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154 Chapter 5
Analog Measurements - Screens and Control Fields
Time Track/Fixed
Time
This measurement displays the time elapsed from the trigger point to
the current marker position.
The
Ref Set function can be used with this measurement to display time
relative to a specific position. (See "Setting A Measurement Reference"
on page 45.)
Screens on which this field is displayed
SCOPE: all control menus
Time/div
This field selects the horizontal sweep time per division.
Operating Considerations
The time-per-division is selected from a list of choices.
Screens on which this field is displayed
SCOPE: main controls menu
Track/Fixed
When this field is set to Track, the tracking generator is enabled. The
tracking generator performs a frequency sweep operation. The start
and stop frequencies are determined by the Span setting (main controls
menu). The tracking generator allows you to characterize devices (such
as filter networks) over wide span of frequencies.
An RF offset can be set between the tracking generator and the center
frequency of the spectrum analyzer. This allows you to look at a signal
that is related to a source whose frequency is outside the displayed
span.
Screens on which this field is displayed
SPEC ANL: RF generator controls menu
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