3 VMA Mode
3.1 Digital Demod Measurement
# Name A/P Description Unit, if any
11 Frequency Error A A floating point number of the frequency error in the
measured signal
Hz
12 Clock Error A A floating point number of symbol clock error Hz
13 I/Q Offset A A floating point number of the I and Q error (magnitude
squared) offset from the origin
dB
14 Quad Error A A floating point number of orthogonal error between the I and
Q signals
°
15 Gain Imbalance A A floating point number of the gain ratio between the I and Q
signals
dB
16 Amplitude Droop A A floating point number of the change in the magnitude of the
signal over the entire measurement
dB/sym
Modulation Formats: BPSK, DBPSK
# Name A/P Description Unit, if any
1 Transmit Power A A floating point number of transmit power dBm
2 RMS EVM A A floating point number of EVM over the entire measurement
area
%
3 Peak EVM P A floating point number of the peak EVM in the measurement
area
%
4 Peak EVM Index P Location of the symbol that has the largest EVM
5 RMS Magnitude
Error
A A floating point number of the average magnitude error over
the entire measurement area
%
6 Peak Magnitude
Error
P A floating point number of the peak magnitude error in the
measurement area
%
7 Peak Magnitude
Error Index
P Location of the symbol that has the largest magnitude error
8 RMS Phase Error A A floating point number of the average phase error over the
entire measurement area
°
9 Peak Phase Error P A floating point number of the peak phase error in the
measurement area
°
10 Peak Phase Error
Index
P Location of the symbol that has the largest phase error
11 Frequency Error A A floating point number of the frequency error in the
measured signal
Hz
12 I/Q Offset A A floating point number of the I and Q error (magnitude
squared) offset from the origin
dB
13 Amplitude Droop A A floating point number of the change in the magnitude of the
signal over the entire measurement
dB/sym
14 Clock Error A A floating point number of symbol clock error Hz
191 Vector Modulation Analyzer Mode User's &Programmer's Reference
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