Freq Err (Hz) (MB-OFDM)

Menu Path: Trace > Data > Composite > Band Errs

Freq Err (Frequency Error) displays the error between the carrier frequency, relative to the VSA's center frequency. This parameter is displayed in Hertz and is the amount of frequency shift from the VSA's center frequency that the VSA must perform to achieve carrier lock.

The frequency error reported in the summary table is the value from the final frequency estimation based on the channel estimation sequence, with a fine adjustment made for any frequency error detected in the pilot tracking. The pilot tracking does not correct the signal for frequency errors. However, the overall frequency error is removed and reported in Frequency Error. Errors in RF Radio Frequency: A generic term for radio-based technologies, operating between the Low Frequency range (30k Hz) and the Extra High Frequency range (300 GHz). frequency, LO frequency, or digitizer clock rate could all appear as carrier frequency error.

Results of this parameter appear for each of the Bands: Low, Mid, and High. See the Band Group and Band Frequencies table for more information about each Band.