Spectrum Analyzer Mode
R&S
®
Cable Rider ZPH
207
User Manual 1321.0950.02 ─ 07
You can use the spectrogram playback for a detailed analysis of the signal levels over
time and compare signal details in the spectrum result display, e.g. with the help of
markers.
In addition to the time line (horizontal marker), you can also use (vertical) markers in
the spectrogram.
With the help of the marker and the time line, you are able to find the exact moment
when a specific event has occurred in the spectrum.
1. Press the [MARKER] key.
The R&S Cable Rider ZPH activates a marker and sets it on the peak level of the
currently displayed spectrum.
2. Use the rotary knob to move the marker on the horizontal axis to the frequency you
want to analyze or enter the frequency directly with the number keys.
3. Select the "Select Time Line" softkey and browse through the spectrums using the
rotary knob until the spectrum of interest is displayed in the upper window.
The timestamp of the selected time-line gives you a precise indication on when the
event shown in the spectrum occurred.
For more information on marker functionality, see
Chapter 8.2.8, "Using Markers"
,
on page 234.
Switching back to active spectrogram recording
To resume recording of a new spectrogram:
► Select the "Live Update" softkey at any time you are in playback mode.
The R&S Cable Rider ZPH switches back to perform live measurements.
Performing Spectrum Measurements
