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LAST
SPAN
Limit
Lines
LIMIT
LINES
LIPPITS
FIX
REL
Spectrum Analyzer Mode Key Descriptions
Spectrum Analyzer Mode Functions
changes the analyzer frequency span to the previous span
setting.
Front-Panel Key Access
ISPAN)
accesses the limit-line menus.
Front-Panel Key Access
@‘%iZ-]
When accessed by
m,
pressing LIMIT LINES stores
the current limit-line tables in analyzer memory or on
the memory card. When accessed by (RECALL), pressing
LIMIT LINES recalls limit-line tables from analyzer
memory or the memory card. See “To Save a Limit-Line
Table or Amplitude Correction Factors” or “To Recall
Limit-Line Tables or Amplitude Correction Factors” in
Chapter 3 for more information.
Front-Panel Key Access
[RECALL]
or (SAVE_)
allows you to choose fixed or relative type of limit lines.
The fixed (FIX) type uses the current limit line as a
reference with fixed frequency and amplitude values.
The relative (REL) setting causes the current limit-line
value to be relative to the displayed center frequency and
reference-level amplitude values. When limit lines are
specified with time, rather than frequency, the REL setting
only affects the amplitude values. The current amplitude
values will be relative to the displayed reference-level
amplitude, but the time values will always start at the left
edge of the graticule.
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