Spectrum Analyzer Mode
R&S
®
Cable Rider ZPH
234
User Manual 1321.0950.02 ─ 07
The R&S Cable Rider ZPH shows the corresponding memory trace. If active, it
labels the "Memory <x>" menu item with an active radio button.
8.2.7.5
Using Trace Mathematics
Trace mathematics subtract the memory trace from the live trace and vice versa and
then display the results.
1. Press the [TRACE] key.
2. Select the "Trace
▶
Memory" softkey.
3. Select the "Show" softkey.
4. Select the "Trace Math" softkey.
5. Select the "Trace-Memory" or ""Memory-Trace"" menu item.
6. The R&S Cable Rider ZPH calculates and shows the resulting trace.
7. To turn off trace mathematics, select the "Off" menu item.
8.2.8
Using Markers
The spectrum analyzer mode provides marker and deltamarker functionality. In addi-
tion, you can use several marker functions.
●
Using Markers and Deltamarkers
..........................................................................234
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Positioning Markers
...............................................................................................235
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Positioning a Delta Marker
....................................................................................236
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Selecting the Marker Type
.................................................................................... 237
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Automatic Positioning of Markers
..........................................................................237
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Removing Markers
................................................................................................237
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Using Marker Search Limits
..................................................................................238
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Using Marker Functions
........................................................................................ 240
8.2.8.1
Using Markers and Deltamarkers
The R&S Cable Rider ZPH has six markers, five of which can be used as either mark-
ers or delta markers.
The markers cannot leave the trace and indicate the horizontal and vertical coordinates
of the point they are positioned on. The horizontal position of a marker is shown by a
vertical line which extends from the top to the bottom of the measurement diagram.
The marker list above the diagram area shows the exact coordinates of all markers in
use.
The position of a delta marker is indicated by a dashed line to distinguish it from a nor-
mal marker. The delta marker level is always a relative to the main marker level and so
the delta marker level unit is always dB. The delta marker frequency is always relative
to the main marker. The delta marker frequency is the frequency difference between
Configuring Spectrum Measurements
