3 VMA Mode
3.2 Custom OFDM Measurement
Common Pilot Error
Shows the time domain error vector trace data results. The trace contains the
computed error vectors between IQ Meas Time and IQ Ref Time at each point in
time. The values of the error vectors are usually plotted as a magnitude.
Example
:DISP:OFDM:WIND2:DATA CPER
Sets the second window data to Common Pilot Error
Error Vector 3D
Shows modulation error for each resource element
Example
:DISP:OFDM:WIND3:DATA ERR3D
Sets the third window data to Error Vector 3D trace
ccEVM vs Symbol
This trace shows ccEVM result per Symbol.
Example
:DISP:OFDM:WIND2:DATA CES
Sets the second window data to ccEVM vs Symbol
Response
Displays the trace data choices that show equalizer response results.
CH Freq Response
Shows the channel frequency response for which the equalizer is correcting. It is
computed as the inverse of the equalization filter’s frequency response.
Example
:DISP:OFDM:WIND2:DATA CHFR
Sets the second window data to CH Freq Response
EQ Impulse Response
Shows the impulse response of the equalization filter.
Example
:DISP:OFDM:WIND2:DATA EQIR
Sets the second window data to EQ Impulse Response
417 Vector Modulation Analyzer Mode User's &Programmer's Reference