Measurements and Results
R&S
®
FSVA3000/ R&S
®
FSV3000
211
User Manual 1178.8520.02 ─ 01
For details on defining the limits (masks), see
Chapter 7.6.4.2, "Limit Lines in SEM
Range definition
After a preset, the sweep list contains a set of default ranges and parameters. For
each range, you can change the parameters listed above. You can insert or delete
ranges.
The changes of the sweep list are only kept until you load another parameter set (by
pressing [PRESET] or by loading an XML file). If you want a parameter set to be avail-
able permanently, create an XML file for this configuration (for details refer to
save a user-defined SEM settings file"
If you load one of the provided XML files, the sweep list contains ranges and parame-
ters according to the selected standard.
Reference range
The range containing the center frequency is defined as the reference range for all
other ranges in the sweep list. All range limits are defined in relation to the reference
range. The TX power used as a reference for all power level results in the result sum-
mary is also calculated for this reference range. You can define whether the power
used for reference is the peak power level or the integrated power of the reference
range. In the "Sweep List" , the reference range is highlighted in blue and cannot be
deleted.
Rules
The following rules apply to ranges:
●
The minimum span of a range is 20 Hz.
●
The individual ranges must not overlap (but can have gaps).
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The maximum number of ranges is 30.
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The minimum number of ranges is 3.
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The reference range cannot be deleted.
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Center the reference range on the center frequency.
●
The current "Tx Bandwidth" defines the minimum span of the reference range (see
●
Define frequency values for each range relative to the center frequency.
To change the start frequency of the first range or the stop frequency of the last range,
select the appropriate span with the [SPAN] key. You can define a span that is smaller
than the combined span of all ranges. In this case, the measurement includes only the
ranges that lie within the defined span and have a minimum span of 20
Hz. The first
and last ranges are adapted to the given span as long as the minimum span of 20 Hz
is not violated.
Sweep points
You can define a minimum number of sweep points for each range. The total number
of available sweep points is then distributed among the ranges in consideration of the
Spectrum Emission Mask (SEM) Measurement
