Keysight N9912A User Manual page 69

The frequency range of the measurement can be changed using the following
methods:
 Set Center and Span frequencies
 Set Start and Stop frequencies
 Toggle between Zero and Last selected span
 Set Full Span of the FieldFox
 Using Channel selection. Learn how on page 71.
 Using Marker -> Center (frequency). Learn how on page 151.
How to set Frequency Range
 Press Freq/Dist .
 Then choose from the following:
 Follow each of these by entering a value using the numeric keypad, the ▲|▼
 When using the ▲|▼ arrows, press Enter. The increment setting of the arrows is
 After using the keypad, select a multiplier key. Learn about multiplier abbreviations
Two more ways to change the frequency range
 Press Freq/Dist .
 Then choose from the following:
How to change frequency step size
When using the ▲|▼ arrows to change any of the frequency settings, the size of the
frequency step can be changed.
 Press Freq/Dist
 Then
SA (Spectrum Analyzer) Mode
and
Center Freq Span
o
entering frequency range. Enter the frequency of interest. The Center frequency
is at the exact center of the X-axis. The Frequency Span places half of the
frequency range on either side of center. When the Center and Frequency Span
values are entered, then the X-axis annotation on the screen shows the Center
and Span frequencies.
and frequencies. Start is the beginning of the X-axis and Stop is the
Start Stop
o
end of the X-axis. When the Start and Stop frequencies are entered, then the X-
axis annotation on the screen shows the Start and Stop frequencies.
arrows, or the rotary knob.
based on the current span. This can be changed in SA Mode. See How to change
frequency step size below.
on page 19.
Each key press toggles the frequency span between 0 Hz and
Zero/Last Span
o
the last specified frequency span.
More
o
Then Selects the entire frequency span of the FieldFox. The Center
Full Span
o
frequency is set automatically.
More
frequencies. This is the most common method of
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