User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
171User Manual 1178.3370.02 ─ 09
Figure 7-29: Behavior for overlapping masks
●
For the ranges in which multiple limit lines are significant, a range-specific function
determines the behavior of the limit check
Limit calculation for individual ranges
For each range a function can be defined that determines the behavior of the limit
check if there are multiple limit lines:
●
"NONE": In reference ranges no limit check is performed;
Reference ranges always use the function "NONE".
For other ranges, see the combinations for overlapping ranges below.
●
"SUM": sum of the two limit lines (calculated for linear powers) is used
●
"MAX": maximum of the two limit lines is used
This leads to the following combinations for overlapping ranges:
●
"MAX"+"MAX": maximum of the two limit lines is used
●
"MAX"+"SUM": maximum of the two limit lines is used
●
"SUM"+"SUM": sum of the two limit lines (calculated for linear powers) is used
●
"NONE"+"MAX"/"NONE"+"SUM": limit line (and parameters) of the "NONE"
range are ignored
●
"NONE"+"NONE": depends on the position of the overlapping ranges in relation to
the mid-frequency between the two neighboring sub blocks:
– Overlap is completely below the mid-frequency: limits and parameters of the
left sub block are used
– Overlap is completely above the mid-frequency: limits and parameters of the
right sub block are used
– Overlap crosses the mid-frequency: new subranges are created: one to the left
of the mid-frequency, one to the right of the mid-frequency. The left subrange
uses the limits and parameters of the left sub block, the right subrange uses
the limits and parameters of the right sub block.
Measurements and Results