Cable and Antenna Test Mode
R&S
®
Cable Rider ZPH
123
User Manual 1321.0950.02 ─ 03
7.2.4.1
Selecting the Sweep Mode
The sweep mode is the way the R&S Cable Rider ZPH performs the measurement.
In its default state, the R&S Cable Rider ZPH measures continuously. In this mode, the
R&S Cable Rider ZPH automatically repeats the sweep in the defined range of the hor-
izontal axis and updates the trace accordingly after it has finished with one sweep.
Single sweep mode performs the sweep in the defined span once, then the R&S Cable
Rider ZPH goes into an idle state. If the trace averaging is set, the R&S Cable Rider
ZPH performs the sweep a certain number of times (depending on the number of aver-
ages you have set) over the defined span and then stops measuring.
For more information on trace setting, see
Chapter 7.3.1, "Working with Traces"
7.2.4.2
Changing the Number of Measurement Points
The number of (measurement) points defines the number of measurements performed
during a sweep. Thus, it indirectly sets the frequencies of those measurements. The
distance from one measurement point to the next depends on the currently set fre-
quency range (span divided by number of points). However, the measurement points
are spread evenly over the selected frequency range.
The number of points also defines the resolution and, therefore, the accuracy of the
measurement and affects the measurement time. In the default state, the R&S Cable
Rider ZPH evaluates 201 measurement points. This number allows for fast measure-
ment times and sufficient accuracy. For measurements with a higher or lower fre-
quency resolution, you can change the number of measurement points. Note that mea-
surement times increase if you set a higher number of measurement points.
1. Press the SWEEP key.
2. Select the "Points" softkey.
The R&S Cable Rider ZPH opens an input field to specify the number of measure-
ment points. Up to 2501 measurement points is possible for measurement.
3. Enter the number of measurement points you require.
The R&S Cable Rider ZPH sets the number of measurement points used for the
measurement.
7.2.4.3
Measurements Hold
The R&S Cable Rider ZPH provides a hold function that stops the display update and
leaves room for further analysis of the measurement results.
1. Press the SWEEP key.
2. Select the "Hold" softkey.
The R&S Cable Rider ZPH interrupt the display update.
Configuring Cable and Antenna Tests
