R&S ZNB Series User Manual

GUI reference
R&S
®
ZNB/ZNBT
325User Manual 1173.9163.02 ─ 62
Properties: The stimulus variable appears on the horizontal axis, scaled linearly. The
phase of the complex quantity C, i.e. φ (C) = arctan ( Im(C) / Re(C) ), appears on the
vertical axis. φ (C) is measured relative to the phase at the start of the sweep (refer-
ence phase = 0°). In contrast to the normal Phase format, the display range is not limi-
ted to values between –180° and +180°. This format avoids artificial jumps of the trace
but can entail a relatively wide phase range if the sweep span is large.
Application: Phase measurements, e.g. phase distortion, deviation from linearity.
Tip: After changing to the "Unwr Phase" format, use the "Auto Scale Trace" function to
rescale the vertical axis and view the entire trace (see "Auto Scale Trace"
on page 329).
Remote command:
CALCulate<Chn>:FORMat UPHase
Lin Mag
Selects a Cartesian diagram with a linear vertical axis scale to display the magnitude of
the measured quantity.
Properties: The stimulus variable appears on the horizontal axis, scaled linearly. The
magnitude of the complex quantity C, i.e. |C| = sqrt ( Re(C)
2
+ Im(C)
2
), appears on the
vertical axis, also scaled linearly.
Application: Real measurement data (i.e. the stability factors and the DC voltages)
are always displayed in a Lin Mag diagram.
Tip (alternative formats): The magnitude of each complex quantity can be displayed
on a logarithmic scale. It is possible to view the real and imaginary parts instead of the
magnitude and phase.
Remote command:
CALCulate<Chn>:FORMat MLINear
Log Mag
Selects a Cartesian diagram with a logarithmic (base 10) vertical axis scale to display
the magnitude of the measured quantity.
Properties: The stimulus variable appears on the horizontal axis, scaled linearly. The
magnitude of the complex quantity C, i.e. |C| = sqrt ( Re(C)
2
+ Im(C)
2
), appears on the
vertical axis, scaled logarithmically.
Application: Impedance measurements
Remote command:
CALCulate<Chn>:FORMat LOGarithmic
Real
Selects a Cartesian diagram to display the real part of a complex measured quantity.
Properties: The stimulus variable appears on the horizontal axis, scaled linearly. The
real part Re(C) of the complex quantity C = Re(C) + j Im(C), appears on the vertical
axis, also scaled linearly.
Application: The real part of an impedance corresponds to its resistive portion.
Format softtool

R&S ZNB Series Specifications

General

Brand	R&S
Model	ZNB Series
Category	Measuring Instruments
Language	English