Resolution Bandwidth (Res Bw) - Keysight FieldFox B Series User Manual

SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)
SA Mode Settings
—
—
By default, the source output will turn off momentarily at the end of each
IQA and SA sweep and also every 300 seconds during the InstAlign
process.
To cause the source to stay ON at the end of each sweep, turn battery saver
OFF. (Learn more in
— Press System 7 >
— In the table, select Battery Saver. Press
— Press Cal 5
— Then

Resolution Bandwidth (Res BW)

In SA Mode, the Res BW provides the ability to resolve, or see closely spaced
signals. The narrower (lower) the Res BW, the better the spectrum analyzer can
resolve signals. In addition, as the Res BW is narrowed, less noise is measured
by the spectrum analyzer ADC and the noise floor on the display lowers as a
result. This allows low level signals to be seen and measured. However, as the
Res BW is narrowed, the sweep speed becomes slower. See
Times" on page
How to set Res BW
1. Press BW 2 >
2. Then choose from the following:
Keysight N9938-90006 User's Guide
Source Power Sets the source power level. Choose from:
— Leveled Enter a value from –60 dBm to 10 dBm using the numeric
keypad, arrows, or the rotary knob
reasonably flat across the frequency span.
— MAX The power level is set to the maximum achievable power level at
each frequency. This results in the power level NOT being flat across
the frequency span.
Source CW Freq Sets the CW frequency that is used when Source Mode is
set to CW.
"How to Access Individual Alignments" on page
Preferences
To suspend InstAlign: (Learn more in
Alignments" on page 208.)
Amptd Alignment OFF
193.
Res BW.
— Auto Res BW is coupled to the frequency span. As the frequency
span is narrowed, the Res BW is also narrowed providing increased
ability to resolve signals.
To change this setting from Man to Auto, press Res BW twice.
1. N995xB/6xB cannot have the Leveled value set lower than –35 dBm.
1
. The source power is
Preferences then
>
Edit then Battery Saver ON OFF
"How to Access Individual
208.)
"Very Long Sweep
185