3 WLAN Mode
3.6 Modulation Analysis Measurement
Window Number Max
EVM vs. Carrier 8 250.0 dB
Preamble Freq Error 14 5.0 kHz
I/Q Gain Imbalance 15 250.0 dB
I/Q Quadrature Skew 16 36000.0°(deg)
Unused Tone Error 20 250.00 dBm
Power vs. Symbol 22 250.0 dBm
Scale/Div
For measurements that support a logarithmic Y-Axis, Scale/Div sets the height of
one division of the graticule in the current Y-Axis unit.
Scale/Div also determines the displayed amplitude range in the log plot graph.
Since there are usually 10 vertical graticule division on the display, the total
amplitude range of the graph is typically 10x this amount. For example, if Scale/Div
is 10 dB, then the total range of the graph is 100 dB.
Remote
Command
:DISPlay:EVM:WINDow3|4|5|7|8|14|15|16|20:TRACe:Y[:SCALe]:PDIVision <rel_ampl>
:DISPlay:EVM:WINDow3|4|5|7|8|14|15|16|20:TRACe:Y[: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:WIND3:TRAC:Y:PDIV 5
:DISP:EVM:WIND3:TRAC:Y:PDIV?
Preset The preset values for different windows are defined as follows:
Window Number Preset
Magnitude Error 3 3.0%
889 WLAN Mode User's &Programmer's Reference
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