3 VMA Mode
3.1 Digital Demod Measurement
Sub-field Variable Definition
13 Phase Error
14 Channel Frequency Response (Amplitude)
15 Channel Frequency Response (Phase)
16 Channel Frequency Response (Group Delay)
17 EQ impulse response
18 Demod Bits
19 BER Results
20 IQ Meas Time (Group Delay)
21 IQ Ref Time (Group Delay)
22 ccEVM
23 Frame Summary
24 ccEVM vs Symbol magnitude
3.1.1.1 Summary of Result Types
RI Return Value
00 Returns unprocessed I/Q captured trace data, as a series of trace point values. The I values are listed first in
each pair, using 0 through even-indexed values. The Q values are the odd-indexed values
01
or no n
value
See "Measurement Results for RI = 01 or Not Specified" on page 186
02 PASS/FAIL results of Segment SI
See "Measurement Results for RI = 02" on page 201
03 Search Time
Returns I/Q trace data which is used to burst search, as a series of trace point values. The I values are listed
first in each pair, using the 0 through even-indexed values. The Q values are the odd-indexed values
The length is determined by "Search Length" on page 324
04 Time of Segment SI
Returns pre-demodulated I/Q trace data which is used to demodulation, as a series of trace point values. The I
values are listed first in each pair, using the 0 through even-indexed values. The Q values are the odd-indexed
values
The length is determined by "Meas Interval" on page 334
05 Spectrum
Returns the spectrum of the pre-demodulated I/Q trace data
06 Meas Time of Segment SI
Dependent on Modulation Format. See "Measurement Results for RI = 06" on page 203
07 Dependent on Modulation Format. See "Measurement Results for RI = 07" on page 204
08 Dependent on Modulation Format. See "Measurement Results for RI = 08" on page 205
185 Vector Modulation Analyzer Mode User's &Programmer's Reference
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