R&S ZNL Series - Page 1073

Command reference
R&S
®
ZNL/ZNLE
1073User Manual 1178.5966.02 ─ 20
Retrieving the results of previous sweeps
The commands CALCulate<Ch>:DATA:NSWeep...? SDATa,
<Trace_Hist_Count> retrieve the results of any sweep within a previously defined
single sweep group. This means that, in single sweep mode, you can first measure a
specified number of sweeps (SENSe<Ch>:SWEep:COUNt <sweeps>) and then read
any of the data traces acquired.
This feature has no equivalent in manual control where always the last data trace is
displayed.
// Reset the analyzer
*RST
// Create a second channel with a second trace
:CALCULATE2:PARAMETER:SDEFINE "Trc2","S11"
:CALCULATE2:PARAMETER:SELECT "Trc2"
:DISPLAY:WINDOW2:STATE ON
:DISPLAY:WINDOW2:TRACE1:FEED 'Trc2'
// Select active trace for the created channel 2. Adjust the number of sweep
points.
:CALCULATE2:PARAMETER:SELECT "Trc2"
:SENSE1:SWEEP:POINTS 3
:SENSE2:SWEEP:POINTS 4
// Set sweep time and sweep count for the channels
(3 traces per single sweep in channel 1, 4 traces in channel 2)
:SENSE1:SWEEP:TIME 1 S
:SENSE2:SWEEP:TIME 1 S
:SENSE1:SWEEP:COUNT 3
:SENSE2:SWEEP:COUNT 4
// 1st Alternative: Reverse reading with command synchronization
Select single sweep mode and measure a single sweep group for channels no. 1 and 2
:INITIATE:CONTinuous:ALL OFF
:INITIATE:IMMEDIATE:ALL; *WAI
Read trace data (without history, i.e. the last trace acquired in each channel)
:CALCULATE1:DATA? SDATA
:CALCULATE2:DATA? SDATA
Read last and previous trace data in channels 1 and 2
:CALCULATE1:DATA:NSWEEP? SDATA, 1 // last trace data
:CALCULATE1:DATA:NSWEEP? SDATA, 3 // previous trace data
:CALCULATE2:DATA:NSWEEP? SDATA, 1 // last trace data
:CALCULATE2:DATA:NSWEEP? SDATA, 4 // previous trace data
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