Spectrum Analyzer Measurements 3-3 Setting Frequency Parameters
Spectrum Analyzer MG PN: 10580-00447 Rev. H 3-7
FREQ / SPAN Zero Span Menu
IF OUTPUT Menu (Option 89)
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CENTER FREQUENCY: Sets the center frequency of the sweep range. The current
span setting will remain constant or will be adjusted to accommodate the start and stop
frequency range of the instrument. The center frequency can also be dragged on the
display when gestures are not toggled off.
SPAN: Sets the sweep frequency range. The current center frequency will remain
constant and the start and stop frequencies will be adjusted to accommodate the new
range. Selecting the plus (+) or minus (–) control increments the span value in a 1:2:5
sequence. The span can also be changed by pinching the trace in or out when gestures
are not toggled off.
FULL SPAN: Selecting this button sets the span to cover the entire tunable spectrum of
the instrument.
LAST SPAN: Selecting this button returns the span to the previously set span value.
ZERO SPAN: Sets the analyzer to zero span and enables the “FREQ / SPAN Zero Span
Menu” on page 3-7.
FREQUENCY STEP: Sets the frequency step value used for the plus (+) or minus (–)
control.
FREQUENCY OFFSET: The frequency offset value accounts for frequency conversions
outside of the analyzer. The offset frequency value is added to the start, stop, center,
fixed marker, and normal marker frequencies. Selecting the plus (+) or minus (–) control
moves the offset frequency in steps defined by the FREQUENCY STEP value.
IF OUTPUT: Opens the “IF OUTPUT Menu (Option 89)” on page 3-7. Requires
Option 89.
Figure 3-3. FREQ / SPAN Menu
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IF OUTPUT: Toggles the top panel IF output on or off. When IF output is on, the IF
OUTPUT BW button becomes active.
IF OUTPUT BW: When IF output is on, this button provides a list of IF output bandwidth
settings.
Figure 3-4. IF OUTPUT Menu
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