Agilent Technologies FieldFox N9912A User Manual

SA (Spectrum Analyzer) Mode 83
 Source Enable ON OFF
o ON Turns ON the internal source.
o OFF Turns OFF the internal source.
 Source Mode Choose from the following:
o Tracking The internal source sweeps simultaneously (tracks) with the SA
receiver over the displayed frequency range, emulating NA mode
measurements. Src is annotated on the screen.
o CW The source is set to a CW frequency independent from the SA setting.
Srcw is annotated on the screen.
o Coupled CW The source is set to a CW frequency, but that frequency
“tracks” the SA receiver Center Frequency setting. Therefore, the signal
always appears at center of the display. Srcp is annotated on the screen.
 Normalize ON OFF With Source Enable ON and Source Mode = Tracking,
Normalize ON stores the current measurement trace into Trace 4 in View state
as a reference trace. All subsequent trace measurements subtract out this
Trace 4 reference trace, and therefore become relative to it. This causes
measurements to appear near the ZERO absolute level on the y-axis (0 dBm if
UNIT is set to dBm). SrcN is annotated on the screen. Normalize is
automatically turned OFF when the frequency range or Resolution is changed.
Learn more about Trace Display States on page 89.
 Source Power Sets the source power from -45 dBm to 0 dBm in 1 dB steps.
NOTE The FieldFox output power is approximate and NOT flat across the frequency
range.
 Source CW Freq Sets the CW frequency that is used when Source Mode is set
to CW.
By default, the source output will turn off momentarily at the end of each SA
sweep. To cause the source to stay ON at the end of each sweep, turn battery
saver OFF. (Learn about Battery Saver on page 164.)
 Press System 7
 Then Preferences
 Then Battery Saver OFF
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.
How to set Res BW
 Press BW 2.
 Then Res BW Auto | Man.

Agilent Technologies FieldFox N9912A Specifications

General

Brand	Agilent Technologies
Model	FieldFox N9912A
Category	Measuring Instruments
Language	English