Concepts and Features
R&S
®
ZNA
92
User Manual 1178.6462.02 ─ 12
log to find out more about the resulting frequncy ranges and possible frequency range
violations:
After the channel configuration is applied, the related setup dialog and mode can be
recalled at any time using the wrench icon in the main toolbar. When reopened, the
"Reset" button in the lower left corner allows you to unwind subsequent modifications
that were not yet applied.
5.2.3
Trace Formats
A trace format defines how a trace is represented in a diagram.
The R&S
ZNA supports the following trace formats:
●
"dB Mag" , "Phase" , "SWR" , "Unwr Phase" , "Lin Mag" ,
"Log Mag" , "Real" , "Imag" and "Delay" .
●
Complex trace formats "Polar" , "Smith" and "Inv Smith"
The VNA firmware allows arbitrary combinations of trace formats and measured quan-
tities. However, to extract useful information from the measured data, it is important to
select a trace format which is appropriate for the analysis of a particular measured
quantity; see
Chapter 5.2.3.3, "Measured Quantities and Trace Formats"
5.2.3.1
Cartesian Trace Formats
Cartesian trace formats assign a scalar response to the stimulus value (frequency,
power, or time). The response can be calculated from the measured quantity at the
related stimulus value, but it can also be the result of some mathematical transforma-
tion of the original (unformatted) trace.
Screen Elements