R&S FSH
Spectrum Analyzer Mode
Configuring Spectrum Measurements
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2.2.5.3 Working with a Second Trace
In spectrum mode, you can use two traces. Both traces are based on the same
settings, except the trace settings like the trace mode or the detector. You can use the
second trace to compare, for example, two different detector settings.
In the default state, only trace 1 is active.
M
Press the TRACE key.
M
Press the "Show" softkey.
M
Select the "Trace 2" menu item.
The R&S FSH shows the second
trace. The second trace is in a
different color. To show that the
second trace is active, the
R&S FSH labels the "Trace 2"
menu item with an [X].
After you have activated the
second trace, this is also the
active one. All actions (like
changing the detector or trace
mathematics) apply to the active
trace.
The trace indicator shows the currently active trace with a white background.
M
Press the "Select Trace" softkey.
Trace 1 becomes the active trace.
You can put both traces into the internal memory of the R&S FSH and restore them
later. Note that the memory trace 1 and memory trace 2 have the same color (i.e.
white).
2.2.5.4 Working with Memory Traces
You can save the image of both traces to the memory of the R&S FSH and later
restore it and compare it to a live trace. The memory trace is always colored white to
distinguish it from the live trace.
Measurement settings
Because the memory trace is just a bitmap, any modifications to measurement settings
like span or reference level are nor reflected in the memory trace.
When you save a data set, the R&S FSH also stores the associated trace in the trace
memory. If you restore it at a later time, you can display the memory trace as if it is a
normal memory trace.
