PSK (Phase-shift Keying)

Phase-shift keying (PSK) happens when data is transmitted by changing wave frequency . A finite number of changes are used in PSK, making the frequency changes trackable and understandable for those receiving the data. Where one method of data transmission will rely on the same frequency, PSK uses a set number of changes in frequency to communicate even more information, which can be useful to discreetly transmit data.

What Small and Midsize Businesses Need to Know About PSK (Phase-shift Keying)

PSK is the most commonly used digital modulation technique, including for wireless LAN, Bluetooth, and RFID protocols. Although Bluetooth originally used Gaussian frequency-shift keying, PSK became an alternate option beginning with the Bluetooth 2.0+EDR specification. Small and midsize businesses that want to include these protocols in their products should familiarize themselves with phase-shift keying and how it is used in wireless communication technologies.

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