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Measurements and Results

R&S

FSW

249User Manual 1173.9411.02 ─ 43

Table 7-13: Limit lines in overlapping ranges crossing the mid-frequency

Initial situation: overlapping ranges

Range 4 ("None") + Range 5 ("None") overlap and cross the

mid-frequency between sub blocks 1 and 2

Result: Subranges 4a and 5a are created left and right of the

mid-frequency;

For subrange 4a: limit line and parameters of range 4 apply

For subrange 5a: limit line and parameters of range 5 apply

Global SEM limit check

For the complete SEM measurement, which can consist of multiple sub blocks, only

one single limit check is performed. A single limit line is calculated according to the

individual range limit lines and the defined functions for overlapping ranges. The mea-

sured values are then compared with this single limit line. If the limit is exceeded in any

range, the result of the limit check is ."' failed!"

Spectrum Emission Mask (SEM) Measurement

R&S FSW Series User Manual

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