Spectral Emission Mask (802.11a/g/j/p OFDM)

Menu Path: Trace > Data > Channel X > Spectral Emission Mask where X is the selected channel.

Spectral Emission Mask shows the Spectrum of the detected burst, with SEM limit lines overlaid. It is a frequency-domain display (power vs. frequency) that allows the user to visually see out-of-band emissions relative to the spectral mask defined by the IEEE Institute of Electrical and Electronics Engineers. A US-based membership organisation that includes engineers, scientists, and students in electronics and related fields. The IEEE developed the 802 series wired and wireless LAN standards. Visit the IEEE at http://www.ieee.org 802.11 standard.

The following limit lines are displayed on this trace:

• SEM Relative (dBr) — Relative mask referenced to the signal's peak power. Shows how far out-of-band emissions are below the signal peak.

See Also

SEM Results

Available Trace Data (802.11a/g/j/p)