Key points
Ground Coupling. Use Ground coupling to display a zero-volt waveform.
Internally, the channel input is connected to a zero-volt reference level.
Fine Resolution. The vertical scale readout displays the actual volts/division
setting while in the fine resolution setting. Changing the setting to coarse does
not change the vertical scale until the Vertical Scale control is adjusted.
Remove Waveform. To remove a waveform from the display, push a channel
menu front panel button. For example, push the 1 (channel 1 menu) button to
display or remove the channel 1 waveform.
NOTE. You do not have to display a channel waveform to use it as a trigger
source or for math operations.
NOTE. You must display a channel waveform to take measurements from it, use
cursors on it, or to save it as a Reference waveform or to a file.
Zoom controls
Push the Zoom button to display a zoomed-in waveform in about three-quarters
of the screen. The original waveform will continue to be displayed in the upper
one-quarter of the screen. The zoomed in waveform magnifies a waveform
horizontally.
Push the Multipurpose knob or push the side-menu Scale or Position items to
select either the scaling or the positioning features.
Turn the Multipurpose knob to change the scale factor or to choose (position)
the portion of the waveform to magnify.
Reference
TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 113
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