FSK Err (Digital Demod)

FSK Err (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. Error) is computed by comparing the FSK reference signal with the FSK signal measured at the symbol locations as follows:

$image\FSKerr1_wmf.jpg$

Points / Symbols are not used.

The FSK Err in the Error Summary Data table is shown as a percentage of the deviation. To derive this percentage, the VSA computes the rms average of the FSK error at all symbol locations, divides by the peak deviation and multiplies by 100:

$image\FSKerr2_wmf.jpg$

where Deviation is the peak deviation of the signal. The peak deviation value is displayed on the Error Summary Data table.

The Error Summary Data table shows the rms FSK Error, the peak FSK Error, and the location of the peak FSK Error.