General Question

stagayote54's avatar

What is a simplified difference between Phase Shift Keying and Frequency Shift Keying?

Asked by stagayote54 (123 points ) November 20th, 2010

How to easily remember the difference between Phase Shift Keying and Frequency Shift Keying?

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1 Answer

LuckyGuy's avatar

FSK adjusts the frequency,
PSK adjusts the phase.
We use nonstandard PSK in our work because we can design a pre-amp and amp around the one frequency and design a filter with broad Q in the range of the expected signals we are trying to extract. We don’t bother with quadrature.
I am not sure if you are a beginner or not. If you are then forget about what I just said ;-)

Here is a good reference with pictures.
If you need more then look at fsk vs psk

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