Error Vector Spec (TD-SCDMA)

Menu Path: Trace > Data > Channel 1 Comp > Error Vector Spec

When TD-SCDMA Demodulation is enabled, the composite Error Vector Spec trace data shows the spectrum of the Composite Error Vector Time trace data. In other words, the VSA derives the composite Error Vector Time trace data, and then windows and FFTs the data to produce the composite Error Vector Spectrum trace data.

Trace Data Results

The trace data is computed from data for the specified Analysis Sub-frame and Analysis Timeslot within the measurement Result Length.

Marker Frequency Correction

The VSA's demodulator removes carrier-frequency error. Therefore, in the composite error vector spectrum display, add the carrier-frequency error to marker readouts to obtain exact frequency information. The carrier-frequency error (Freq Err) is shown in the Composite Error Summary Table.

See Also

Channel 1 Comp Trace Data

Trace Data (TD-SCDMA)