SymClkErr (Custom OFDM)
is the symbol clock frequency error, which is the difference between the ideal and actual symbol clock frequency (in ppm). A symbol clock frequency that is less than ideal will cause the OFDM Orthogonal Frequency Division Multiplexing: OFDM employs multiple overlapping radio frequency carriers, each operating at a carefully chosen frequency that is Orthogonal to the others, to produce a transmission scheme that supports higher bit rates due to parallel channel operation. OFDM is an alternative tranmission scheme to DSSS and FHSS. symbol time to take longer than required resulting in a decreased OFDM subcarrier spacing. A symbol clock frequency that is greater than ideal will cause the symbol times to take less time than required resulting in an increased OFDM subcarrier spacing. In either case this creates subcarrier interference and increases the signal's EVM Error vector magnitude (EVM): A quality metric in digital communication systems. See the EVM metric in the Error Summary Table topic in each demodulator for more information on how EVM is calculated for that modulation format.. The resultant error value is a unitless fraction, which is multiplied by 1,000,000 to obtain SymClkErr in ppm.
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See Also
Available Error Summary Results
