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Concepts and features
R&S
®
ZND
81
User Manual 1173.9557.02 ─ 61
R&S ZND-K5
R&S ZND-K6
max frequency 4.5 GHz
unidirectional P1→P2
max frequency 4.5 GHz
bidirectional P1↔P2
max frequency 8.5 GHz
bidirectional P1↔P2
max frequency 8.5 GHz
unidirectional P1→P2
R&S
ZND-K1
R&S
ZND-K8
With unidirectional operation, the following restrictions apply:
●
S12, S22 and wave quantities of the reverse direction (port 2 as source) are not
available
●
Other (derived) results that require driving both ports, such as Y- and Z-parameters
or stability parameters, are not available
●
Balanced mode is not available
●
Calibrations that require driving both ports are not available (see
●
Cal kit characterizations cannot be performed
●
Only automatic spur avoidance is possible
4.1.4.4
Stimulus and sweep types
The function of the STIMULUS hardkeys [START], [STOP], [CENTER] and [SPAN]
depends on the sweep type.
Table 4-1: Function of STIMULUS keys
Sweep type
[START](unit)
[STOP] (unit)
[CENTER] (unit)
[SPAN] (unit)
"Lin Freq"
"Start Frequency" (Hz)
"Stop Frequency" (Hz)
"Center Frequency"
(Hz)
"Span Frequency" (Hz)
"Log Freq"
"Start Frequency" (Hz)
"Stop Frequency" (Hz)
–
–
"Segmented"
–
–
–
–
"Power"
"Start Power" (dBm)
"Stop Power" (dBm)
"CW Frequency" (Hz)
"CW Frequency" (Hz)
"CW Mode"
"CW Frequency" (Hz)
"Number of Points" (-)
"CW Frequency" (Hz)
"CW Frequency" (Hz)
"Time"
"CW Frequency" (Hz)
"Stop Time" (s)
"CW Frequency" (Hz)
"CW Frequency" (Hz)
The ranges of numerical values must be compatible with the instrument model. The
conditions for the stimulus range depend on the sweep type:
●
"Lin Freq" / "Log Freq" / "Segmented"
The supported frequency range is listed in
.
–
For "Lin Freq" and "Log Freq" sweeps, if the number of sweep points is greater
than 1, the stop frequency must be greater than the start frequency and the
span must be
≥
1 Hz. If a stop frequency smaller or equal than the current start
frequency is set, then the start frequency is adjusted and vice versa.
Basic concepts
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