Fsk Err (RFID)
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FSK Frequency Shift Keying: A form of modulation using multiple carrier frequencies to carry the digital information. The most common is the two frequency FSK system using the two frequencies to carry the binary ones and zeros. ERR is computed by comparing the FSK reference signal with the FSK measured signal at the symbol locations-points between symbols are not used, as follows:
FSK Err = FSK Meas[n] - FSK Ref[n]
The FSK error in the symbol table is shown as a percentage of the deviation. To derive this percentage, the analyzer computes the rms average of the FSK error at all symbol locations, divides by the deviation, and multiplies by 100:
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