3 VMA Mode
3.1 Digital Demod Measurement
–
Iterative: Measurement will analyze the IQ data chunk by chunk between
Playback Start and Playback Stop, if the last chunk is not complete it will be
ignored and start from the first chunk again
Remote
Command
:CALCulate:<meas>:PLAY:MODE FIXed | ITERative
:CALCulate:<meas>:PLAY:MODE?
Where <meas> is the mnemonic for the current measurement, for example, EVM
Example For EVM measurement in 5G NR Mode:
:CALC:EVM:PLAY:MODE CONT
:CALC:EVM:PLAY:MODE?
Preset
FIX
State Saved Saved in instrument state
Range Fixed | Iterative
Playback Start
Once you have loaded an IQ data file using Recall, Recording, this control enables
you to specify the start position of the IQ data playback range to be analyzed. If its
value is less than zero, an additional zero is inserted at the beginning of the IQ data.
To go to a specific location in the recalled I/Q data, enter the desired Playback Start
point.
You can use this control to examine the data you recalled from the recording file.
How you proceed depends on whether you are in Continuous or Single mode. To
determine which mode you are in, look at the first panel on the left in the Meas Bar
above the data display.
If the panel looks like this, you are in Continuous mode:
If the panel looks like this, you are in Single mode:
401 Vector Modulation Analyzer Mode User's &Programmer's Reference
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