The animated TECHTip Tutorial is available here.

PSK [Phase Shift Keying] varies the carrier (power level) signal. Like with multiple shifts (changes) in frequency, there are many changes in phases.

BPSK [Binary (two) PSK] shifts 180 degrees.

DPSK [Differential PSK] the phase is not shifted by some known factor but by the phase of the last symbol sent.

WNW [Wideband Networking Waveform] uses advanced DSP [Digital Signal Processing] waveform with digital communication techniques including DPSK and QPSK [Quadrature PSK].

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[tags]psk,dsp,dpsk,wnw,qpsk,phase shift keying[/tags]