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UTD1000L User M anua l
Under window zoom function there are two
separate display zones as indicated in the figure
above The upper part is for the original waveform
.
Press OK button and then use Left and Right
buttons to select the waveform to be expanded o
n
the left or right, or enlarge or narrow down the
selected zone with s/ns butto
n
The lower display is for the expanded
waveform corresponding to the selected original
zone. One point worth mentioning is that compared
with the main timebase, the expanded timebase
has improved the resolution for the waveform
display ( See Figure 6-5). Since the displayed
waveform corresponds to the selected zone of
upper part, using s ns button to narrow down the
selected zone can enable the expanded waveform
to have better timebase namely a higher
waveform amplification factor in a horizontal
directio
n
Switch on horizontal menu, use Right and Left
buttons to adjust hold-off time (100ns-1.5s It ca
n
be applied to observe complex waveforms eg
:
bur st Hold-off tim e is to adju st dat a acqui siti o
n
period of the oscilloscope to stay in a integral
multiple related to the period of complex
waveform so that the Oscilloscope and complex
waveform can synchronize
.
For example, apply tested combined signals into
Ch1 Press HORIZONTAL to turn on horizontal
menu then press Right and Left buttons to adjust
the hold-Off time until displayed waveform
become stable See Figure 6-
6
Adju sti ng Trigger Hold Of
f
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