3 Short-Range Comms & IoT Mode
3.2 Modulation Analysis Measurement
In this mode, turn the knob or use the Up/Down keys on the front panel to move
through records in the recording. You will see Playback Start change from 0 to
successively higher values as you move deeper into the data.
Single mode
In this mode, you can only look at one record. Set the Playback Start time to the
desired offset from zero, then press Restart. A single record will be displayed. Note
that until you press Restart, the “invalid data” indicator (yellow asterisk) is displayed
in each window. After you press Restart, the invalid data indicator disappears.
Remote
Command
:CALCulate:<meas>:PLAY:STARt <time>
:CALCulate:<meas>:PLAY:STARt?
Where <meas> is the mnemonic for the current measurement, for example, EVM
Example For EVM measurement in 5G NR Mode:
:CALC:EVM:PLAY:STAR 0.01 s
:CALC:EVM:PLAY:STAR?
Preset 0
State Saved Saved in instrument state
Min/Max –/+Sample Points in IQ file / Sample Rate in IQ file
Playback Stop
Specifies the stop position of the IQ data playback range to be analyzed, when
“Playback Mode” is iterative.
Remote
Command
:CALCulate:<meas>:PLAY:STOP <time>
:CALCulate:<meas>:PLAY:STOP?
Where <meas> is the mnemonic for the current measurement, for example, EVM
Example For EVM measurement in 5G NR Mode:
:CALC:EVM:PLAY:STOP 0.01 s
:CALC:EVM:PLAY:STOP?
Preset 0
State Saved No
Min 0
Max Sample Points in IQ file x Sample Rate
Step Forward
Move to next chunk of IQ data when "Playback Mode" on page 538 is iterative.
Remote
:CALCulate:<meas>:PLAY:STEP:FORWard
308 Short Range Comms & IoT Mode User's &Programmer's Reference
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