Analyzer Display Formats; Log Magnitude Format; Phase Format - Agilent Technologies 8719ES User Manual

Operating Concepts

Analyzer Display Formats

Analyzer Display Formats

The key accesses the format menu. This menu allows you to select the
Format
appropriate display format for the measured data.
The analyzer automatically changes the units of measurement to correspond with the
displayed format. Special marker menus are available for the polar and Smith formats,
each providing several different marker types for readout of values.
The selected display format of a particular S-parameter or input is assigned to that
parameter. Thus if different S-parameters are measured, even if only one channel is used,
each parameter is shown in its selected format each time it is displayed.
The following illustrations show a reflection measurement of a bandpass filter displayed in
each of the available formats.

Log Magnitude Format

The softkey displays the log magnitude format. This is the standard Cartesian
LOG MAG
format used to display magnitude-only measurements of insertion loss, return loss, or
absolute power in dB versus frequency. The bandpass filter reflection data in a log
magnitude format is illustrated in
Figure 7-6 Log Magnitude Format

Phase Format

The softkey displays a Cartesian format of the phase portion of the data,
PHASE
measured in degrees. This format displays the phase shift versus frequency. The phase
response of the same filter in a phase-only format is illustrated in
7-24
Figure 7-6.
Figure 7-7.