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N9912A FieldFox User’s Guide
o
Enter a
positive
offset to shift the limit line UP, usually used with UPPER
limits.
o
Enter a
negative
offset to shift the limit line DOWN, usually used with
LOWER limits.
o
Margin
Shifts the limit line up or down like an offset, but only virtually. The
limit line does NOT appear to move. Enter a Margin value using the rotary
knob, the
▲|▼
arrows, or by entering a value with the number keys.
o
Enter a
positive
margin to virtually shift the limit line UP.
o
Enter a
negative
margin to virtually shift the limit line DOWN.
How to Save and Recall Limits
In addition to saving and recalling limits with an *.sta file, limit lines can also be
saved and then recalled independent of the current mode or measurement. Use
this feature to recall and apply existing limit lines to measurements with
different settings or even a different frequency range.
Limit line files can be loaded into the FieldFox Data Link Software. Learn how in
the help file that is included in the Data Link software.
How to Save and Recall Limits
Press
Save/Recall
then
Select Device
to set the Device (Internal, SD card, or
USB flash drive) to be used for the Save or Recall. Learn more on page 153.
Then press
Limit
.
Then choose from the following:
o
Save Limits
After limit lines have been defined, this saves the line
definition to a file on the specified device.
o
Recall Limits
Recalls a limit Line definition from the specified device.
All about Trace Math
Trace Math is available ONLY in
CAT
and
NA
Modes, but not in DTF
measurements.
A trace is a series of measurement data points that are connected to form a line.
This ‘live’ data trace is updated as data points are measured.
A memory trace is a live trace that has been stored in the FieldFox volatile
memory. It then becomes static, meaning it is not updated with measurements. It
can be displayed on the screen by itself, or with a data trace for comparison
purposes.
In NA mode, memory traces are the same color as data traces, but muted
(duller).
In CAT mode, the data trace is displayed in yellow and the memory trace is
displayed in blue.
How to display data and memory traces
Press
Trace 6
.
Summary of Contents for FieldFox N9912A
Page 15: ...Preparing for Initial Use of Your New FieldFox 15 Take the FieldFox Tour Front Panel ...
Page 194: ...194 N9912A FieldFox User s Guide Batteries Safe Handling and Disposal ...
Page 195: ...Safety Considerations 195 Inspired Energy Battery ...
Page 196: ...196 N9912A FieldFox User s Guide ...
Page 197: ...Safety Considerations 197 ...
Page 198: ...198 N9912A FieldFox User s Guide ...
