Tone Nulling Status (MB-OFDM)

Menu Path: Trace > Data > Composite > Tone Nulling

Tone Nulling Status shows which carriers have been "nulled" (removed) per the standard. See About Opt BHB: Multiband-OFDM. A subcarrier has a value of 1 if it is used and a value of 0 if it is nulled as determined by whether the power is above or below the tone nulling threshold. The tone nulling threshold can be entered in the Threshold text box. Up to 26 of the 122 subcarriers in each band may be selectively disabled (not transmitted). The following is an example of a tone nulled display.

The Enable Tone Nulling checkbox in the Advanced tab of MB-OFDM Demod Properties dialog box must be selected for Tone Nulling Status data to be available.

See Also

Enable Tone Nulling (MB-OFDM)

Available Trace Data (MB-OFDM)