Tektronix 4000 Series, User Manual

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Get Acquainted with the Instrument
Using Other Controls
These buttons and knobs control waveforms, cursors, and other data input.
1. Turn the upper multipurpose knob a ,
when activated, to move a cursor, to set a
numerical parameter value for a menu item,
or to select from a pop-up list of choices.
Push the nearby
Fine button to toggle
between coarse and fi ne adjustment.
Screen icons tell you when a or b are
active.
2. Cursors . Push once to activate the two
vertical cursors. Push again to turn on the
two vertical and two horizontal cursors.
Push again to turn off all cursors.
When the cursors are on, you can turn
the multipurpose knobs to control their
position.
58 Tektronix 4000 Series Oscilloscopes User Manual