Rohde & Schwarz R&S UPP, Руководство пользователя

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Instrument Functions
R&S
®
UPP
604 User Manual 1411.1055.32 ─ 10
5.52.4 Limit Files
A Limit list contains X and Y data that has been extracted from the current measured
value sequence. When it is saved, no distinction is made about whether the file will be
used later as an Upper Limit or as a Lower Limit. This depends on whether the file is
loaded as an Upper Limit file or as a Lower Limit file. A limit list that has been obtained
from a measured value sequence usually has more interpolation points than neces-
sary, and it is therefore often necessary to process the file further. For information on
how to do this see section
Chapter 5.55, "Editing" , on page 621.
A limit list must contain at least two different points forming a straight line.
If a limit list is saved from a multiscan display (including the Min/Max scans in the case
of a single scan display), the Y values are extracted from the currently selected scan.
The file can contain a maximum of 1024 X/Y pairs.
If the file name is specified without an extension, the suggested file name extension
is .LIM, but any desired extension can be specified.
For a detailed description of the storage format, see section Chapter 5.54.4, "Limit
Files" , on page 619.
5.53 Load
5.53.1 Trace Files
When traces are loaded, unlike when they are saved, a distinction is made between
Trace A or Trace B. Since the trace file always contains both traces, provided both
traces were enabled when saved, a decision is made via the parameter field "Y-Source
" = File:
Trace A or File: Trace B about which trace to load from the file.
Load