Cable and Antenna Test Mode
R&S
®
ZNH
129
User Manual 1334.5985.02 ─ 02
2. Select the "Start Dist" or "Stop Dist" softkey.
The R&S
ZNH opens an input field to specify the start distance or stop distance.
3. Enter the distance you want the display to start from and to end at.
In auto span mode, the R&S
ZNH adjusts the frequency settings in order to get the
best display resolution.
If you have set the span manually, the R&S
ZNH zooms in to the section of the
cable you have defined. The results maintain their accuracy in that case.
7.2.2.3
Setting the Frequency Range for CAT Measurements (except DTF)
For measurement on reflection, transmission or cable loss, the displayed frequency
range is defined by the span, the center frequency or start and stop frequencies.
Defining the span
The span you should select depends on the frequency band you are analyzing and the
frequency range you need information about.
1. Press the [FREQ/DIST] key.
2. Select the "Span" softkey.
The R&S
ZNH opens an input field to specify the frequency span.
3. Enter the span you require.
The R&S
ZNH sets the span you have entered.
Setting the displayed frequency range
In the default settings, the R&S
ZNH adjusts the start and stop frequency according to
the span and the center frequency, with the center frequency being in the middle of the
horizontal axis. Alternatively, you can directly set the start and stop frequency.
1. Press the [FREQ/DIST] key.
2. Select the "Center" softkey.
The R&S
ZNH opens an input field to specify the center frequency.
3. Enter the center frequency you require.
Alternatively, set the frequency range independent of span and center frequency.
4. Select the "Start" or "Stop" softkey.
The R&S
ZNH opens an input field to specify the frequency.
5. Enter the frequency you require.
7.2.2.4
Selecting a Signal Standard for CAT Measurements (except DTF)
When you perform the reflection, cable loss, smith chart or phase measurement, the
R&S
ZNH provides several configurations for measurements on a particular signal
Configuring Cable and Antenna Tests
