Command Reference
R&S
®
ZNL/ZNLE
564
User Manual 1178.5966.02 ─ 07
Example:
To verify that "Trc2" is also active for remote control, use the channel suffix 1 after
CALC
(may be omitted) to reference the active trace in channel 1 and create a marker
"Mkr 1". The marker is assigned to "Trc2".
Example:
CALC:PAR:SEL 'Trc1'
;
CALC1:MARK ON
Select the old default trace "Trc1" as the active trace for remote control. Create a new
marker to verify that "Trc1" is now the active trace in channel 1.
In the SCPI command description, the numeric suffix
<Ch>
is used for channel settings
(it denotes the configured channel), whereas
<Chn>
is used for trace settings (it refers
to the active trace in the channel).
10.4.2.3
Initiating Measurements, Speed Considerations
After a reset the network analyzer measures in continuous mode. The displayed trace
shows the result of the last sweep and is continuously updated. This provides a perma-
nent visual control over the measurement and the effect of any analyzer settings.
In remote control, it is advisable to follow a different approach in order use the analyz-
er's resources to full capacity and gain measurement speed. The following principles
can help to optimize a remote control program (see also programming example in
Chapter 10.6.1.1, "Typical Stages of a Remote Control Program"
●
Switch off the measurement while configuring your instrument.
●
Use a minimum number of suitably positioned sweep points.
●
Start a single sweep, observing proper command synchronization, and retrieve
your results.
The following command sequence performs a single sweep in a single channel.
Example:
*RST; :INITiate:CONTinuous:ALL OFF
Activate single sweep mode for all channels (including the channels created later).
INITiate1:IMMediate; *WAI
Start a single sweep in channel no. 1, wait until the sweep is terminated before pro-
ceeding to the next command.
Sweeps in several channels
It is also possible to subdivide the channels within a channel setup into active and inac-
tive channels. The analyzer will then measure in the subset of active channels only;
see program example for
CONFigure:CHANnel<Ch>:MEASure[:STATe]
VNA Remote Control Basics
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