Baud or Modulation Charge. Thus, a 2,four hundred baud modem can Procedure zeros and ones from a Computer on the fee of two,400 bits in keePing with 2d the usage of FSK. This is the only virtual communication, wherein baud and Bit Rate are the equal and measured in bits according to 2nd.

In more superior modems and facts transmission strategies, a image may also have extra than two states, no longer just zeros and ones. It may additionally represent multiple bit of Records. However, a unmarried bit always represents one in every of states – either a zero (zero) or a one (1). In this situation, baud (or image charge expressed in symbols/second or pulses /2d) and bit charge are special and ought to no longer be confused with one another.

What does FSK stand for?

When we refer to FSK as an acronym of Frequency-Shift Keying, we mean that FSK is formed by taking the initial letters of each significant word in Frequency-Shift Keying. This process condenses the original phrase into a shorter, more manageable form while retaining its essential meaning. According to this definition, FSK stands for Frequency-Shift Keying.

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