140 N9912A FieldFox User’s Guide
How to choose marker format
Press Marker
Then More
Then Marker Format
Then choose from the following:
Mag & Phase (Magnitude and Phase)
R + jX Complex impedance format
Searching with Markers
Marker Searches are used to move markers to locations on the trace which
exhibit the characteristics of the search criteria. Learn ‘What is a Peak’’ on page
143.
How to Search with Markers
The following menu structure applies to NA Mode. For keystroke information for
CAT Mode and SA Mode, see Hardkey/Softkey Menus on page 180.
Activate the marker to be used for the search (NOT necessary with Bandwidth
search.)
Then press Mrk ->/Tools.
Then Marker Search
Then choose one of the following:
o Tracking ON OFF (NA Mode ONLY)
o ON causes the active marker to search for the specified criteria with each
new sweep. Search criteria can include: Target, Bandwidth, Peak, Min.
The searches begin with the first sweep after Tracking is turned ON,
based on the current search type. The stimulus setting for a marker can
NOT be changed manually. Trk appears next to the marker number.
o OFF causes a new marker search only when the search feature is re-
executed.
o Peak Moves the active marker to the HIGHEST amplitude data point of the
trace. Peak Excursion value is ignored. In SA Mode, the LO feed-through
signal (0 Hz) is also ignored.
o Min (Not available in DTF) Moves the active marker to the LOWEST
amplitude data point of the trace.
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