3 WLAN Mode
3.6 Modulation Analysis Measurement
Notes When Symbol Timing Adjust is Auto checked, the demodulation algorithm chooses the symbol timing
adjust value automatically;
When Symbol Timing Adjust is Auto unchecked, the manually set Symbol Timing Adjust value is used in
demodulation
The Min Value of Symbol Timing Adjust is -100.0 * Guard Interval
The value of Symbol Timing Adjust clipped to times of 1/128. (For 11n, Bebop ‘s support can be clipped
to 1/256, to keep simple, we use 1/128 also)
Preset -3.125%
OFF
State Saved Saved in instrument state
Saved in instrument state
Range Auto|Man
Min -100.0 * Guard Interval
Max 0.0
Track Amplitude
This parameter is available when Radio Std is NOT 802.11b/g(DSSS/CCK/PBCC).
Track Amplitude specifies whether the analyzer tracks amplitude changes in the
pilot subcarriers. When Track Amplitude is selected, the analyzer applies pilot
subcarrier amplitude error correction to the pilot and data subcarriers. This is in
addition to Track Phase and Track Timing error correction, if selected.
Remote
Command
:CALCulate:EVM:PILot:TRACk:AMPLitude OFF | ON | 0 | 1
:CALCulate:EVM:PILot:TRACk:AMPLitude?
Example
:CALC:EVM:PIL:TRAC:AMPL 1
:CALC:EVM:PIL:TRAC:AMPL?
Preset
OFF
State Saved Saved in instrument state
Range On|Off
Track Phase
Radio Std is NOT 802.11b/g (DSSS/CCK/PBCC)
Specifies whether the analyzer tracks phase changes and which data part will be
used to calculate the phase error correction. When Track Phase is ON, the analyzer
applies tracked phase error correction to the pilot and data subcarriers. If Track
Phase from pilot, only pilot will be used to calculate phase error correction; if Track
Phase from pilot & data, both pilot and data carriers will be used to calculate phase
1013 WLAN Mode User's &Programmer's Reference
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