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6 List Sequence Measurements
List Sequence Measurements
filter is set to “RRC”. In these
cases, this parameter controls
the bT value for the Guassian
filter and alpha values for Raised
Cosine and RRC filters
[:SENSe]:EVM:FILTer:MEASurement:TYPE
NONE|RRC
Measurement
Filter
controls the measurement filter
type used for computing EVM
[:SENSe]:EVM:SYMBol:ADJust <percent>
Symbol
Timing Adjust
controls how far the FFT part of
the symbol is adjusted away
from the end of the symbol time.
Note that this parameter value is
negative, because the FFT start
time is moved back by this
parameter
[:SENSe]:EVM:STSequence LONG|SHORt
Sync Training
Sequence
specifies synchronization method
to use when synchronizing to the
start of the OFDM burst
CALCulate:EVM:PILot:TRACk:AMPLitude
OFF|ON|0|1
Track
Amplitude
specifies whether the analyzer
tracks amplitude changes in the
pilot subcarriers
:CALCulate:EVM:PILot:TRACk:PHASe
OFF|ON|0|1
Track Phase
specifies whether the analyzer
tracks phase changes in the pilot
subcarriers
:CALCulate:EVM:PILot:TRACk:TIMing
OFF|ON|0|1
Track Timing
specifies whether the analyzer
tracks timing changes in the
pilot subcarriers
:CALCulate:EVM:PILot:TRACk:MODE
POSTeq|PREeq
Pilot Tracking
Mode
This specifies the Pilot Tracking
Mode. The valid values are Post
EQ and Pre EQ.
:CALCulate:EVM:EQUalizer:TMODe
SEQuence|SDATa
Equalizer
Training
This specifies how the equalizer
is initialized, or “trained”. The
valid values are Channel
Estimation Seq Only and Channel
Estimation Seq & Data
:CALCulate:EVM:IQNorm OFF|ON|0|1
I/Q Normalize
specifies if the I/Q signals will be
normalized
[:SENSe]:EVM:COMPensate OFF|ON|0|1
I/Q
Compensation
allows to turn On or Off the
compensation for IQ Gain
Imbalance
:CALCulate:EVM:SPECtrum INVert|NORMal
Spectrum
Sets a spectrum to either normal
or to inverted for demodulation
related measurements
[:SENSe]:EVM:CRATe <frequency>
Chip Rate
specifies the fundamental chip
rate of the signal to be analyzed.
The value should be positive and
default is 11 MHz, which
Sequence Analyzer User's & Programmer's Reference
335