3 WLAN Mode
3.6 Modulation Analysis Measurement
Radio Std = 802.11be 320MHz
:DEM:BE320:LTF:SIZE AUTO
:DEM:BE320:LTFSIZE?
Couplings When Radio Std Detection is set to Auto Detect, EHT-LTF Size is coupled to “Auto Detect”
When EHT Guard Interval is set to “Auto Detect”, EHT-LTF Size is coupled to “Auto Detect”
When EHT Guard Interval is set to “From SIG Syms”, EHT-LTF Size is coupled to “From SIG Syms”
Preset
AUTO
State Saved Saved in instrument state
Range
AUTO|S1X|S2X|S4X|SIG
3.6.8.3 Time
Accesses the meas time menu for the current measurement.
Search Length
Sets the length of time to acquire the input signal. This defines the length of time
that the burst search is performed.
The analyzer searches within the specified search length, find all burst positions
within this search length, and demodulates burst one by one if average state is on
and average number is still not reached. If one acquisition does not include total
required bursts, multi capture is needed. So, if you want to get results for continues
bursts, make sure search length is large enough to include all the bursts. Otherwise
multi acquisitions will be performed.
Remote Command
[:SENSe]:EVM:TIME:SLENgth <time>
[:SENSe]:EVM:TIME:SLENgth?
Example
:EVM:TIME:SLEN 1ms
:EVM:TIME:SLEN?
Preset 1.0 ms
State Saved Saved in instrument state
Min
–
If Radio Std is 802.11a/g/j/p (OFDM) or 801.11g (DSSS-OFDM):
–
If Result Length is set to Man, Min Value will be:
1.17* (Result Length+9) *(1+Guard Interval))/ Subcarrier Spacings
–
If Result Length is set to Auto, Min Value will be:
1.17* (Max Result Length+9) *(1+Guard Interval))/ Subcarrier Spacings
–
If Radio Std is 802.11n (20 MHz)/(40 MHz):
–
If Result Length is set to Man, Min Value will be:
WLAN Mode User's &Programmer's Reference 1006
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