R&S ZVB - Page 132

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT GUI Reference
Trace Menu
Operating Manual 1145.1084.12 – 30 117
they appear in the list. The analyzer places no restriction on the combination of source ports and
port numbers of the measured wave quantity, so it is even possible to measure a
2
while the
source port is port 1 (e.g. in order to estimate the directivity of the coupler in the internal test set).
In the trace line and in the status bar, the source port is indicated in brackets, e.g. a1(P1) for the
wave quantity a
1
with source port no. 1.
 Detector selects the algorithm that is used to calculate the displayed trace from the individual
measurement points. In the Max. and RMS detector modes, it is possible to define the observation
time (Meas. Time) for a single measurement point. The Detector and Meas. Time controls are
both unavailable in true differential mode, because only the Normal detector provides consistent
phase information. The detector settings are available for ZVA and ZVT network analyzers only.
External generators
The measurement process for external generators Gen 1, Gen2... in the Source Port list differs from the
measurement process for internal source ports:
 An external generator always represents a permanent signal source that is switched on for all
partial measurements. In contrast, an analyzer port is switched off for partial measurements that
do not require a source signal. Exception: Internal ports can be configured as permanent sources
(see Gen setting in the Source section of the Port Configuration dialog).
 The external source is measured in the first partial measurement where an internal source is
active. This means that no separate partial measurement for the external generator signal is
needed. If no internal source is needed at all, the external source is measured in the first partial
measurement.
Single-ended and balanced wave quantities
If a balanced port configuration is selected and the True Differential Mode is active, the left Wave Quantity
pull-down list contains the following wave types:
 as, bs: Single-ended incident (a) or outgoing (b) wave. To select this wave type, the selected port
must be unbalanced. If the port configuration contains no unbalanced ports, the single-ended
wave quantities are hidden.
 ad, ac, bd, bc: Balanced incident (a) or outgoing (b) waves. d and c distinguish between the
differential and common mode; see Wave Quantities and Ratios.
Primed wave quantities
In addition to the wave quantities a and b, the analyzer provides "primed" wave quantities a', b'; see
Measurements at Different Frequencies.
If a mixer delay measurement is active, the unprimed wave quantities correspond to the lower tone, the
primed wave quantities correspond to the upper tone.
Remote
control:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "A1" |
"AP1"...
Create new trace and select name and measurement parameter:
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "A1" | "AP1"...
CALCulate<Chn>:FORMat:WQUType POWer | VOLTage