3 WLAN Mode
3.6 Modulation Analysis Measurement
Scale/Div
Enables you to set the display X scale/division value.
Remote
Command
:DISPlay:EVM:WINDow3|4|5|7|8|14|15|16|20:TRACe:X[:SCALe]:PDIVision <time>
:DISPlay:EVM:WINDow3|4|5|7|8|14|15|16|20:TRACe:X[:SCALe]:PDIVision?
: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:PDIV 1
:DISP:EVM:WIND7:TRAC:X:PDIV?
Couplings If X Auto Scaling is On, this value is automatically determined by the measurement result. When you set
a value manually, X Auto Scaling automatically changes to Off
Preset 279.3 ! window 3-Mag Error
279.3 ! window 4-Phase Error
279.3 ! window 5-EVM
5.9 ! window 7-EVM vs. Symbol
window 8-EVM vs. Carrier
–
If Radio Std is 802.11ah 1MHz : 2.6 Carr
–
If Radio Std is 802.11a/g/j/p (OFDM), 801.11g (DSSS-OFDM): 5.2 Carr
–
If Radio Std is 802.11n20MHz, 802.11ac 20MHz or 802.11ah 2MHz: 5.6 Carr
–
If Radio Std is 802.11n 40MHz, 802.11ac 40M or 802.11ah 4MHz: 11.6 Carr
–
If Radio Std is 802.11ac80MHz, 802.11ac 80+80MHz or 802.11ah 8MHz: 22.4 Carr
–
If Radio Std is 802.11ac160MHz or 802.11ah 16MHz: 50Carr
1.6 us ! window 14-Preamble Freq ERROR vs. Time
window 15-IQ Gain Imbalance vs. Carrier
WLAN Mode User's &Programmer's Reference 1092