Chapter 2 General Operation
Using limit lines
9102 Handheld Spectrum Analyzer Software version 5.31
37
Selecting limit lines within
the 9102
1 From the main menu, select Level > Limits Memory.
The Limits Memory menu appears.
2 Push the
Recall Limit Template softkey.
An entry field appears, together with a file selection box.
3 Select a file either by moving the selection to its file name using the
U
P/DOWN cursor keys, or by entering the file name in the entry field
and closing the input field by pressing E
NTER.
The file with the limits is loaded and the upper/lower limits are acti-
vated immediately.
Activating and deactivating
limit templates
1 Select a limits file (see section “Selecting limit lines within
the 9102”).
2 Select
Level > Limits Evaluation
The Limits Evaluation menu appears.
3 Select the limits option you want by pushing the appropriate
softkey from the following choice:
Off, Upper/Lower, Upper Limit,
Lower Limit.
If you selected
Off, no limits are displayed. Otherwise, the selected
limits curve (upper and/or lower limits) appears on the screen. A
Pass/Fail indication is given for each measurement trace in the
upper left-hand corner.
Deleting limit files in
the 9102
1 From the main menu, select
Level > Limits Memory.
2 a. To delete an individual file, push
Delete Limit Template, select a
limits file with the U
P/DOWN cursor keys and push ENTER to delete
an individual file (pressing E
SC aborts the process before the file is
deleted).
b. To delete all limit files stored in the 9102, push
Delete All
Templates
. Confirm by pressing ENTER, if you really want to delete
all limit files.
Counting limit failures When limit checking is enabled, a failure counter can be activated. The
number of failures appears below the Pass/Fail verdict. The counter
makes particular sense for statistical evaluations. For this application, it
is important to define the number of measurements. The following
sequence can be useful to obtain a failure count in conjunction with a
defined number of measurement traces.
1 Select a limited number of traces (
Freq > Sweep, see “Performing a
limited number of measurements” on page 66).
2 From the main menu, select
Level > Limits Evaluation > Fail Count
to turn the failure counter on; if it was on already it should be
switched off and on again.
The failure counter is reset to 0.
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