Track Phase (802.11b/g DSSS/CCK/PBCC)
: Refer to DSSS/CCK/PBCC Preset to Standard table
removes phase drift error from the demodulated trace data results.
is not enabled.
is enabled.
The parameter enables tracking of phase drift within the WLAN WLAN - Wireless Local Area Network: A system that includes the distribution system (DS), access points (APs), and portal entities. It is also the logical location of distribution and integration service functions of an extended service set (ESS). A WLAN system contains one or more APs and zero or more portals in addition to the DS. burst. This may be useful if the carrier frequency drifts significantly during a burst. Circular arcs in the constellation of the trace display is an indicator of phase drift. The parameter can be used to remove the phase drift, which will improve the IQ constellation trace and reduce the 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. data results. Frequency drift can also cause poor equalizer performance, so selecting Track Phase may improve equalizer results.
See Also
