Chapter 9 Reflection Operation
Changing the frequency settings
148 9102 Handheld Spectrum Analyzer Software version 5.31
Viewing the complete
frequency band
To change the frequency range to the full bandwidth supported by the
9102 for reflection measurements, proceed as follows:
1 From the Reflection main menu, push the
Freq softkey.
The Frequency menu is displayed.
2 Push the
Full Span softkey.
The leftmost frequency changes to 0 Hz and the rightmost
frequency to 4 GHz.
Performing
measurements in the
time domain
Measurements on a selected center frequency can also be displayed
in the time domain.
1 From the Reflection main menu, push the
Freq softkey.
The Frequency menu is displayed.
2 Push the
Center softkey and enter the desired center frequency;
close the input field by selecting the appropriate unit with one of
the enter keys.
3 Push the
Zero Span softkey.
The horizontal axis becomes the time axis. The scale width is iden-
tical to the sweep time.
Selecting the step size
for the frequency input
The center, start and stop frequencies can be set either by entering a
new value with the numeric keys, or by using the arrow keys (U
P,
D
OWN) to increase or decrease the current setting. The step size for an
arrow keypress can either be selected automatically by the 9102, or
manually adjusted.
Manually setting the frequency step size
1 From the Reflection main menu, select
Freq.
2 Push the
FStep softkey.
The Freq Step entry field opens.
3 Enter a new frequency step value and close the entry field by
pressing
Enter. The auto/manual selection switches to manual and
the selected frequency step size is displayed on the softkey.
Setting the frequency step size selection to automatic
1 From the Reflection main menu, select
Freq.
2 Push the
FStep softkey several times until the “auto” selection is
highlighted.
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