R&S ZVB - Initiating Measurements, Speed Considerations

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Remote Control
Basic Remote Control Concepts
Operating Manual 1145.1084.12 – 30 590
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 permanent 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 analyzer's resources to full
capacity and gain measurement speed. The following principles can help to optimize a remote control
program (see also programming example Typical Stages of a Measurement):
 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.
 Ensure that the display is switched off while the analyzer operates in remote mode
(SYSTem:DISPlay:UPDate OFF, default setting).
 If you have to change several instrument settings between two consecutive sweeps, avoid using
SYSTem:SETTings:UPDate ONCE, since this mode may delay the measurement.
The following command sequence performs a single sweep in a single channel.
*RST; INITiate:CONTinous OFF
Activate single sweep mode for all channels (including the channels created later).
INITiate:SCOPe SING
State that a single sweep will be performed in the active channel only.
INITiate2:IMMediate; *WAI
Start a single sweep in channel no. 2, wait until the sweep is terminated before proceeding to the next
command (see Command Synchronization).
Addressing Traces and Channels
The analyzer provides a variety of schemes for addressing traces and channels and for querying trace
and channel names. The following tables give an overview.
Addressing channels
Method
Commands / Example
Channel number <Ch> as a numeric
suffix
CONFigure:CHANnel<Ch>[:STATe] ON
Query all channel names
CONFigure:CHANnel<Ch>:CATalog? (returns the names of all channels; the
channel suffix is ignored)
Assign or query channel name of a
channel numbered <Ch>
CONFigure:CHANnel<Ch>:NAME 'ABCD'
CONFigure:CHANnel<Ch>:NAME? (returns 'ABCD')
Query channel number assigned to a
channel named 'ABCD'
CONFigure:CHANnel<Ch>:NAME:ID? 'ABCD' (returns the actual channel number,
the channel suffix is ignored)
Addressing traces
Method
Commands / Example
Channel number <Chn> used as a reference
CALCulate<Chn>:MARKer<Mk>[:STATe] ON