Wideband Tests
126
AXS-200/635
Data Rate Prediction
PSD Noise
The
PSD Noise
tab identifies the
presence of disturber signals when no
filter is selected as
Dominant
Disturber
and the
RMS Noise
value
from the power spectral density (PSD)
noise tests in text and graphical form.
RMS noise voltage measures the
signal-to-noise ratio of the circuit.
The list and buttons on the tab are
described below:
³
(Zoom function List) allows you to select the desired zoom function:
Horizontal Zoom
or
Vertical Zoom
. The selected function is displayed
in the box.
³
Zoom In
allows you to increase the level of zoom for the selected
zoom function.
³
Zoom Out
allows you to reduce the level of zoom for the selected
zoom function.
To zoom in or out:
1.
Press
to display a list of zoom functions.
2.
Press the up/down arrow keys to highlight the desired zoom function.
3.
Press
to select the zoom function.
4.
Use the left/right arrow keys to highlight the
Zoom In
or
Zoom Out
button as required, then press
.
The graphical display zooms in or out accordingly.
5.
Press
repeatedly to continue zooming.
To move the screen pointer:
Press the left/right arrow keys to move the screen pointer. The pointer
value updates dynamically.
