3 WLAN Mode
3.6 Modulation Analysis Measurement
3.6.9.2 X Scale
Accesses controls that enable you to configure the Sweep and Control functions of
the analyzer, such as Sweep Rules.
Ref Value
Controls the X value of the selected trace at the chosen X Reference Position.
Remote
Command
:DISPlay:EVM:WINDow3|4|5|7|8|14|15|16|20:TRACe:X[:SCALe]:RLEVel <real>
:DISPlay:EVM:WINDow3|4|5|7|8|14|15|16|20:TRACe:X[:SCALe]:RLEVel?
:The applicable windows are numbered as follows:
:Window :Number
:Magnitude Error :3
:Phase Error :4
:EVM vs. Chips :5
:EVM vs. Symbol :7
:EVM vs. Carrier :8
:Preamble Freq Error :14
:I/Q Gain Imbalance :15
:I/Q Quadrature Skew :16
:Unused Tone Error :20
:Power vs. Symbol :22
Example
:DISP:EVM:WIND7:TRAC:X:RLEV 1
:DISP:EVM:WIND7:TRAC:X:RLEV?
Couplings If Auto Scaling is On, this value is automatically determined by the measurement result. When a value is
set manually, Auto Scaling is automatically set to Off
Preset 22 chips ! window 3-Mag Error
22 chips ! window 4-Phase Error
22 chips ! window 5-EVM
0 symbols ! window 7-EVM vs. Symbol
0.0 us ! window 14-Preamble Freq ERROR vs. Time
0 symbols ! window-22 Power vs. Symbol
window 8-EVM vs. Carrier,
window 15-IQ Gain Imbalance vs. Carrier,
window 16-IQ Quadrature Skew vs. Carrier:
–
If Radio Std is 802.11ah 1MHz : -13 Carr
–
If Radio Std is 802.11a/g/j/p(OFDM), 801.11g (DSSS-OFDM): -26 Carr
WLAN Mode User's &Programmer's Reference 1090
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