Getting Started
R&S
®
ZNB/ZNBT
67
User Manual 1173.9163.02 ─ 38
1. Connect the DUT between test ports 1 and 2 of the network analyzer as shown
above.
2. Proceed as described in
Chapter 3.1.7, "Starting the Analyzer and Shutting Down"
on page 18, to switch on the instrument and start the VNA application.
3. Use the SYSTEM – PRESET key to perform a factory preset of the analyzer.
The analyzer is now set to its default state. The default measured quantity is the
transmission S-parameter S
21
.
Select TRACE – TRACE CONFIG and use the control elements in the "Traces" softtool
panel if you wish to create a new trace or a new diagram.
3.4.1.2
Selecting the Sweep Range and Other Parameters
After a system preset the display shows a diagram with a dB magnitude scale, and the
S-parameter S
21
is selected as a measured quantity. This S-parameter is the forward
transmission coefficient of the DUT, defined as the ratio of the transmitted wave at the
DUT's output port (port no. 2) to the incident wave at the DUT's input port (port no. 1).
The R&S
ZNB/ZNBT automatically adjusts its internal source and receiver to the
selected measured quantities: For an S
21
measurement, a stimulus signal (termed a
1
)
is transmitted at the analyzer port no. 1; the transmitted wave (termed b
2
) is measured
Performing Measurements
