Specifications

8
The scale in dB per division and
the reference values can be adjusted
to give an optimized view of the
measured results. The scale per
division can be adjusted in 0.1 dB
steps from 0 to 20 dB. The reference
level can be placed at the top of the
graph, in the center or at the bottom.
The reference level is adjustable
in 0.1 dB steps from –100 dB to
+100 dB.
Use the Auto Scale feature to give
the broadest view of the measured
trace. The lowest point will be placed
at the bottom of the graph and the
highest value at the top of the graph.
Figure 8.
Display of noise
figure after
auto-scaling
Instructions Keystrokes
Set the scale of the graphical view. Press [Amplitude] [Next Window] to highlight
the graph to be changed. Press {Scale/Div}
and enter the new value [1.5] and press {dB}.
Set the reference value and the position Press [Amplitude], then [Next Window] to
of the reference. highlight the graph to be changed.
Press {Ref Value} and enter [18] and press {dB}.
Move the position of the Ref Value by pressing
{Ref Position Ctr}.
Expand the trace to fit the graph for a better Press [Amplitude] use [Next Window] to
view of the measurement using the Auto Scale highlight the graph to be expanded then press
function as shown in Figure 8. {Auto Scale}.
Perform display scaling.
Scale and reference
level values