Tektronix TekScope THS 710, User Manual

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Glossary
Glossary–6
THS 710 & THS 720 User Manual
Pop-Up Menu
A submenu of a menu. Pop-up menus temporarily occupy part
of the waveform display area and present choices associated
with the menu item selected. You can cycle through the options
in a pop-up menu by repeatedly pressing the menu button
underneath the pop-up.
Pretrigger
The specified portion of the waveform record that contains data
acquired before the trigger event.
Pulse Trigger
Triggering on events that you can qualify by time. The
oscilloscope triggers when an incoming pulse width meets time
criteria you have defined.
Record Length
The specified number of samples in a waveform.
Reference Lead
The oscilloscope lead attached to the reference voltage in a
measurement application. Because of the isolated channels, the
meter common lead and the scope reference leads do not have to
be connected to the same reference voltage.
Reference Waveform
A saved wavefrom selected for display. You can display two
reference waveforms as Ref A and Ref B.
Rocker
A two-position button on the front panel used to control
functions such as volts/division and trigger level.