Service manual

Instrument Functions WLAN TX Measurements
R&S
®
FSV-K91/91n/91ac/91p
100Operating Manual 1176.7649.02 ─ 04
Demodulator (IEEE 802.11a, b, g, j, p)
Specifies the modulation to be applied to the measured data. If the captured data uses
a different modulation scheme than specified by this field the results will be of limited
use. This field is only available if the "Signal Field Content" or the "Use Header Con-
tent" option is deactivated.
Remote command:
[SENSe:]DEMod:FORMat:BANalyze on page 187
Auto Guard Interval (IEEE 802.11n, SISO)
Specifies whether the Guard interval of the measured data should be automatically
detected or not
If enabled, the Guard Interval is detected from the input signal.
If disabled, the guard interval of the input signal can be specified with the "Guard Inter-
val" parameter.
Remote command:
CONFigure:WLAN:GTIMe:AUTO on page 157
Guard Interval (IEEE 802.11n, SISO)
Specifies the guard interval of the input signal.
When "Auto Guard Interval" is set to "ON" then "Guard Interval" is read only and dis-
plays the detected guard interval.
"Short"
Only the PPDUs with short guard interval are analyzed.
"Long"
Only the PPDUs with long guard interval are analyzed.
Remote command:
CONFigure:WLAN:GTIMe:SELect on page 158
Equal PPDU Length
Activates or deactivates the PPDU selection for measurement analysis according to
the range or specific number of data symbols/bytes.
Standard State Description
IEEE 802.11a, ac, j, n, p On Only PPDUs with exactly the number of symbols specified in the "Data
Symbols" field are considered for measurement analysis (see "Data
Symbols (IEEE 802.11a, ac, j, n, p)" on page 101).
Off Only PPDUs within the range of data symbols specified by the "Min
Data Symbols" and "Max Data Symbols" fields are considered for mea-
surement analysis. (See "Min Data Symbols (IEEE 802.11a, ac, j, n,
p)" on page 101 and "Max Data Symbols (IEEE 802.11a, ac, j, n, p)"
on page 101)
IEEE 802.11b, g (Single
Carrier)
On Only PPDUs with exactly the number of data bytes or duration speci-
fied in the "Payload Length" field are considered for measurement
analysis. (See "Payload Length (IEEE 802.11b, g)" on page 102)
Off Only PPDUs within the range of data bytes or duration specified by the
"Min Payload Length" and "Max Payload Length" fields are considered
for measurement analysis. (See "Min Payload Length (IEEE 802.11b,
g)" on page 102 and "Max Payload Length (IEEE 802.11b, g)"
on page 102)
Demod Settings Dialog Box