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8.4 Displaying the time characteristic (Spectrogram)
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169
Figure 40: Spectrogram in
Spectrogram & Spectrum
display mode.
1
2 3
No. Function / Explanation
1 Spectrogram
0 is the current value; the values along the Y axis show the elapsed time in
seconds. There are 400 lines available. The total range that can be displayed
depends on the Sweep Time and the selected time resolution (see
Changing
the time resolution (Time Resolution) on page 170). If the entire time range
cannot be shown in one diagram, the spectrogram marker function allows you
to scroll back to older values (see
The Spectrogram Marker
on page 171).
2 Colored display of the signal level
in the spectrogram.
The dashes next to the color scale correspond to the subdivisions of the Y axis
in the Spectrum window, i.e. 10 to 90 dBµV/m in the example shown.
You can adjust the colored display using the
Y-Scale Range
and
Y-Scale Ref
parameters in the
Display
menu (see
Adjusting the Y axis (Y-Scale)
on page 105).
3
Softkey for selecting the
Time Resolution
.