Rohde & Schwarz R&S ZNA Series - Page 1135

Command reference
R&S
®
ZNA
1135User Manual 1178.6462.02 ─ 29
An execution error is raised, if the calculated number of points is higher than the maxi-
mum number of sweep points the firmware allows (100001). To avoid this, reduce the
frequency span Δf (see [SENSe<Ch>:]SWEep:POINts on page 1511) and/or the
stop frequency d
stop
(see CALCulate<Chn>:TRANsform:DTFault:STOP) so that
2.6 · d
stop
· Δf / (v · c
0
) ≤ 100001 ,
where v denotes the velocity factor of the measured cable (see CALCulate<Chn>:
TRANsform:DTFault:SELect).
Suffix:
<Chn>
.
Channel number used to identify the active trace
Example:
*RST; :CALCulate1:TRANsform:DTFault:STATe ON
makes the active trace of channel 1 a DtF trace.
SENSe1:SWEep:POINts?
returns the default number of sweep points (201).
:CALCulate1:TRANsform:DTFault:STARt 0; STOP 100
widens the DtF distance window to 100m.
CALCulate1:TRANsform:DTFault:POINts
starts the "Auto Number of Points calculation". Now
SENSe1:SWEep:POINts?
returns an increased number of sweep points.
Usage: Event
Options: R&S ZNA-K2
Manual operation: See "Auto Number of Points" on page 832
CALCulate<Chn>:TRANsform:DTFault:SELect <DtfSelectCable>
Selects one of the available (predefined or user-defined) cable types for Distance to
Fault measurements.
Suffix:
<Chn>
.
Channel number used to identify the active trace.
Parameters:
<DtfSelectCable> Name of the cable type.
Example:
CALCulate1:TRANsform:DTFault:SELect '5088-HFLR'
Selects cable type "5088-HFLR".
Options: R&S ZNA-K2
Manual operation: See "Cable Type..." on page 833
CALCulate<Chn>:TRANsform:DTFault:STARt <Start>
CALCulate<Chn>:TRANsform:DTFault:STOP <Stop>
Defines the window of the Distance to Fault measurement using its start and stop dis-
tance.
SCPI command reference