Common Analysis and Display Functions
R&S
®
FSMR3000
218
User Manual 1179.0116.02 ─ 02
Example:
Assume the following measurement parameters:
●
Start frequency: 1.000 GHz
●
Stop frequency: 6.000 GHz
●
=> Span: 5 GHz
●
measurement points: 1000
●
=>bin: 5 MHz (span/<measurement points>)
The first trace point is displayed at (<f
start
> + bin/2) = 1.0025 GHz.
The last trace point is displayed at (<f
stop
> - bin/2) = 5.9975 GHz.
A marker placed at 1.000 GHz indicates the same result as a marker placed at 1.0025
GHz, since no other value is available.
For trace values in the frequency domain, you can select which method is used to
determine the x-values in the frequency domain, that is:
●
In the result displays
●
When exporting traces
●
command
Note the possible minor discrepancy between marker values and trace values using
the start/stop method.
Analyzing Several Traces - Trace Mode
If several measurement are performed one after the other, or continuous measurement
are performed, the trace mode determines how the data for subsequent traces is pro-
cessed. After each measurement, the trace mode determines whether:
●
The data is frozen (View)
●
The data is hidden (Blank)
●
The data is replaced by new values (Clear Write)
●
The data is replaced selectively (Max Hold, Min Hold, Average)
Each time the trace mode is changed, the selected trace memory is cleared.
The R&S
FSMR3 supports the following trace modes:
Table 8-3: Overview of available trace modes
Trace Mode
Description
Blank
Hides the selected trace.
Clear Write
Overwrite mode: the trace is overwritten by each measurement. This is the default set-
ting.
All available detectors can be selected.
Max Hold
The maximum value is determined over several measurements and displayed. The
R&S
FSMR3 saves the measurement result in the trace memory only if the new value
is greater than the previous one.
Trace Configuration