Operating Basics
Select an Inpu
t Channel
After you have connected probes to the desired inputs, you will want to select
an input channel and set the parameters for that channel. To select a channel,
do the follow
ing:
1. Press one of the channel buttons to display the associated input menu and
to turn the i
nput on.
2. Coupling is DC by default. Select AC coupling if you want to observe a small
AC signal t
hat rides on a DC signal. When AC coupling is active, the 1~ icon
will be visible in the lower left portion of the display screen.
NOTE. Autoset can affect how coupling functions. For more information, read
about the Autoset feature. (See page 29, Display a n Unknown Signal with Autoset
or AutoRange™.)
3. Press the function button to s elect Input Options and select the desired
attenuation and bandwidth settings. Read more about attenuation and
bandwidth s ettings. (See page 38, Acquire Waveforms.)
Assig
nPositionandScale
to Multiple Channels
If the channel button is illuminated, the horizontal and vertical Position and Scale
buttons are assigned to the indicated channel.
To assign the Position and Scale buttons to multiple channels, do the following:
1. Press and hold the Ch 1 button.
2. Press another one or more channel buttons in sequence.
3. Re
lease the Ch 1 button.
All pressed buttons are now illuminated. The Position and Scale buttons now
a
pply to all active channels.
To deactivate this fea ture, press a single channel button.
28 THS3000 Series Oscilloscopes User Manual
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