Service manual

Remote Commands for WLAN TX Measurements
R&S
®
FSV-K91/91n/91ac/91p
213Operating Manual 1176.7649.02 ─ 04
Spectrum flatness provides two basic graph types: an absolute power value graph
(ABS) and a relative group delay graph. Both are plotted on a per carrier basis. All 52
carriers are drawn, in addition to the unused 0 carrier. Both the absolute power and
group delay graph groups allow all the data points to be returned as one trace and an
average of all the channels as the other trace.
For example, the return data is either one single group of 53 carriers (or 57 within the n
standard) if the average trace is selected, or a repeating group of 53 (or 57 within the n
standard) carriers if all the data is requested.
Supported data formats (see FORMat[:DATA] on page 176): ASCii|REAL
TRACE1 ABS All analyzed traces
TRACE2 Group Delay All analyzed traces
TRACE3 ABS Average trace
TRACE4 Group Delay Average trace
Absolute power results are returned in dB or dB difference and group delay results are
returned in ns.
5.16.5 Spectrum Flatness 11n
There are two separate traces that are available with this measurement. Trace data for
a particular trace will only be returnable by querying the appropriate trace. The graph
shows the absolute power value graph (ABS), which is plotted on a per carrier basis.
All 56 carriers are drawn, in addition to the unused 0 carrier. The absolute power
groups will allow all the data points to be returned as one trace and an average of all
the channels as the other trace. For example, the return data will either be one single
group of 57 carriers if the average trace is selected or a repeating group of 57 carriers
if all the data is requested.
TRACE1 ABS All analyzed trains
TRACE2 ABS Average trace
Absolute power results are returned in dB.
Supported data formats (FORMat:DATA): ASCii|REAL
5.16.6 Spectrum Group Delay 11n
There are two separate traces that are available with this measurement. Trace data for
a particular trace will only be returnable by querying the appropriate trace. The graph
shows the relative group delay graph, which is plotted on a per carrier basis. All 56 car-
riers are drawn, in addition to the unused 0 carrier. The group delay graph groups will
allow all the data points to be returned as one trace and an average of all the channels
as the other trace. For example, the return data will either be one single group of 57
TRACe Subsystem (WLAN)