Rohde & Schwarz 1311.6010.22, User Manual

Page: 897 / 1451

Command Reference
R&S
®
ZNB/ZNBT
897 User Manual 1173.9163.02 ─ 53
Parameters:
<DtfPeakState> OFF|ON (0|1)
Example: *RST; :CALCulate1:TRANsform:DTFault:STATe ON
makes the active trace of channel 1 a DtF trace.
CALCulate1:TRANsform:DTFault:PEAK:STATe ON
enables DtF limit checking.
Options: R&S ZNB/ZNBT-K3
Manual operation: See "Fault Limit Check" on page 322
CALCulate<Chn>:TRANsform:DTFault:PEAK:THReshold <PeakThreshold>
If the active trace of channel <Chn> is a Distance to Fault (DtF) trace, this command
allows to set the fault limit for DtF limit checking.
Use
CALCulate<Chn>:TRANsform:DTFault:PEAK:STATe
to enable DtF limit
checking.
Suffix:
<Chn>
.
Channel number used to identify the active trace
Parameters:
<PeakThreshold> Fault limit
*RST:
-20 dB
Default unit: dB
Example: *RST; :CALCulate1:TRANsform:DTFault:STATe ON
makes the active trace of channel 1 a DtF trace.
CALCulate1:TRANsform:DTFault:PEAK:THReshold -30
sets the DtF limit to -30 dB.
Options: R&S ZNB/ZNBT-K3
Manual operation: See "Fault Limit" on page 322
CALCulate<Chn>:TRANsform:DTFault:POINts
If the active trace of channel <Chn> is a Distance to Fault (DtF) trace, this command
starts the "Auto Number of Points" calculation (see
"Auto Number of Points"
on page 320).
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 1200) 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
SCPI Command Reference